{"id":12836,"date":"2026-10-11T13:43:00","date_gmt":"2026-10-11T04:43:00","guid":{"rendered":"https:\/\/kojihifu.com\/english\/?p=12836"},"modified":"2026-10-11T13:43:02","modified_gmt":"2026-10-11T04:43:02","slug":"skincare-routine-tokyo-weather-tips","status":"publish","type":"post","link":"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/","title":{"rendered":"Tokyo Weather Skincare Routine: Beat Humidity and Pollution"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"MedicalWebPage\",\"@id\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/#webpage\",\"url\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/\",\"name\":\"Tokyo Weather Skincare Routine: Beat Humidity and Pollution\",\"inLanguage\":\"en\",\"isPartOf\":{\"@id\":\"https:\/\/kojihifu.com\/english\/#website\"},\"about\":{\"@id\":\"https:\/\/kojihifu.com\/english\/#clinic-biotope\"},\"reviewedBy\":{\"@id\":\"https:\/\/kojihifu.com\/english\/#physician-karibe\"},\"lastReviewed\":\"2026-10-09\"},{\"@type\":[\"Article\",\"MedicalWebPage\"],\"@id\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/#webpage\"},\"headline\":\"Tokyo Weather Skincare Routine: Beat Humidity and Pollution\",\"url\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/\",\"inLanguage\":\"en\",\"author\":{\"@id\":\"https:\/\/kojihifu.com\/english\/#physician-karibe\"},\"reviewedBy\":{\"@id\":\"https:\/\/kojihifu.com\/english\/#physician-karibe\"},\"publisher\":{\"@id\":\"https:\/\/kojihifu.com\/english\/#organization\"},\"mainEntityOfPage\":{\"@id\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/#webpage\"},\"description\":\"Build a skincare routine for Tokyo weather with expert tips on humidity, PM2.5 pollution, and seasonal skin changes. Consult our English-speaking clinic.\",\"datePublished\":\"2026-10-09\",\"dateModified\":\"2026-10-09\",\"lastReviewed\":\"2026-10-09\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/kojihifu.com\/english\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Skin & Dermatology\",\"item\":\"https:\/\/kojihifu.com\/english\/column\/skin-dermatology\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Tokyo Weather Skincare Routine: Beat Humidity and Pollution\",\"item\":\"https:\/\/kojihifu.com\/english\/skincare-routine-tokyo-weather-tips\/\"}]}]}<\/script><br \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Do I need a completely different skincare routine for each season in Tokyo?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A full overhaul is rarely necessary. The most practical approach is a consistent core routine \u2014 cleanser, antioxidant serum, moisturiser, and SPF \u2014 with adjustments in formulation weight and active ingredient selection as seasons change. Switching from a cream to a gel moisturiser in summer and back again in winter is often sufficient for most skin types.\"}}, {\"@type\": \"Question\", \"name\": \"Can Tokyo's air pollution cause breakouts or worsen acne?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Clinical evidence suggests that PM2.5 particles can adsorb onto skin and contribute to pore congestion, and that pollution-induced inflammation may aggravate existing acne. Evening double cleansing and regular use of a BHA such as salicylic acid can help address this build-up. If acne is persistent or worsening, a dermatology consultation is advisable.\"}}, {\"@type\": \"Question\", \"name\": \"How often should I exfoliate in Tokyo's humidity?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Chemical exfoliation with an AHA or BHA once or twice per week is generally appropriate for most skin types. Over-exfoliating during the high-humidity summer months can increase sensitivity and impair the barrier; reduce frequency if redness or irritation occurs. Physical scrubs are generally not recommended, as they may introduce micro-tears and worsen inflammation linked to pollution exposure.\"}}, {\"@type\": \"Question\", \"name\": \"Is Tokyo's tap water suitable for rinsing the face?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Tokyo's tap water has a relatively low mineral content (soft water), which is generally less irritating to skin than hard water. That said, repeated rinsing without a gentle, pH-balanced cleanser can still disrupt the skin's natural acid mantle over time, particularly in winter when the barrier is already compromised.