The honest reading of the literature is that response, where it has been reported in small studies, is gradual, variable between individuals, dependent on formulation, and often confounded by the presence of other actives
Nabi R, Alvi SS, Shah A, Chaturvedi CP, Iqbal D, Ahmad S, et al
Song M, Xiong J, Wang Y et al (2012) VIP enhances phagocytosis of fibrillar beta-amyloid by microglia and attenuates amyloid deposition in the brain of APP/PS1 mice
Over-the-counter (OTC) topical skin care serums that contain GHK-Cu peptidesometimes referred to on the ingredients list as copper tripeptide-1 or copper tripeptide complexoften include more than just one peptide to ensure as many peptide skin benefits as possible, including stimulating fibroblasts to get busy making more collagen or blocking enzymes that cause collagen breakdown
The injections are subcutaneous, meaning they are just under the skin and create a small bubble or wheal at the site
Molecules containing fewer than 50 amino acids are called peptides