Stem cell subcutaneous injection in Japan falls under regulatory handling that depends on what is actually injected. Preparations containing living cells are treated differently from products derived from cells but not containing them. Asking which category applies is a practical way to understand what is being offered.
Check also who performs the injection and what their background is. In aesthetic contexts the injector’s technique affects outcome and comfort considerably. Ask how many times the clinic has performed this specific treatment and whether the same practitioner handles both consultation and procedure.
Documentation matters for anyone continuing care elsewhere. Find out what records you will receive, whether they are available in English, and what detail they include about the preparation used. Should any issue arise after you return home, a physician who can read exactly what was administered is in a far better position to help. Confirm that the clinic can be contacted directly by that physician if clarification is needed, rather than only through you. Ask also how long the clinic retains records, since questions sometimes arise months later.