\"}}]}<\/script><\/p>\n<h2>Tokyo&#8217;s Climate and Your Skin: What You&#8217;re Actually Up Against<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Skincare routine for Tokyo weather: humidity and p \u2014 Tokyo's Climate and Your Skin: What You're Actually Up Again\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/10\/pexels_9775053_1791524758.webp\" alt=\"Skincare routine for Tokyo weather: humidity and p \u2014 Tokyo's Climate and Your Skin: What You're Actually Up Again\" \/><\/figure>\n<p>Living in Tokyo means navigating one of the most variable urban climates in the world \u2014 sweltering, humid summers followed by dry, cold winters, overlaid year-round by urban air pollution.<\/p>\n<p>Each shift places different demands on the skin barrier, and a routine that works in January will actively underserve you by August. This article breaks down exactly how Tokyo&#8217;s weather and air quality affect the skin, and what a practical, evidence-based routine looks like across every season.<\/p>\n<p><strong>What you&#8217;ll learn in this article:<\/strong><\/p>\n<ul>\n<li>How Tokyo&#8217;s humidity levels and PM2.5 air pollution physically damage the skin<\/li>\n<li>Which skincare adjustments are warranted season by season<\/li>\n<li>Which active ingredients have clinical evidence for anti-pollution protection<\/li>\n<li>Common mistakes people make when adapting a routine to humid, polluted conditions<\/li>\n<li>When to seek professional dermatology or cosmetic skin support in Tokyo \u2014 and where English-language care is available<\/li>\n<\/ul>\n<div class=\"kjmc-en-booking-inline\" style=\"background: #f7fbf7; border: 1px solid #d5e6d8; border-radius: 10px; padding: 16px 20px; margin: 26px 0; text-align: center;\">\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 0.95em; line-height: 1.65;\"><strong>Have a question about this treatment?<\/strong><br \/>\nMessage us on LINE or WhatsApp \u2014 our English-speaking team usually replies the same day.<\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; gap: 8px; background: #06C755; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><br \/>\n<a style=\"display: inline-flex; align-items: center; gap: 8px; background: #25D366; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>Tokyo&#8217;s Climate: The Numbers Behind the Challenge<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Skincare routine for Tokyo weather: humidity and p \u2014 Tokyo's Climate: The Numbers Behind the Challenge\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/10\/pexels_4672599_1791524759.webp\" alt=\"Skincare routine for Tokyo weather: humidity and p \u2014 Tokyo's Climate: The Numbers Behind the Challenge\" \/><\/figure>\n<p>Tokyo&#8217;s relative humidity averages approximately 64% across the year, but the range is what creates the challenge.<\/p>\n<p>January sees average humidity around 54\u201355%, while September peaks at roughly 81\u201382% \u2014 a swing of nearly 30 percentage points.<\/p>\n<p>The rainy season (tsuyu, typically June to mid-July) and late summer together represent a sustained period of high heat and humidity, with temperatures regularly exceeding 35\u00b0C in recent years due to the urban heat island effect.<\/p>\n<p>Air quality adds a further dimension. Tokyo&#8217;s annual average PM2.5 concentration has been measured at approximately 11.7 \u03bcg\/m\u00b3, placing it in a moderate global bracket but still above World Health Organization air quality guidelines. Pollution levels tend to peak in winter, particularly in February, partly due to transboundary particulate matter carried from the Asian continent.<\/p>\n<p>Cedar pollen season (February to April) introduces an additional airborne irritant that can trigger or worsen inflammatory skin conditions.<\/p>\n<p>Indoor environments compound the problem. Air conditioning in summer and heating in winter both reduce ambient humidity significantly, meaning the skin may be dehydrated indoors even when outdoor humidity is high.