For Japanese residents living abroad, the trip home often carries an unspoken second agenda: catching up on medical and aesthetic care that is either unavailable, harder to find in Japanese, or simply better matched to Japanese anatomy overseas.
Fat grafting and PRF (Platelet-Rich Fibrin) are two treatments where that gap is especially clear.
Both are autologous — using only the patient’s own tissue — both suit the short, dense timeline of a home visit, and both are areas where technique and aesthetic sense make a large difference in the result.
This guide is written for Japanese expats and their families planning a trip back to Tokyo, whether the destination is New York, London, Singapore, Sydney, Dubai, or Bangkok. It explains what fat grafting and PRF actually do, what the current evidence shows, how to fit both into a realistic 10 to 14 day home-visit window, and what to plan for before your flight out and after you return overseas.
All clinical supervision referenced here is provided by Dr. Jun Karibe (MD), Director of BIOTOPE CLINIC in Shirokanedai, Tokyo.
Why These Two Treatments, and Why in Japan
Patients living overseas often ask a version of the same question: with cosmetic clinics everywhere from London to Singapore, why fly back to Tokyo for treatment? The honest answer has three parts.
First, aesthetic preference. Fat grafting and PRF are technique-sensitive treatments where the surgeon’s judgment about volume, placement, and proportion determines whether the result looks natural on a Japanese face. A dose or vector that reads “refreshed” on a European face can read “overdone” on an East Asian one, and vice versa. Japanese-trained aesthetic surgeons work with these proportions every day.
Second, continuity in Japanese. For patients making significant decisions about their own face, doing so in a first language matters. Consultations conducted in Japanese — and follow-up correspondence in Japanese — remove a category of avoidable misunderstanding that even fluent bilinguals report.
Third, cost and downtime alignment with a planned trip. A home visit already carries the cost of the flight and time away from work. Adding an outpatient procedure whose downtime falls inside the trip is often more efficient than local treatment abroad, especially when local prices in cities like New York, London, Zurich, or Singapore run high.
Fat Grafting: What the Current Evidence Shows
Autologous fat grafting harvests fat from the patient’s own body — most often the abdomen or thighs — processes it, and re-injects small aliquots into the face for volume restoration. Common facial targets are the temples, tear troughs (under-eye), mid-face and cheeks, marionette lines, chin, and lips.
Modern technique and retention
Facial fat graft retention rates have historically varied widely, with reported ranges of 30 to 83 percent in the literature. What has changed over the past several years is how processing choices and regenerative additives influence that number. Systematic reviews from 2024 and 2026 examining adipose-derived stem cell (ADSC) and stromal vascular fraction (SVF) enrichment report retention rates of roughly 60 to 80 percent at 3 to 6 months when these enrichment methods are used, compared with unmodified fat.
Lower-force centrifugation, gentle filtration, and micro-cannula placement of small aliquots (rather than large boluses) are the technical choices that most consistently correlate with survival and smooth contour.
What fat grafting does well — and what it doesn’t
Fat grafting is a strong choice when the goal is volume restoration in areas that have hollowed with age — temples, tear troughs, upper cheeks — or when the patient wants an alternative to repeated hyaluronic-acid filler maintenance. Once the graft has taken (assessed at approximately 3 months), the volume that survives is generally considered long-lasting.
It is a weaker choice when the concern is skin texture, pigmentation, or fine lines without underlying volume loss. It is also not a substitute for a facelift where the primary issue is skin laxity rather than lost volume.
Downtime and social recovery
Bruising and swelling at the recipient sites peak between days 3 and 5, with most social swelling resolving by days 10 to 14. Small donor-site incisions (typically 3–5 mm) at the harvest site heal within a week. Final contour is judged at approximately 3 months once the surviving graft has stabilised.
Considering a home-visit consultation?
Message our English- and Japanese-speaking team on LINE or WhatsApp — we usually reply the same day.
日本語での相談も可能です。ご帰国前のスケジュール調整もお手伝いします。
PRF: How It Differs from PRP, and Where It Fits
PRF (Platelet-Rich Fibrin) is a second-generation autologous platelet concentrate. Blood is drawn from the patient, spun in a single, slow centrifugation without anticoagulant, and the resulting fibrin-rich matrix is injected or applied topically. PRP (Platelet-Rich Plasma), by contrast, uses a two-spin process with anticoagulant and produces a liquid, faster-acting concentrate.
