US$ 23.17
diy glutathione serum Super Skin Brightening, Anti Aging with Hyaluronic Acid (2.3oz). : Beauty & Personal Care diy glutathione serum Morning vs.
Description
Most recipes, as expected, use ascorbic acid, because it is the most well known form of vitamin C
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Ingredients aka why this DIY face serum has anti-aging properties

For a quick summary, see this quote from one study : RESULTS: As one of the most powerful antioxidants in the skin, vitamin C has been shown to protect against photoaging, ultraviolet-induced immunosuppression, and photocarcinogenesis

I apply it on damp skin immediately after a shower
I try to add it to most of my oil-based formulations
