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 .
Niacin and niacinamide are LIKELY SAFE for most people when taken by mouth. A common minor side effect of niacin is a flushing reaction. This might cause burning, tingling, itching, and redness of the face, arms, and chest, as well as headaches. Starting with small doses of niacin and taking 325 mg of aspirin before each dose of niacin will help reduce the flushing reaction.