Too much melanin can cause dark spots, acne scars, and uneven skin tone
Published veterinary research on the peptide contributed to understanding of its mechanisms and safety profile, though this animal data has not been directly replicated in human clinical trials
Reported effects include: Local discomfort at the injection site
Gene 533:469476 Alves E, Binienda Z, Carvalho F, Alves CJ, Fernandes E, de Lourdes Bastos M, Tavares MA, Summavielle T (2009) Acetyl-l-carnitine provides effective in vivo neuroprotection over 3,4-methylenedioximethamphetamine-induced mitochondrial neurotoxicity in the adolescent rat brain
They are not intended for human or animal consumption, and are not to be used for diagnostic, therapeutic, or any clinical purposes