The evidence is in the pudding, or the sales figures, as the expression goes. Rodan and fields is the best-selling cosmetics brand in the United States, indicating that the firm is doing something right. When you look at the ingredients in many of the products, you'll see retinol, the gold standard for addressing fine lines and wrinkles and stimulating cell turnover. The brand employs tried-and-true chemicals like alpha-hydroxy acid to smooth and soften skin, as well as kojic acid, a natural brightening agent, for skin lightening and brightening. Rodan and fields doesn't use mysterious components in their products; instead, they use compounds that have been shown to benefit the skin.