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Here are some of the most notable findings to date: Nootropic effects in fatigued subjects: Researchers examined the cognitive effects of intranasal Semax on healthy individuals following an 8-hour work shift

Proline metabolism and cancer: emerging links to glutamine and collagen

Journal of Colloid and Interface Science 650:1879-1890

Give any new protocol 6 months before deciding it isn't working

Patients received standard therapy with a GH dose identical to each subject's prestudy therapy, with median 33 (range 1346) mcg/kg/d

What science exists for GHK-Cu is all rather positive (a 2018 analysis of the science concluded the peptides actions appear to be health positive, saying it boosts collagen, improves tissue repair and has powerful cell-protective actions, including multiple anti-cancer and anti-inflammatory actions)