How old: Old enough to have skin problems. It is mostly used in adult and middle ages.
Answered 2/2/2013
5.7k views
It depends...: ...On the reason you need one. Some are formulated for acne, which is common in the teens and twenties. Ones that are formulated to treat wrinkles are for an older crowd, of course!
Answered 5/14/2013
5.1k views
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