The count is set at the consultation, usually one to three. Change is described as appearing over one to three months and lasting one to three years, but this is not a treatment with a standard count. The plan varies with purpose, processing scope and the amount of cells obtained.

It appears gradually over one to three months, because the growth factors delivered with the cells trigger a regenerative response whose results take time to accumulate. Evidence for the regenerative effect is still building, though, so it is best discussed after managing with laser or skin boosters and wanting more.

Minimal manipulation such as centrifugation is permitted at medical institutions. Cells expanded through culture are a drug requiring separate approval, and administering them without it is illegal. Confirm the processing scope before treatment, and reconsider if the clinic cannot answer clearly.