Li S, Tan HY, Wang N, et al
Hruby and Mac Hadley (University of Arizona, USA) in 19871989 Original development program Competitive Technologies Palatin Technologies , later spun off into PT-141 (bremelanotide) Target: non-selective agonist of MC1R, MC3R, MC4R, MC5R (more potent than -MSH, longer half-life) Standard experimental dose in human tanning studies: 0.025 mg/kg subcutaneously (Dorr 1996) In Dorr 1996 (n=10): increase in skin melanin density measured by colorimetry by ~25 % after a 10-day course Main adverse effects in the preclinical literature: nausea, flushing, hyperpigmentation (including atypical nevi), priapism Approximately 100+ publications in PubMed
The problem is paying for them, especially if your insurance provider denies coverage or you have no insurance at all
Mass spectrometry is neither quick nor inexpensive
A small study published in Medical Science Monitor in 2011 shows a connection between low glutathione levels and autism spectrum disorders