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GHK-Cu topical serum is the ready-to-apply format of glycyl-L-histidyl-L-lysine copper the same tripeptide-copper complex used in decades of published skin research, pre-formulated for direct dermal application rather than reconstitution and injection
Injectable Peptides Most peptides are poorly absorbed when taken orally because digestive enzymes and stomach acid break them down before they can reach the bloodstream
10.1016/j.nlm.2017.09.002 Summary Keywords neurosteroid, memory, anxiety, depression, schizophrenia, allopregnanolone, pregnenolone sulfate, Alzheimer's disease Citation Ratner MH, Kumaresan V and Farb DH (2019) Neurosteroid Actions in Memory and Neurologic/Neuropsychiatric Disorders
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