<\/p>\n<h2>How Pollution and Humidity Damage Your Skin<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Skincare routine for Tokyo weather: humidity and p \u2014 How Pollution and Humidity Damage Your Skin\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/10\/pexels_17891765_1791524759.webp\" alt=\"Skincare routine for Tokyo weather: humidity and p \u2014 How Pollution and Humidity Damage Your Skin\" \/><\/figure>\n<h3>The Science of PM2.5 and Skin Ageing<\/h3>\n<p><strong>Fine particulate matter (PM2.5)<\/strong> consists of airborne particles measuring less than 2.5 micrometres \u2014 small enough to penetrate the stratum corneum, the outermost protective layer of skin. Once absorbed, these particles generate reactive oxygen species (ROS) and trigger inflammatory cytokines, accelerating collagen degradation and disrupting normal cell function.<\/p>\n<p>A 2024 editorial in <em>Antioxidants<\/em> highlighted that PM-induced mitochondrial dysfunction and ROS generation are key cellular mechanisms driving accelerated skin ageing in polluted urban environments.<\/p>\n<p>A 2025 systematic review and meta-analysis by Tjiu and Lu, published in <em>Life<\/em>, examined long-term PM2.5 exposure and clinical skin ageing outcomes across human cohorts.<\/p>\n<p>All individual pigmentary estimates in the analysis were directionally positive, suggesting a consistent association between PM2.5 exposure and pigmentary skin ageing.<\/p>\n<p>One included cohort study reported a 3.2% increase in wrinkle severity per 10 \u03bcg\/m\u00b3 rise in PM2.5. The authors acknowledged that the current evidence base remains limited in size and certainty, but the directional consistency across studies is notable.<\/p>\n<p>For those with sensitive or reactive skin, the inflammatory effects of air pollution carry more immediate consequences.<\/p>\n<p>A 2025 meta-analysis published in <em>JAMA Dermatology<\/em> by Park and colleagues, synthesising data from 42 studies across 14 countries, found that elevated PM2.5 levels probably increase atopic dermatitis-related emergency department and clinic visits \u2014 a finding rated as moderate-certainty evidence.<\/p>\n<h3>What Humidity Extremes Do to the Skin Barrier<\/h3>\n<p>High humidity during Tokyo&#8217;s rainy season and summer creates excess surface moisture, which can trap sebum, dead skin cells, and pollution particles within pores, increasing the risk of congestion and inflammatory acne.<\/p>\n<p>Low humidity in winter reduces the skin&#8217;s natural moisturising factors (NMFs) and impairs ceramide production, weakening barrier integrity and increasing transepidermal water loss (TEWL). Both extremes, in their own way, compromise the skin&#8217;s ability to defend itself against environmental stressors.<\/p>\n<h2>A Season-by-Season Skincare Routine for Tokyo<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Skincare routine for Tokyo weather: humidity and p \u2014 A Season-by-Season Skincare Routine for Tokyo\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/10\/pexels_12932911_1791524760.webp\" alt=\"Skincare routine for Tokyo weather: humidity and p \u2014 A Season-by-Season Skincare Routine for Tokyo\" \/><\/figure>\n<p>The most practical approach is a consistent core routine \u2014 antioxidant serum, broad-spectrum SPF, a cleanser appropriate for your skin type, and a moisturiser \u2014 adjusted in formulation weight and active ingredient focus according to the season. The table below summarises the key seasonal shifts.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin: 20px 0; font-size: 0.95em; border: 1px solid #ccc;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Season<\/th>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Key Skin Challenge<\/th>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Routine Focus<\/th>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Priority Ingredients<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Spring (Mar\u2013May)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Cedar pollen, rising humidity and UV<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Anti-inflammatory protection, consistent