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10 , e020237 (2021)

Products with a higher concentration can be irritating to the skin, and in very high doses can be toxic

Many people report achieving glowing skin naturally through glutathione supplementation, describing improvements in skin radiance and clarity that extend beyond simple pigmentation reduction

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The conclusion: given the low use concentrations involved, together with the negative repeated-dose toxicity, skin irritation and sensitisation, and genotoxicity findings, the Panel determined the available data support the safe use of these ingredients in cosmetic products