C has a lot of different derivatives because it is very unstable So what the derivatives are, it just stabilizes it a little and it's not as potent Derma PGX Cream
as the pure L ascorbic acid but it's much better for people with sensitive skin, and then you know how sometimes Brightening products or vitamin C products may tingle a little (Fel yeah) This one doesn't tingle it up at all and I have minor eczema on my skin and it's not Inflaming it in any way.
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