SPF<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Niacinamide, centella asiatica, broad-spectrum SPF 50+<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Rainy season (Jun\u2013Jul)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Humidity up to 80%, heat, sweat-accelerated dehydration<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Oil control, lightweight hydration<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Water-based gel moisturiser, BHA (salicylic acid)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Late summer (Aug\u2013Sep)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Peak UV, humidity ~82%, oxidative stress from pollution<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Antioxidant defence, diligent SPF application<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Vitamin C serum, ferulic acid, broad-spectrum SPF 50+<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Autumn (Oct\u2013Nov)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Falling humidity, early barrier weakening<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Transitional hydration, barrier preparation<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Hyaluronic acid, ceramides, richer moisturiser<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Winter (Dec\u2013Feb)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Low humidity (~55%), cold air, indoor heating<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Barrier repair, anti-pollution cleansing<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Ceramides, squalane, fragrance-free formulations<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>A consistent evening habit that deserves emphasis in any Tokyo season is double cleansing: an oil-based or micellar first step to remove sunscreen, surface pollution particles, and excess sebum, followed by a gentle water-based cleanser. This is particularly important during the high-pollution winter months when PM2.5 levels peak.<\/p>\n<h2>Anti-Pollution Skincare: Ingredients With Clinical Evidence<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Skincare routine for Tokyo weather: humidity and p \u2014 Anti-Pollution Skincare: Ingredients With Clinical Evidence\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/10\/pexels_9774665_1791524761.webp\" alt=\"Skincare routine for Tokyo weather: humidity and p \u2014 Anti-Pollution Skincare: Ingredients With Clinical Evidence\" \/><\/figure>\n<p><strong>Vitamin C (L-ascorbic acid).<\/strong> A review published in the <em>Journal of Clinical and Aesthetic Dermatology<\/em> confirmed that topical vitamin C protects against UV-induced oxidative damage and that combining it with vitamin E and ferulic acid \u2014 which stabilises the formulation \u2014our Clinic\u2019s <strong>Vitamin C nano powder<\/strong> doubles its photoprotective effect.<\/p>\n<p>Applied in the morning beneath SPF, a vitamin C serum addresses both UV-induced and pollution-generated free radicals simultaneously.<\/p>\n<p><strong>Broad-spectrum SPF, daily and year-round.<\/strong> UV radiation reaches the skin throughout every season. Up to 80% of UV penetrates cloud cover, and atmospheric haze does not provide meaningful UV protection. Daily SPF application is a non-negotiable component of any anti-ageing and anti-pollution routine in Tokyo, regardless of the forecast.<\/p>\n<p><strong>Niacinamide (vitamin B3).<\/strong> Niacinamide supports ceramide production, strengthens the skin barrier, and has demonstrated anti-inflammatory properties \u2014 making it particularly useful during pollen season and during the humidity transitions between autumn and winter. It is also well-tolerated by most skin types, including those prone to redness and sensitivity.<\/p>\n<p>In Dr. Karibe&#8217;s clinical experience at <strong>BIOTOPE<\/strong> <strong>CLINIC<\/strong> in Shirokanedai, patients who relocate to Tokyo from lower-pollution or lower-humidity environments frequently underestimate the cumulative impact of seasonal transitions on their skin \u2014 particularly the transition from high-humidity summer into the dry, heated interiors of late autumn. Patients with specific pigmentation concerns, enlarged pores, or persistent congestion often find that incorporating a physician-directed medical-grade skincare programme accelerates improvement beyond what over-the-counter options can achieve alone. Zo Skin Health, a physician-directed cosmeceutical system, is one option available following consultation at BIOTOPE CLINIC.