// 7α-Methyl-19-Nortestosterone · 650:250 Ratio · Most Potent Injectable AAS

MENTTrestolone Acetate — Most Potent Injectable AAS Research Reference by QSC Peptides

MENT (Trestolone Acetate) — 7α-methyl-19-nortestosterone — has the highest reported anabolic rating of any injectable AAS at approximately 650:250 anabolic:androgenic. Does not undergo 5α-reduction to an inactive metabolite. Potent progestin. Aromatizes to 7α-methyl-estradiol. QSC Peptides offers 50mg/mL in 10-vial kits — ≥99% purity, free USA shipping.

Buy MENT 50mg/mL — $530 → All QSC Steroids
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// Why MENT is Unique

Pharmacological Profile

MENT (Trestolone Acetate) is 7α-methyl-19-nortestosterone acetate — combining the 19-nor modification (like nandrolone and trenbolone) with a 7α-methyl group that provides additional metabolic resistance. The result is the most anabolically potent injectable AAS in the QSC Peptides catalog.

No 5α-Reduction to Inactive Metabolite

Unlike nandrolone (which 5α-reduces to inactive DHN), MENT undergoes 5α-reduction to 7α-methyl-DHN — which retains significant AR binding affinity. This prevents the androgenic attenuation seen with nandrolone, explaining why MENT's androgenic ratio (~250) is much higher than nandrolone's (~37) despite both being 19-nor compounds.

Aromatization to 7α-Methyl-Estradiol

MENT aromatizes via CYP19A1 to 7α-methyl-estradiol — which has higher estrogen receptor binding affinity than native estradiol and is resistant to hepatic degradation. This unique estrogenic metabolite makes MENT research valuable for studying novel estrogenic profiles.

Spermatogenic Suppression Research

MENT has been specifically studied as a male contraceptive research compound due to its exceptionally potent suppression of spermatogenesis via combined AR and PR effects at the hypothalamic-pituitary level, with potential for testosterone replacement via its own androgenic/estrogenic activity.

// MENT vs Other AAS — Anabolic Rating

MENT
650 anabolic
Trenbolone
500
Anavar
322
Nandrolone
125
Testosterone
100

Compound Profile

Class7α-Me-19-nortestosterone
Anabolic:Androgenic~650:250
vs Testosterone6.5× anabolic
5α-Reduction→ 7α-Me-DHN (active)
Aromatization→ 7α-Me-Estradiol
Progestin ActivityStrong (PR agonist)
Acetate t½~1–2 days
QSC Purity≥99%
Concentration50mg/mL
Price$530 / 10-vial kit
// Research Applications

MENT Research Applications

  • Maximum anabolic potency studies: MENT as the highest-rated injectable AAS for maximum-response AR activation models
  • Male contraception research: MENT as a studied male contraceptive candidate — spermatogenesis suppression via HPTA + direct testicular effects
  • 7α-methyl-estradiol pharmacology: Unique estrogenic metabolite with higher ER affinity than estradiol — novel ER biology research
  • 19-nor class comparison: MENT vs Nandrolone vs Trenbolone — effects of 7α-methylation on potency, 5α-reduction, and progestin activity
  • AR binding kinetics: Ultra-high-affinity AR binding for receptor competition assays and Bmax studies
  • Testosterone replacement research: MENT's dual androgenic/estrogenic activity makes it a model compound for studying combined hormone replacement without exogenous estrogen
// QSC Peptides Product

Buy MENT from QSC Peptides

MENT
MENT Trestolone Acetate 50mg/mL | 10-Vial
100ml Total · Most Potent Injectable AAS

QSC Peptides · 650:250 ratio · ~1-2 day t½

≥99% Pure · COA
Trenbolone
Most Potent 19-nor
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Nandrolone
19-nor DECA/NPP
View reference →
Testosterone
Reference Compound
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Anavar
High Anabolic:Androgenic
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PCT Compounds
HPTA Research
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