glutathione vitamin serum No.5 Concentrated Serum, 1.01 fl oz (30 ml) Get numbuzin No.5+ Vitamin Concentrated

Enriched with Centella Asiatica + Hyaluronic Acid, they also work to soothe and deeply hydrate the skin while maintaining its natural balance, making them suitable even for sensitive skin, especially as they are clinically proven to be low-irritation

Glutathione brightens while Vitamin C enhances its absorption by 40%

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Since the formation of stable metal-thiolate complexes precludes the direct thiol-disulfide redox potential measurements by usual electrochemical techniques, an indirect method had to be elaborated