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Category: Vitamin C
Definition: The most common form of topical vitamin C. Pure form of this molecule is created by processing ascorbic acid that excludes the D-molecule
L-Ascorbic acid degrades a lot in terms of quality and efficiency when exposed to UV light and oxygen. Therefore, it is important to keep any product containing this ingredient in a confined space. Look also at the packaging! If a product has a clear bottle it might not be ideal.