The clinical distinction matters. PRP releases growth factors in a rapid initial burst. PRF, because of its fibrin scaffold, releases growth factors more slowly over roughly 7 to 14 days, and provides a matrix into which cells can migrate. Both are autologous and therefore carry very low systemic risk.
What the 2025 evidence says
A 2025 systematic review in the Journal of Cosmetic Dermatology comparing PRP and PRF for periorbital rejuvenation found PRF particularly useful for texture and fine lines, while PRP performed somewhat better for pigmentation. Neither modality was clearly superior overall, and the durability of both often diminishes by 6 months, so treatment is typically discussed as a course rather than a single procedure.
For scalp and early-stage androgenetic hair loss (Norwood I–III), a 2025 meta-analysis of 43 randomised trials found activated platelet therapy statistically significantly increased hair density versus placebo, with reported density increases of approximately 31 percent at 6 months in some studies. Protocols cluster around 3 to 4 initial sessions spaced 4 to 6 weeks apart, followed by maintenance every 12 to 18 months.
Where PRF fits in a home-visit plan
PRF is well-suited to a short trip because a single session has minimal downtime — mild swelling for 24 to 48 hours, occasional pinpoint bruising — and can be scheduled comfortably alongside a fat grafting procedure. The practical constraint is that PRF works best as a course. During a home visit, one session is realistic; subsequent sessions can be scheduled during the next trip or arranged locally with a trusted provider abroad if quality-controlled equipment is available.
Common Treatment Areas and How the Two Combine
The two treatments address overlapping but not identical concerns. A short summary of how they are typically combined:
- Temples and cheeks: Fat grafting is the primary tool for volume restoration. PRF is sometimes added as a graft adjunct, though the evidence for combination at these sites is still emerging.
- Tear trough / under-eye: Fat grafting for hollowing (careful low-volume placement); PRF as an alternative or complement for skin quality and fine lines, particularly for patients who want to avoid hyaluronic-acid filler in this delicate area.
- Full-face skin quality: PRF microinjection sessions for texture and luminosity, independent of any fat grafting decision.
- Marionette lines, chin, lip volume: Fat grafting where volume is the goal.
- Scalp and early hair thinning: PRF alone, no fat grafting.
The right combination depends on the individual assessment. Some patients come for one and add the other after consultation; others plan both from the outset.
A Realistic 10 to 14 Day Home-Visit Schedule
A well-planned home visit for combined fat grafting and PRF looks something like the following. Individual schedules vary based on flight timing, other family commitments, and the specific procedure plan agreed at consultation.
Before you fly to Japan (2 to 3 weeks out)
- Initial online or LINE consultation with the clinic in Japanese; share concerns, current medications, previous treatments, and rough goals. Photographs from good lighting help.
- The clinic confirms whether both fat grafting and PRF are appropriate, and reserves dates for consultation, procedure day, and a pre-flight review.
- Practical prep: pause any blood thinners (aspirin, ibuprofen, high-dose omega-3, ginkgo, high-dose vitamin E) per surgeon instruction, typically 1 to 2 weeks before fat grafting.
- Book travel insurance that includes elective care exclusions clearly — standard travel insurance does not cover elective cosmetic complications.
Day 1 — Arrival and rest
Fly in, sleep, hydrate. Avoid scheduling anything the day of a long-haul flight.
Day 2 — In-person consultation
Formal in-person consultation. The plan agreed remotely is reviewed and adjusted with facial assessment in three dimensions. Consent is signed, quotation confirmed, and a photograph baseline taken. Any blood work required for PRF (typically none beyond a routine draw) is scheduled.
Day 3 or 4 — Fat grafting procedure
Outpatient day case. Duration usually 2 to 4 hours depending on donor site and number of recipient areas. Local anaesthesia with light sedation for most facial cases. The patient returns to the hotel or home the same day with post-op instructions.
