Trestolone, also called MENT, is 7-alpha-methyl-19-nortestosterone, a synthetic 19-nor androgen. It is extremely potent by weight, builds muscle and strength strongly, and has been studied as a potential male contraceptive because it is so suppressive to natural testosterone production. It also aromatizes to a potent estrogen, methylestradiol, which makes estrogen management a real concern.
This is an educational tracking guide, not medical advice and not a recommendation. Trestolone is not an approved product for the uses discussed here. If someone has already decided to use it, the goal is honest tracking and harm reduction.
What it is
- A 19-nortestosterone (nandrolone-family) derivative with a 7-alpha-methyl group
- Injectable, commonly seen as a fast acetate ester
- Highly potent per milligram compared with testosterone
What it does
- Drives strong gains in muscle and strength
- Strongly suppresses the HPTA, so natural testosterone can shut down hard
- Aromatizes to a potent estrogen, which can cause estrogen-related side effects
- As a 19-nor, it can also raise prolactin and cause 19-nor-type sexual side effects
Typical protocol shape
- Described, not prescribed: the fast ester means frequent injections to keep levels steady
- Usually run with estrogen management on hand and a clear PCT or recovery plan, though recovery from such strong suppression can be slow
- Doses are intentionally omitted here
What to track daily
- Injection site condition and rotation
- Blood pressure
- Libido and erectile function, which 19-nors can impair
- Mood, nipple sensitivity, and any estrogen signs
What to track weekly
- Bodyweight, waist, and progress photos
- Blood pressure trend
- Subjective well-being, mood, and sleep
Bloodwork worth doing
- Estradiol, given strong aromatization to a potent estrogen
- Prolactin, important for 19-nor compounds
- Full lipid panel and blood pressure
- Haematocrit and haemoglobin
- Total and free testosterone to confirm suppression and track recovery
Realistic expectations
- Gains can be substantial, but so is the suppression
- Estrogen and prolactin issues are common and need active monitoring
- Recovery of natural production may take a long time
Common mistakes
- Ignoring prolactin because "it aromatizes like testosterone" - it does not behave that simply
- Underestimating how hard the shutdown is
- Neglecting estradiol control and then chasing side effects late
- Infrequent injections with a fast ester, causing swings
Safety notes
Trestolone is very potent, strongly suppressive, and aromatizes to a potent estrogen, with the added prolactin and sexual side effects typical of 19-nors. It is not an approved product for muscle building. Anyone using it should monitor estradiol, prolactin, lipids, haematocrit, and testosterone with regular bloodwork and ideally under medical supervision.
Peptid AI is an educational and self-tracking tool. Nothing in this post is medical advice. Doses mentioned reflect what is commonly reported in research literature — they are not recommendations. Always consult a qualified physician before starting, changing, or stopping any protocol.