His review work is useful for understanding why GHK-Cu peptide is discussed across dermatology, tissue-repair, and anti-aging research while also requiring careful interpretation of mechanistic and preclinical findings
Some use lower doses for longer periods
the peptide is hydrophilic and relatively large, so most of a topical dose does not reach viable dermis without delivery enhancement
Safety, tolerability, pharmacokinetics, and pharmacodynamics of a novel oral small molecule GLP-1 receptor agonist (HRS-7535) in healthy subjects a phase 1, randomized, double-blind, placebo-controlled, single- and multiple-ascending dose study
Lord CJ, Ashworth A
The reasoning is that bananas have high polyphenol oxidase activity, an enzyme that degrades polyphenols, so the banana cancels out what the blueberries are doing for you