Hi-Tech Pharmaceuticals Primobolan is a three-compound cutting and lean mass prohormone — a 50mg Cyclosome-delivered blend combining 1-Androstene-3b-ol-17-one (1-ANDRO, the 1-Testosterone precursor), 3β-Acetoxyandrost-5-en-17-one (DHEA Acetate, a fast-acting testosterone precursor), and 6-keto-(25R)-Spirost-5-en-3β-diol (a plant-derived spirostanol for protein synthesis and muscle recovery) in a single tablet dosed three times daily. Hi-Tech describes Primobolan as combining the attributes of their 1-Testosterone and Winstrol products — the clean, dry, non-aromatizing anabolic profile of 1-ANDRO with a testosterone base and plant anabolic support — into one formula optimized for cutting cycles, lean muscle preservation during caloric restriction, and the hard, defined look associated with summer competition prep. 90 tablets per container — 30-day supply at 3 tablets daily. For experienced adult men 21 years and older only. Not for women. PCT required. Not for tested athletes. California Prop 65 Warning applies.†
IMPORTANT: Hi-Tech Pharmaceuticals Primobolan is a legal prohormone dietary supplement. It is not pharmaceutical methenolone (injectable or oral Primobolan/Primobolan Depot), which is a Schedule III controlled substance. PCT required after cycle. Not for persons under 21. Not for women.
Supplement Facts — Hi-Tech Pharmaceuticals Primobolan (Per 1 Tablet / 90 Tablets / 30-Day Supply)
50mg Proprietary Prohormone and Anabolic Blend (Cyclosome Delivery)

1-Androstene-3b-ol-17-one (1-ANDRO / 1-DHEA) — converts to 1-Testosterone; 200:100 anabolic/androgenic ratio; non-aromatizing; no estrogen or DHT conversion; promotes dry lean mass and strength

3β-Acetoxyandrost-5-en-17-one (DHEA Acetate / Prasterone Acetate) — fast-acting acetate ester of DHEA; converts to testosterone via androstenedione/androstenediol pathway; supports size, strength, and anabolic environment during cut

6-keto-(25R)-Spirost-5-en-3β-diol — plant-derived spirostanol saponin; promotes protein synthesis and muscle recovery through non-hormonal pathways; does not convert to sex hormones
Other Ingredients: Microcrystalline Cellulose, Phosphatidylcholine 75%, Hydroxypropyl Beta Cyclodextrin (HPBCD), Medium Chain Triglycerides (MCT), Phytosterol, Stearic Acid, Magnesium Stearate, Starch, Silica
Delivery: Cyclosome Technology (HPBCD liposomal inclusion complex + Phosphatidylcholine 75% + MCT)
90 tablets per container — 30-day supply at 1 tablet 3x daily (3 tablets/day)
Take 1 tablet 3 times per day with or without food. Do not exceed 6 tablets per day.
Cycle length: 30-60 days (1-2 bottles). Take equal time off following cycle.
PCT required — Hi-Tech recommends Arimiplex
On-cycle support recommended — Liver Rx or Gear Support
For adult men 21+ only. Not for women.
Will cause a positive drug test. Not for tested athletes.
California Prop 65 Warning applies.
The Name and the Design Intent
Pharmaceutical Primobolan (methenolone acetate and methenolone enanthate) is a synthetic anabolic steroid developed in the 1960s, known for producing lean, dry, quality muscle gains with minimal estrogenic activity — one of the few anabolic steroids historically used in cutting cycles specifically because it does not aromatize and does not produce the water retention and estrogenic side effects associated with testosterone-based steroids. It was famously associated with aesthetic-focused bodybuilders and physique athletes who prioritized muscle quality over mass. Hi-Tech Pharmaceuticals’ Primobolan supplement uses the name to communicate this same design intent: a cutting-optimized, dry, non-bloating anabolic agent focused on lean muscle preservation and physique quality during caloric restriction.†
The supplement contains no methenolone — pharmaceutical Primobolan is a Schedule III controlled substance requiring a prescription. Hi-Tech’s formula achieves the cutting cycle profile through legal DHEA-derived prohormones and a plant anabolic compound, positioning the product at the intersection of 1-Testosterone’s dry 1-ANDRO profile and a testosterone base from DHEA Acetate. The “1-Testosterone + Winstrol combined” framing Hi-Tech uses in their marketing describes the combined effect profile — the clean gains and lean muscle focus of 1-Testosterone alongside a hardening and definition emphasis — not a literal combination of those two products’ identical ingredients.†
The Three-Compound Formula
1-Androstene-3b-ol-17-one (1-ANDRO) — The Dry Anabolic Foundation
1-Androstene-3b-ol-17-one (1-DHEA / 1-Androstenolone) is the 1-ene isomer of DHEA — dehydrogenated between C1 and C2, giving it a double bond at the first position. This structural feature is mechanistically decisive: 1-ene dehydrogenated steroids show no substrate activity for the aromatase enzyme, meaning 1-DHEA is completely non-estrogenic from any conversion pathway. It converts via a two-step enzymatic process to 3β-hydroxy-5α-androst-1-en-17-one (1-Testo