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Each vial is engineered for reproducible bench behaviour: tight purity tolerance, low aggregation under standard BAC reconstitution, and a CoA tied to the batch number printed on the label

The science is actually quite fascinating: your skin produces melanin (the pigment that gives skin its colour), and sometimes this process goes a bit overboard, especially after sun exposure or hormonal changes
Haigis MC, Mostoslavsky R, Haigis KM, Fahie K, Christodoulou DC, Murphy AJ, Valenzuela DM, Yancopoulos GD, Karow M, Blander G, Wolberger C, Prolla TA, Weindruch R, Alt FW, Guarente L

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