At picomolar to nanomolar concentrations, GHK-Cu stimulated the synthesis of collagen in skin fibroblasts, increased accumulation of total proteins, glycosaminoglycans (in a biphasic curve) and DNA in the dermal wounds in rats
On the same date, FDA also republished its interim 503A Bulks List, indicating its intent to remove 12 peptides from its Category 2 list (Bulk Drug Substances that Raise Significant Safety Concerns)
Duration: Preclinical studies have lasted about 4 weeks on average
doi: 10.1038/srep10637 (2015)
Each peptide carries default vial sizes, dose ranges, and notes on the correct diluent to reduce injection site reactions
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