Alpha Hydroxy Acid
is a toxic agent (many others) sometime used tto induce skin injury & shedding (often termed a peel; like sunburn
) with the "hoped for" goal that the skin below appearing softer, fewer lines, perhaps fewer variations in pigmentation.
Thus it is always trial & error "artistry"; no guarantees or clear rules; which may work for one may not for another. Yet, why would you want to damage your skin?