Fang EF, Hou Y, Palikaras K, Adriaanse BA, Kerr JS, Yang B, Lautrup S, Hasan-Olive MM, Caponio D, Dan X, Rocktschel P, Croteau DL, Akbari M, Greig NH, Fladby T, Nilsen H, Cader MZ, Mattson MP, Tavernarakis N, Bohr VA (2019) Mitophagy inhibits amyloid- and tau pathology and reverses cognitive deficits in models of Alzheimers disease
They have very different evidence bases and risk profiles
The primary concern involves shipping during extreme cold or heat, where freeze-thaw cycles could damage peptide integrity
you're taking a cocktail of substances, any one of which could be the problem
After reviewing the gene expression research extensively, I believe GHK-Cu represents one of the most underappreciated regenerative compounds available