Glycerin, or glycerol, is derived from plant-based oils. It also occurs naturally in fermented goods, such as beer, wine, and bread. This ingredient was “accidentally” discovered in 1779 by a Swedish ...

I am a dark-skinned girl and while I simply love my complexion, there are times when I lose that glow, making me look dull and tired. While the sun plays havoc with my skin, the humid weather, ...