No doubt you've seen the star-studded ads for Proactiv. Justin Bieber is not the only young celebrity pushing the product. Avril Lavigne, Julianne Hough, and Katy Perry all are singing its praises.

Consumer Reports tested Proactiv along with two other acne treatments. Proactiv, a three-step treatment, costs around $40 for a two-month supply. Acne-Free, also a three-step treatment, goes for half, ...

We've all seen those adverts, where Jessica Simpson talks about how she once had bad skin (yeah right!), but started using Proactiv and now she has the skin of an angel. I am always sceptical about ...