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They are awaiting grant of a patent by the US Food and Drug Administration to be used for the treatment of melasma, freckles, lentigines and postinflammatory hyperpigmentation
Samples were analyzed on a Thermo-Finnigan Trace DSQ fast-scanning single-quadrupole mass spectrometer using electron impact ionization
Researchers have increasingly studied zeaxanthin alongside lutein for its antioxidant properties and potential role in supporting cognitive and visual function.52 54 In a recent six-month study of adults with high daily screen exposure, participants taking 10mg lutein and 2mg zeaxanthin demonstrated improvements in several objective measures of eye comfort and visual recovery, including tear production, tear-film stability, and photo-stress recovery.48 While the study focused on eye-related outcomes, it highlights one of the many ways these carotenoids may support modern lifestyles
AHK-Cu, by contrast, is entirely synthetic
Kurz MA, Boyer TD, Whalen R, Peterson TE, Harrison DG
Popular choices include Setria, NOW Foods, and Jarrow Formulas
