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GHK is also one of the few sequences in this catalog that is genuinely endogenous rather than designed, which gives it a different kind of literature: older, broader, more dermatological and cosmetic than pharmacological, and considerably more variable in rigor
Immunity 35 , 871882 (2011)
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Oral precursors (NR, NMN) can raise NAD levels modestly in humans
A comparison between the sulfhydryl reductants tris(2-carboxyethyl)phosphine and dithiothreitol for use in protein biochemistry
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