Many may think their exposure to gluten is only in the form of foods, but this protein can be found in many beauty and personal care products as well. Because of gluten's stabilizing and emulsifying properties, it can be used as an ingredient in lipsticks, shampoos, lotions, and more.

Always be sure to check the manufacturer for a product's gluten status. Ingredients that contain gluten in personal care products are not always listed by their common name. Look out for wheat listed as triticum vulgare, barley listed as hordeum vulgare, and oatmeal listed as avena sativa.