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Home › Non-therapeutic oral use of a composition for whitening and/or lightening the skin comprising cystine and glutathione in a cystine-glutathione ratio ranging from 1.5 to 4

Non-therapeutic oral use of a composition for whitening and/or lightening the skin comprising cystine and glutathione in a cystine-glutathione ratio ranging from 1.5 to 4

US Patent 11969494 · Granted Apr 30, 2024

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