Days 5 to 7 — Peak swelling and rest
Swelling and bruising typically peak between days 3 and 5. Cold compress for the first 48 hours, then room-temperature rest. Sleeping propped up reduces morning swelling. No exercise, no alcohol, no hot baths, no smoking. Light walking is fine.
Day 7 or 8 — PRF session
PRF can be scheduled once the acute swelling from the fat grafting has begun to settle, or arranged before the fat grafting depending on the treatment plan. Session is 45 to 60 minutes with minimal downtime; mild swelling and pinkness for 24 to 48 hours.
Day 9 or 10 — Pre-flight review
Wound check, photograph, and clinical review. Most patients are cleared to fly by day 7 to 10 post fat grafting for facial cases (body cases are different). The clinic provides a summary letter in Japanese and English for any airport-security queries about post-surgical swelling.
Day 10 to 14 — Fly home
Compression stockings and hydration for the flight. Post-flight, resume a low-intensity routine. Full contact sports and heavy training remain off the calendar for approximately 3 to 4 weeks.
Months 1 to 3 — Remote follow-up
Photograph updates by LINE at months 1 and 3. Final graft take is assessed at approximately 3 months. If a second PRF session was planned for the next home visit, timing is confirmed then. If a local provider abroad will handle subsequent PRF sessions, the clinic can share protocol notes on request.
Local Clinic Abroad vs. Home-Visit in Tokyo — What to Weigh
The right answer depends on individual circumstances. A practical framework:
- Choose local abroad when: the treatment requires many closely spaced sessions (making repeated flights impractical), your local city has a well-established Japanese-speaking clinic you trust, or a complication arises requiring immediate follow-up.
- Consider Tokyo when: the primary decision is a one-visit procedure like fat grafting, aesthetic sensibility for East Asian anatomy is central, language and cultural continuity matter, or you want the treating clinic to be the same one you continue with over years.
Many expat patients settle into a mixed pattern: fat grafting and other one-visit procedures done in Tokyo during home leave, and lighter maintenance treatments (skincare, follow-up PRF sessions where quality is adequate) done locally.
About Dr. Jun Karibe and BIOTOPE CLINIC
Dr. Jun Karibe (MD) is board-certified in dermatology, plastic surgery, and cosmetic surgery in Japan, with additional expertise in orthomolecular / nutritional medicine. He serves as Director of BIOTOPE CLINIC in Shirokanedai, Tokyo, where fat grafting, PRF, and related regenerative aesthetic treatments are performed. Overseas patients are welcomed by appointment, and consultations are conducted in Japanese with English support available.
BIOTOPE CLINIC is located a short walk from Shirokanedai Station on the Tokyo Metro Nanboku Line and Toei Mita Line, roughly 25 minutes from Tokyo Station and 40 minutes from Haneda Airport.
Planning a home-visit consultation?
Share your dates and concerns on LINE or WhatsApp. We can hold consultation and procedure days before you buy your flights.
日本語での事前相談・帰国日程に合わせたスケジュール調整も承ります。
References
- Autologous fat grafting for cosmetic temporal augmentation: a systematic review. Frontiers in Surgery, 2024. https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2024.1410162/full
- Adipose-Derived Stem Cell, Stromal Vascular Fraction, and Regenerative Cell Enrichment in Fat Grafting: A Systematic Review of Safety and Functional Outcomes. PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12812246/
- Autologous Fat Grafting for Facial Rejuvenation. StatPearls, NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK557860/
- Advancing fat graft survival: from adipose-derived stem cell mechanisms to next-generation regenerative strategies. Frontiers in Cell and Developmental Biology, 2026. https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2026.1870729/full
- Sollitto et al. A Systematic Review of Platelet-Rich Plasma Versus Platelet-Rich Fibrin for Periorbital Rejuvenation. Journal of Cosmetic Dermatology, 2025. https://onlinelibrary.wiley.com/doi/10.1111/jocd.70524
- PubMed record for the above review. https://pubmed.ncbi.nlm.nih.gov/41190633/
Medical supervision: Dr. Jun Karibe, MD. Director, BIOTOPE CLINIC, Shirokanedai, Tokyo. This article is educational and does not substitute for individual consultation. Suitability, technique, and expected outcome for fat grafting and PRF depend on each patient’s assessment.
