If I want to do deep skin rejuvenating, is it necessary to use the stronger stuff in intense but shorter durations, or can I achieve the same results just over a longer period by using the lighter stuff?

This message has been edited. Last edited by: SkinBiologyWebmaster,

The stronger products work better but always start them lightly until your skin adjusts.

Also, alternately use a hydroxy acid.

Daily supplements also help.
MSM 2 grams
Vitamin C 1 gram
Flaxseed oil - 5 grams