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Alpha hydroxy acids (AHAs) are chemical exfoliants designed to lighten pigmentation and boost radiance

Les taches pigmentaires et les irrgularits du teint sont des proccupations courantes qui touchent de nombreuses personnes cherchant parfaire leur routine beaut

Second, cystine is the primary imported form of cysteine 27 , but both cystine and cysteine are challenging to use due to rapid oxidation and insolubility 48

However, its important to note that most of these studies were conducted in vitro or in animal models, and more human clinical trials are needed to confirm these benefits

doi: 10.1371/journal.pone.0256009 99