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Gene Expression: Research shows GHK-CU affects expression of over 4,000 genes, resetting many to a more youthful expression pattern
Exp Neurobiol 25:113 Rowland LP, Shneider NA (2001) Amyotrophic lateral sclerosis
Clinical studies and personal testimonials have consistently shown noticeable improvements in skin lightening when both are taken together
They are not approved by the FDA and are not drugs, foods, dietary supplements, or cosmetics
However, oral supplementation of L-arginine, the precursor for NO synthesis, has been shown to be largely ineffective at increasing NO synthesis and/or bioavailability for several reasons, which makes L-citrulline much more ideal for boosting levels of L-arginine and subsequently NO
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