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 .
Women who are pregnant or nursing should not consume more than 35 mg of niacin daily if taking a vitamin or a dietary supplement. Finally, if you use a niacinamide cream for the treatment of acne, dermatologists suggest that you start with a small amount of the cream on your skin so you can take note of any negative skin reactions. If you notice redness or peeling of the skin, you should discontinue use of the niacinamide cream and contact your skin care specialist.