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Steroids / 19-nortestosterone derivatives

333 In the index

Trestolone MENT

An experimental synthetic hormone studied in human clinical trials as a male birth control option and possible testosterone treatment. Human trials confirm it effectively lowers sperm production at low doses, making it one of the more promising male-contraceptive candidates being developed, though it remains experimental.

Also known as MENT, 7-alpha-methyl-19-nortestosterone, 7alpha-Methyl-19-nortestosterone, 7alpha-Methylnandrolone, 19-Nor-methyltestosterone, 19-Nor-7alpha-methyltestosterone, MENTR, 7alpha-Methyl-3-oxo-4-estren-17beta-ol

Effects Build muscle Libido
Routes Injectable
Legal status Research chemical
WADA Banned at all times

3D Molecular Structure of C19H28O2

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  • Carbon
  • Hydrogen
  • Oxygen

Chemistry

Formula
C19H28O2
Molar mass
288.4
CAS
3764-87-2
PubChem CID
9838899
IUPAC name
(7R,8R,9S,10R,13S,14S,17S)-17-hydroxy-7,13-dimethyl-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-one
InChIKey
YSGQGNQWBLYHPE-CFUSNLFHSA-N

Reported dosing

User-reported

What has been reported in the literature and by users. This is a record of what is done, not a recommendation.

Typical dose Not yet approved; investigational
Reported range Phase I/II male-contraceptive trials: 8-16 mg/day (oral) or 30-120 mg every 3 months (implant)
Route Oral, transdermal gel, or subcutaneous implant (trial formulations)
Frequency Once daily (oral/gel) or per implant schedule
Duration Trial durations of 1-3 months (oral studies) to longer for implant studies

Also known as MENT; an experimental synthetic hormone studied in human clinical trials as a male contraceptive and possible testosterone treatment. Confirmed in trials to effectively lower sperm production, making it a promising contraceptive candidate, but it remains experimental and unapproved — self-sourced bodybuilding use is far outside any studied protocol.

Where this comes from Published Phase I/II clinical trial data (NIH/Population Council); user-reported/research-chemical vendor literature

There is no approved human dosing for this compound. The figures above are what users and vendors report, not what has been established as safe or effective. Treat them as a record of what is done, not as guidance.

Variants

Name Abbr Route Notes
Trestolone acetate MENT A Injectable Short ester MENT, extremely potent.
Trestolone enanthate MENT E Injectable Long ester MENT.