While What Is Peptide Therapy (article not yet published) will delve deeper into the topic, the basic premise is that peptides can be administered via topical solutions, injections, or oral supplements to trigger cellular responses that help achieve therapeutic goals
169(8): 16721692 Curcumin: an orally bioavailable blocker of TNF and other pro-inflammatory biomarkers Bharat B Aggarwal, Subash C Gupta, and Bokyung Sung ~ PLoS One
Cellular analysis using flow cytometry suggested that GHK may reduce overall reactive oxygen species levels under oxidative challenge conditions
They are not a shortcut around effort, and no injectable removes the need for reasonable eating and movement
Any off-label, personal, or clinical use is outside the intended scope
GHK-Cu vs other peptides for hair GHK-Cu isn't the only peptide targeting hair growth