“Vitamin C, specifically L-ascorbic acid, is highly susceptible to oxidation when exposed to air and light, breaking down ...

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Vitamin C is a skincare powerhouse known for its ability to brighten the complexion, reduce hyperpigmentation, and boost ...

Of all the vitamin-C options, our experts generally recommend looking for serums that contain ascorbic acid, also known as L-ascorbic acid, which is the most active and purest form of vitamin C.

The key is to look for the type of vitamin C being used. 'L-ascorbic acid or ascorbic acid is more stable than others and will maintain its strength longer.' As you probably know, there are ...

For example, L-ascorbic acid, a form of vitamin C found in many skin care products, degrades when it is exposed to heat, a high pH or sunlight, which can happen during transit and storage.