Aluminum hydroxide is a stable form of aluminum and is found in nature as the mineral gibbsite. The compound has both basic and acidic properties. It has a solid white color, it has an odorless powder, and it’s density is 2.42 grams per cubic centimeter. Aluminum hydroxide melting point is three-hundred degrees Celsius, and it’s formula is Al(OH)3. It is a antacid and acts as a skin protectant. It is used in many sunscreens and helps reflect ultraviolet rays away from the skin. Instead of penetrating the skin, it creates a layer on the outside. Some sunscreens use aluminum hydroxide as a coating for titanium hydroxide. It prevents clumping when applying the sunscreen that has the compound in it and also helps allow an even application of sunscreen. It is also used in many cosmetic products including eye makeup products, cleansing products, lotions, hair conditioners, foundation, lipsticks, and moisturizer. In cosmetics, it functions as an opacifying agent. It is important because without it some sunscreens would not be as strong. Actually, an aluminium coating is recommended in the Guidelines for Natural Cosmetics of the BDIH. It has a total of three elements and seven atoms. Another use that aluminum hydroxide has is it treats the symptoms of too much stomach acid. Some examples of what it treats are: upset stomach, heartburn, and acid indigestion. In all, aluminum hydroxide is a compound and form of aluminum and is used in various cosmetics, sunscreens, and antacids.