<\/p>\n<h3>What People Often Get Wrong About Skincare in Humid, Polluted Cities<\/h3>\n<p><strong>Misconception 1: &#8220;I do not need moisturiser in Tokyo&#8217;s humid summer.&#8221;<\/strong><br \/>\nHigh outdoor humidity does not equate to well-hydrated skin. Sweating accelerates surface water loss and repeated transitions between humid outdoor air and air-conditioned interiors create a dehydration cycle at the skin surface. A lightweight, water-based moisturiser remains necessary throughout summer, and omitting it often leads to reactive sebum overproduction.<\/p>\n<p><strong>Misconception 2: &#8220;Sunscreen is less important on overcast or hazy days.&#8221;<\/strong><\/p>\n<p>This is a common and costly error. UV radiation is present year-round and penetrates both cloud cover and atmospheric particulate haze. Skipping SPF on grey days \u2014 particularly common in Tokyo&#8217;s winter months \u2014 leaves skin unprotected against both UV damage and the compounding oxidative effects of simultaneous pollution exposure.<\/p>\n<h2>Where to Seek Professional Skincare Support in Tokyo<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Skincare routine for Tokyo weather: humidity and p \u2014 Where to Seek Professional Skincare Support in Tokyo\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/10\/pexels_9775108_1791524762.webp\" alt=\"Skincare routine for Tokyo weather: humidity and p \u2014 Where to Seek Professional Skincare Support in Tokyo\" \/><\/figure>\n<p>A solid home routine covers the foundation, but recurring concerns \u2014 persistent pigmentation, pollution-exacerbated acne, or eczema flares triggered by seasonal pollen or humidity \u2014 often benefit from assessment by a qualified dermatologist or plastic surgeon. Professional intervention can address structural skin changes that topical products alone cannot reverse.<\/p>\n<p>For pigmentation arising from long-term UV and pollution exposure, laser treatments such as PicoWay picosecond laser are available at BIOTOPE CLINIC in Shirokanedai. Medical-grade cosmeceutical programmes can also be prescribed following a consultation with Dr. Karibe&#8217;s team. These are self-pay cosmetic services. Please see the clinic&#8217;s official price page or contact us for a current quote. For an accurate quote, please book a consultation.<\/p>\n<p>For patients whose skin conditions may qualify for coverage under Japanese national health insurance \u2014 including atopic dermatitis, eczema, contact dermatitis, or acne \u2014 Kojimachi Dermatology and Plastic Surgery Clinic in Ichigaya (Chiyoda-ku) is the appropriate first point of contact.<\/p>\n<p>Within our clinic group, both <strong>BIOTOPE CLINIC (Shirokanedai, Minato-ku)<\/strong> and <strong>Kojimachi Dermatology and Plastic Surgery Clinic (Ichigaya, Chiyoda-ku)<\/strong> offer English-language consultation with Dr. Jun Karibe&#8217;s team. Cosmetic dermatology, laser pigmentation treatments, and personalised medical-grade skincare programmes are handled at BIOTOPE CLINIC. Insurance-covered dermatology conditions, including atopic dermatitis and eczema, are treated at Kojimachi. Bookings and enquiries in English: LINE or WhatsApp.<\/p>\n<div class=\"kjmc-en-booking-inline\" style=\"background: #f7fbf7; border: 1px solid #d5e6d8; border-radius: 10px; padding: 16px 20px; margin: 26px 0; text-align: center;\">\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 0.95em; line-height: 1.65;\"><strong>Have a question about this treatment?<\/strong><br \/>\nMessage us on LINE or WhatsApp \u2014 our English-speaking team usually replies the same day.<\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; gap: 8px; background: #06C755; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><br \/>\n<a style=\"display: inline-flex; align-items: center; gap: 8px; background: #25D366; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>Frequently Asked Questions<\/h2>\n<dl class=\"kj-faq\">\n<dt>Q. Do I need a completely different skincare routine for each season in Tokyo?