Its level decreases with age (especially from the age of 45-50) and as the body's defence needs increase (immunity, liver detoxification, antioxidant defences...)
For users primarily seeking sexual benefits, PT-141 may be a better option due to its MC4R selectivity and fewer pigmentation side effects
also identified as SOD3)
Today it is available only by prescription, compounded by state-licensed 503A pharmacies or FDA-registered 503B outsourcing facilities, neither of which is independently reviewed or approved by the FDA as a finished drug product, most commonly prescribed off-label for adult GH decline or wellness/anti-aging use
Baxter SM, Lund LC, Andersen JH, Brix TH, Hegedus L, Hsieh MH, et al