It plays an essential role in the recycling of ATP and is widely used as a dietary supplement to build and maintain muscle mass
animal studies suggest it may support healing of gastric ulcers and damaged intestinal lining Preclinical models suggest it may help modulate inflammation, though this has not been established in controlled human trials Known risks and side effects: Because it is sold as an unregulated research chemical rather than a manufactured pharmaceutical, product purity and dosing accuracy cannot be verified, and the FDA has flagged potential impurities and manufacturing-quality concerns FDA's Category 2 determination specifically cited potential immune reactions and hypersensitivity as a safety concern User-reported (non-clinical-trial) effects include injection-site irritation, redness, or swelling, along with occasional headache, nausea, or lightheadedness, based on anecdotal reporting rather than controlled studies No long-term human safety data exists
Lack of FDA approval does not mean lack of activity
The two are frequently confused under the shared "melanotan" name, but they are not interchangeable and each is supplied separately as its own characterised reference compound
Preferred products and medical-exception process
13(1) : 812 Saibal K Biswas, Irfan Rahman Environmental toxicity, redox signaling and lung inflammation: the role of glutathione Mol Aspects Med Feb-Apr 2009