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Sources & references BioMed Research International GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration Pickart L, Vasquez-Soltero JM, Margolina A 2015 DOI: 10.1155/2015/648108 PMID: 26236730 Read on PubMed Oxidative Medicine and Cellular Longevity The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging Pickart L, Vasquez-Soltero JM, Margolina A 2012 DOI: 10.1155/2012/324832 PMID: 22666519 Read on PubMed Journal of Biomaterials Science, Polymer Edition The human tri-peptide GHK and tissue remodeling Pickart L 2008 DOI: 10.1163/156856208784909435 PMID: 18644225 Read on PubMed Brain Sciences The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Pickart L, Vasquez-Soltero JM, Margolina A 2017 DOI: 10.3390/brainsci7020020 PMID: 28212278 Read on PubMed FEBS Letters Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ Maquart FX, Pickart L, Laurent M, et al

For more details, see the updated reviews of B Vitamin Supplements & Energy Drinks and Protein Powders, as some of these products contain L-carnitine

Ortiz A, Minguet C, Gonzalo R, et al

Most other research peptides in this class only act on one or two

Only qualified and licensed professionals should handle these products

You must mix them with bacteriostatic water first