Makeup Guru

COLLOIDAL OATMEAL/(kuh-loid-l oht-meel)/n./ 1. Rolled oats ground into an extremely fine powder, also known by the name Avena sativa L.; / 2. Inedible and typically added to warm bath water or a variety of emollients, this all-natural substance coats, moisturizes, and relieves itchy, irritated, dry skin, e.g., “Skip the sliced bananas and brown sugar; colloidal oatmeal satiates rough, parched skin all on its own.”

Try It: Nature’s Gate Colloidal Oatmeal Moisturizing Lotion, $10, www.drugstore.com.

Ingredients: Oatmeal