MENT

19-Nor Anabolic Steroid | Experimental TRT Alternative

MENT (7-alpha-methyl-19-nortestosterone), also known as trestolone, is an experimental synthetic anabolic-androgenic steroid that belongs to the 19-nor (nandrolone) family. It was originally developed by the Population Council as a potential male hormonal contraceptive and androgen replacement therapy. MENT is estimated to be roughly 10 times more potent than testosterone on a milligram-per-milligram basis, which allows for effective use at very low doses. Unlike nandrolone, MENT does not cause the characteristic sexual dysfunction ('deca dick') associated with other 19-nor compounds, because it maintains sufficient androgenic activity in the central nervous system and sexual tissues. This property has generated significant interest in MENT as a potential standalone replacement for testosterone -- a compound that could serve as both the anabolic and androgenic base in hormone replacement protocols. MENT aromatizes, but its aromatization product is 7-alpha-methyl-estradiol rather than standard estradiol. This methylated estrogen behaves differently from estradiol in some respects, and aromatase inhibitors like anastrozole have reduced efficacy against it. Estrogen management on MENT is therefore considered more challenging than with testosterone. The acetate ester is the most widely available formulation and has an extremely short half-life of approximately 40 minutes, necessitating daily or twice-daily injections for stable blood levels. Research into longer-acting esters and delivery systems (including subdermal implants) is ongoing. MENT remains an investigational compound with no current FDA approval, though Phase 2 clinical trials for male contraception have been conducted.