3 votes
Accepted

Acne underneath skin

Currently, the only real way to "get rid of acne once and for all" is through the use of the prescription medication isotretinoin. It works to reduce sebum production and thusly decreases the ...
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2 votes

How can 5% and 10% concentrations of benzoyl peroxide, be less effective than the 2.5%?

You are reading the outcome incorrectly, the 5% and 10% formulations are not less effective, they are equally effective. The specific text is The 2.5% benzoyl peroxide formulation was more effective ...
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1 vote

Why are retinoids applied only after washing the face?

Both retinoids and benzoyl peroxide must be absorbed by the skin to do their work. If you have make-up on or oily skin etc. this can be a barrier to absorption so must be cleaned off. The cleaner your ...
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