<\/dt>\n<dd>A full overhaul is rarely necessary. The most practical approach is a consistent core routine \u2014 cleanser, antioxidant serum, moisturiser, and SPF \u2014 with adjustments in formulation weight and active ingredient selection as seasons change. Switching from a cream to a gel moisturiser in summer and back again in winter is often sufficient for most skin types.<\/dd>\n<dd><\/dd>\n<dt>Q. Can Tokyo&#8217;s air pollution cause breakouts or worsen acne?<\/dt>\n<dd>Clinical evidence suggests that PM2.5 particles can adsorb onto skin and contribute to pore congestion, and that pollution-induced inflammation may aggravate existing acne. Evening double cleansing and regular use of a BHA such as salicylic acid can help address this build-up. If acne is persistent or worsening, a dermatology consultation is advisable.<\/dd>\n<dd><\/dd>\n<dt>Q. How often should I exfoliate in Tokyo&#8217;s humidity?<\/dt>\n<dd>Chemical exfoliation with an AHA or BHA once or twice per week is generally appropriate for most skin types. Over-exfoliating during the high-humidity summer months can increase sensitivity and impair the barrier; reduce frequency if redness or irritation occurs. Physical scrubs are generally not recommended, as they may introduce micro-tears and worsen inflammation linked to pollution exposure.<\/dd>\n<dd><\/dd>\n<dt>Q. Is Tokyo&#8217;s tap water suitable for rinsing the face?<\/dt>\n<dd>Tokyo&#8217;s tap water has a relatively low mineral content (soft water), which is generally less irritating to skin than hard water. That said, repeated rinsing without a gentle, pH-balanced cleanser can still disrupt the skin&#8217;s natural acid mantle over time, particularly in winter when the barrier is already compromised.<\/dd>\n<\/dl>\n<div class=\"kjmc-en-booking-inline\" style=\"background: #f7fbf7; border: 1px solid #d5e6d8; border-radius: 10px; padding: 16px 20px; margin: 26px 0; text-align: center;\">\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 0.95em; line-height: 1.65;\"><strong>Have a question about this treatment?<\/strong><br \/>\nMessage us on LINE or WhatsApp \u2014 our English-speaking team usually replies the same day.<\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; gap: 8px; background: #06C755; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><br \/>\n<a style=\"display: inline-flex; align-items: center; gap: 8px; background: #25D366; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>Summary<\/h2>\n<p>Tokyo&#8217;s dramatic seasonal humidity range, year-round UV exposure, moderate PM2.5 air pollution, and cedar pollen season each impose distinct demands on skin. Building a resilient routine means maintaining a consistent daily foundation \u2014 an antioxidant serum, broad-spectrum SPF, and appropriately weighted moisturiser \u2014 while adapting active ingredients and formulation texture as conditions shift. Evening double cleansing is particularly important for removing airborne pollutants that accumulate during the day. When persistent pigmentation, congestion, or inflammatory flares develop despite a sound home routine, professional assessment can determine whether a medical-grade treatment or intervention is warranted.<\/p>\n<p>If you have questions about skincare for Tokyo&#8217;s climate, both <strong>BIOTOPE CLINIC (Shirokanedai, Minato-ku)<\/strong> and <strong>Kojimachi Dermatology and Plastic Surgery Clinic (Ichigaya, Chiyoda-ku)<\/strong> offer English-language consultation with Dr. Karibe and his team. Cosmetic dermatology, laser treatments for pigmentation, and medical-grade skincare programmes are primarily handled at BIOTOPE CLINIC (Shirokanedai). For insurance-covered dermatology, Kojimachi Dermatology and Plastic Surgery Clinic (Ichigaya) is the appropriate clinic. English enquiries: LINE or WhatsApp.