Do Vitamin C and Retin A thicken skin "in vivo" and how long does it take?
Doctor Answers 1
The Thickening of Aging Thin Skin
Using the right products the effect can become visible in as little as 6-8 weeks in some while in others it takes a little longer.
By the way the science behind this concept is 20-30 years old.
Peter Aldea MD
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