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 increases HDL by an average of 7 mg/dL, and usually lowers LDL and triglycerides as well. Most people taking niacin experience flushing, an uncomfortable feeling of heat, itching, or tingling in the skin. Other side effects can include gastrointestinal, muscle, and liver problems.