Sodium carbonate (also known as washing soda, soda ash and soda crystals), Na 2 CO 3, is the water-soluble sodium salt of carbonic acid.
7. Improves Skin Function. Niacin helps protect skin cells from sun damage, whether it's used orally or applied to the skin in lotions . And recent research suggests it may help prevent some types of skin cancer . A 2015 study found that taking 500 mg of nicotinamide (a form of niacin) twice daily reduced rates of non-melanoma skin cancer among people at a high risk of skin cancer .
Studies also suggest that niacinamide skin care products can reduce the signs and symptoms of severe acne or rosacea by reducing the inflammation of the skin. Studies of the benefits of niacinamide creams also suggest that this chemical compound may increase the effectiveness of sunscreen in protecting cells against free radicals.