<\/p>\n<div class=\"kjmc-en-booking-box\" style=\"background: linear-gradient(135deg,#f1faf3 0%,#e6f3ea 100%); border-radius: 14px; padding: 32px 24px; margin: 36px 0 24px; border: 1px solid #c5dccd; text-align: center;\">\n<h3 style=\"margin: 0 0 8px; color: #3a6e3a; border: none; padding: 0; font-size: 1.3em;\">24\/7 Consultation &amp; Booking<\/h3>\n<div style=\"width: 48px; height: 2px; background: #3a6e3a; margin: 0 auto 22px;\"><\/div>\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 1.1em; font-weight: bold;\">Book a Consultation or Treatment<\/p>\n<p style=\"margin: 0 0 24px; color: #2c4a35; line-height: 1.75;\">Our English-speaking team responds via LINE or WhatsApp \u2014 usually the same day.<\/p>\n<p style=\"margin: 0 0 10px; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: #06C755; color: #fff; padding: 14px 32px; border-radius: 10px; text-decoration: none; font-weight: bold; font-size: 1.02em; box-shadow: 0 2px 8px rgba(6,199,85,0.25); min-width: 240px; white-space: nowrap;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: #25D366; color: #fff; padding: 14px 32px; border-radius: 10px; text-decoration: none; font-weight: bold; font-size: 1.02em; box-shadow: 0 2px 8px rgba(37,211,102,0.25); min-width: 240px; white-space: nowrap;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>References<\/h2>\n<ol>\n<li>Tjiu JW, Lu CF. Long-Term PM2.5 Exposure and Clinical Skin Aging: A Systematic Review and Meta-Analysis of Pigmentary and Wrinkle Outcomes. <em>Life (Basel)<\/em>. 2025;16(1):61.<\/li>\n<li>Park M, Mohsen ST, Katz T, Sood S, Sy SMT, Rochwerg B, Drucker AM. Climate Conditions, Weather Changes, and Air Pollutants and Atopic Dermatitis: A Meta-Analysis. <em>JAMA Dermatology<\/em>. 2025;161(8):828\u2013839.<\/li>\n<li>Al-Niaimi F, Chiang NYZ. Topical Vitamin C and the Skin: Mechanisms of Action and Clinical Applications. <em>Journal of Clinical and Aesthetic Dermatology<\/em>. 2017.<\/li>\n<li>Yoshida Y. Oxidative Stress Induced by Air Pollution. <em>Antioxidants (Basel)<\/em>. 2024;13(11):1393.<\/li>\n<\/ol>\n<h2>Related Articles<\/h2>\n<p>You may also find these articles useful.<\/p>\n<ul>\n<li><a href=\"https:\/\/kojihifu.com\/english\/japanese-sunscreen-spf-pa-rating-guide\/\" target=\"_blank\" rel=\"noopener\">Japanese Sunscreen Guide: SPF and PA Ratings Explained<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/sensitive-skin-care-tokyo-dermatologist-5\/\" target=\"_blank\" rel=\"noopener\">Sensitive Skin Care Tokyo: See a Dermatologist in Japan<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/melasma-treatment-tokyo-causes-solutions-4\/\" target=\"_blank\" rel=\"noopener\">Melasma Treatment Tokyo: Causes and Best Solutions<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/laser-skin-treatment-tokyo-clinic-2\/\" target=\"_blank\" rel=\"noopener\">Laser Skin Treatment Tokyo: English-Speaking Clinic Guide<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/english-speaking-dermatologist-tokyo-2\/\" target=\"_blank\" rel=\"noopener\">English Speaking Dermatologist Tokyo: A Complete Guide<\/a><\/li>\n<\/ul>\n<div style=\"margin: 2.5em 0 1em; padding: 1.5em; border: 1px solid #d5d5d5; border-radius: 10px; background: #fafafa; font-size: .9em;\">\n<p style=\"font-size: .72em; font-weight: bold; color: #888; margin: 0 0 1.2em; letter-spacing: .08em;\">SUPERVISED BY<\/p>\n<div style=\"display: flex; align-items: flex-start; gap: 1.2em; flex-wrap: wrap;\">\n<div style=\"flex-shrink: 0; text-align: center; min-width: 110px;\"><img decoding=\"async\" style=\"width: 100px; height: 100px; border-radius: 50%; object-fit: cover; object-position: top center; display: block; margin: 0 auto; border: 3px solid #e0e0e0;\" src=\"https:\/\/kojihifu.com\/hon\/wp-content\/uploads\/2022\/01\/photo-karibejun-400-3_re-300x300.jpg\" alt=\"Dr. Jun Karibe MD \u2014 Board-certified Plastic Surgeon, Director of Kojimachi Dermatology &amp; Plastic Surgery Clinic\" \/><\/p>\n<p style=\"margin: .6em 0 .1em; font-weight: bold; font-size: .95em; color: #222;\">Dr. Jun Karibe<\/p>\n<p style=\"margin: 0 0 .1em; font-size: .75em; color: #999;\">MD<\/p>\n<p style=\"margin: 0; font-size: .75em; color: #555; font-weight: bold;\">Director<\/p>\n<\/div>\n<div style=\"flex: 1; min-width: 200px;\">\n<div style=\"margin-bottom: .75em; background: #fff; border: 1px solid #ebebeb; border-radius: 6px; padding: .7em 1em;\">\n<p style=\"margin: 0 0 .35em; font-size: .78em; font-weight: bold; color: #666; border-bottom: 1px solid #f2f2f2; padding-bottom: .3em;\">Education &amp; Career<\/p>\n<div style=\"font-size: .82em; color: #444; line-height: 1.75;\">\n<div>Juntendo University School of Medicine<\/div>\n<div>Department of Plastic Surgery, University of Tokyo Hospital<\/div>\n<div>Assistant Professor, Plastic &amp; Cosmetic Surgery, Saitama Medical University<\/div>\n<div>Assistant Professor &amp; Chief Resident, Yamanashi University Hospital<\/div>\n<div>2019: Founded Kojimachi Dermatology &amp; Plastic Surgery Clinic (Ichigaya, Tokyo)<\/div>\n<div>2021: Founded BIOTOPE CLINIC Shirokanedai (Minato-ku, Tokyo)<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: .75em; background: #fff; border: 1px solid #ebebeb; border-radius: 6px; padding: .7em 1em;\">\n<p style=\"margin: 0 0 .35em; font-size: .78em; font-weight: bold; color: #666; border-bottom: 1px solid #f2f2f2; padding-bottom: .3em;\">Certifications<\/p>\n<div style=\"font-size: .82em; color: #444; line-height: 1.75;\">\n<div>Board-certified Plastic Surgeon \u2014 Japan Society of Plastic and Reconstructive Surgery<\/div>\n<div>Specialist \u2014 Japan Society of Anti-Aging Medicine<\/div>\n<div>Certified Industrial Physician \u2014 Japan Medical Association<\/div>\n<div>Allergan VST-certified Injector (Botox &amp; Hyaluronic Acid)<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #fff; border: 1px solid #ebebeb; border-radius: 6px; padding: .7em 1em;\">\n<p style=\"margin: 0 0 .35em; font-size: .78em; font-weight: bold; color: #666; border-bottom: 1px solid #f2f2f2; padding-bottom: .3em;\">Awards<\/p>\n<div style=\"font-size: .82em; color: #444; line-height: 1.75;\">\n<div>Best Presentation Award \u2014 Dept. of Plastic Surgery, University of Tokyo (2016)<\/div>\n<div>Excellence Award \u2014 Japan Society of Plastic and Reconstructive Surgery (2018)<\/div>\n<div>Featured Presentation \u2014 ASPS Annual Scientific Meeting, USA (2018)<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-top: 1em; padding-top: .75em; border-top: 1px solid #e8e8e8; display: flex; flex-wrap: wrap; align-items: center; gap: .5em;\"><a style=\"display: inline-block; background: #e1306c; color: #fff; padding: .4em .9em; border-radius: 4px; text-decoration: none; font-size: .8em; font-weight: bold;\" href=\"https:\/\/www.instagram.com\/dr.jun_\/\" target=\"_blank\" rel=\"noopener noreferrer\">Instagram<\/a><\/p>\n<div style=\"margin-top: 1em; padding-top: .75em; border-top: 1px dashed #d5d5d5; font-size: .78em; color: #555; line-height: 1.7;\">\n<p style=\"margin: 0 0 .3em; font-size: .72em; font-weight: bold; color: #888; letter-spacing: .08em;\">MEDICAL REVIEW<\/p>\n<div><strong>Jun Karibe, MD<\/strong> \u2014 Board-certified Plastic Surgeon \u2014 Japan Society of Plastic and Reconstructive Surgery<\/div>\n<div>Medical Director, BIOTOPE CLINIC<\/div>\n<div>Last medically reviewed: 2026-10-09<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"Build a skincare routine for Tokyo weather with expert tips on humidity, PM2.5 pollution, and seasonal skin changes. Consult our English-speaking clinic.","protected":false},"author":4,"featured_media":12835,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[1078,1079],"class_list":["post-12836","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-skin-dermatology","tag-pm2-5","tag-anti-pollution-skincare"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/12836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/comments?post=12836"}],"version-history":[{"count":1,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/12836\/revisions"}],"predecessor-version":[{"id":12858,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/12836\/revisions\/12858"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/media\/12835"}],"wp:attachment":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/media?parent=12836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/categories?post=12836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/tags?post=12836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}