Ascorbic acid, the scientific name for vitamin C, supports immune function. Eating ascorbic acid-rich foods helps your immune system work properly.

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Azelaic acid and vitamin C both reduce dark patches and blemishes and help brighten skin. Azelaic acid also reduces skin inflammation and is approved to treat a type of rosacea. It can also help ...

“Vitamin C is a powerful antioxidant that plays several important roles in skin health,” says Paula Brezavscek, PA-C, a board-certified physician assistant. “It helps protect the skin from ...