Product Review: Which OTC Retinol Treatment is the Best?

Skin Care

Above: The mechanism of action of retinoids. Source: Nature. Editor’s Note:  There is an updated version of this post on, available on June 3, 2011. Retinoids are one of the most effective ingredients in skin care products today, running the gamut from increasing collagen production to decreasing the appearance of wrinkles. Although this 2001 Read more »