Different types of skin

Whyatt

Established Member
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One important factor when using topical treatment is, of course, the penetration of the active ingredient(s).
Earlier we talked about hydration of the skin, my question now is, could a weak topical-treatment-patient
have a very non-absorbent skin? Or is the active ingredient and it's vehicle small to penetrate even the tightest
of skins?
 
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