Primobolan 100mg/ml · Methenolone Enanthate · 10ml
Primobolan 100mg/ml (Methenolone Enanthate)
Primobolan, also known as Primo, is a long-acting injectable steroid used for lean muscle, cutting and body recomposition. It is especially popular with users who want steady quality gains, good muscle definition and a compound that fits well into both cutting and lean-mass cycles.
Each 1ml contains 100mg of Methenolone Enanthate. Each 10ml bottle contains 1,000mg total.
100mg/ml
10ml
1,000mg
A-Tech Laboratories
Dosage guide
Primobolan Dosage
300–400mg
Per week
400–600mg
Per week
600–800mg+
Per week
8–12+ weeks
Long-ester cycle
Primobolan works best as a longer cycle. For most men, 300–600mg per week is the practical range, while advanced users may use more depending on the rest of the cycle.
| Weekly Dose | Volume at 100mg/ml |
|---|---|
| 300mg | 3ml per week |
| 400mg | 4ml per week |
| 600mg | 6ml per week |
| 800mg | 8ml per week |
Lean muscle
Why Bodybuilders Use Primobolan
Primo is mainly used when the goal is lean muscle, definition and steady strength without making rapid scale-weight gain the main priority.
It is a very flexible injectable because it can be used during a cutting cycle, a recomp or a slower lean-bulking phase.
Long-acting injectable
Methenolone Enanthate
The injectable form of Primobolan uses the Enanthate ester, making it suitable for longer cycles and regular weekly dosing.
Methenolone Enanthate has a long history of human use as an injectable anabolic steroid, and human studies have demonstrated anabolic effects from weekly administration.[1]
Cutting cycles
Primobolan for Cutting
Primobolan is one of the most popular injectable steroids for a cutting cycle. It is commonly used when the goal is to hold muscle and strength while reducing body fat and improving overall definition.
A simple cutting cycle can be built around Testosterone + Primobolan. More experienced users often combine Primo with Anavar, Winstrol, Masteron or Clenbuterol.
For a short-ester cutting cycle, Testosterone Propionate also pairs well with Primobolan.
Lean bulking
Primobolan for Muscle Gain
Primobolan can also be used for bulking when the goal is quality muscle rather than the fastest possible increase in bodyweight.
Testosterone + Primobolan is the basic combination. For a stronger mass-focused cycle, Primo can also be stacked with Dianabol, DECA, Anadrol or Boldenone.
The advantage of using Primo in a bulking cycle is that it gives the cycle a strong lean-mass component while the other compounds can be selected according to how aggressive the user wants the cycle to be.
Cycle combinations
Best Steroids to Stack With Primobolan
| Goal | Primobolan Stack |
|---|---|
| Simple Lean Cycle | Testosterone + Primobolan |
| Cutting | Test P + Primobolan + Anavar |
| Dry Cutting | Testosterone + Primobolan + Masteron |
| Cutting + Fat Loss | Primobolan + Anavar or Winstrol + Clenbuterol |
| Lean Bulking | Testosterone + Primobolan + Boldenone |
| Bulking | Testosterone + Primobolan + DECA |
| Faster Mass Gain | Testosterone + Primobolan + Dianabol or Anadrol |
For most users, Testosterone + Primobolan is the easiest place to start. The other compound can then be chosen based on whether the priority is cutting, lean muscle or faster bulking.
Women
Primobolan Dosage for Women
A common Primobolan range for women is 50–100mg per week.
50mg/week: 0.5ml
100mg/week: 1ml
Primobolan is one of the injectable compounds sometimes selected by experienced female athletes because lower weekly doses are practical with the 100mg/ml concentration.
10ml bottle
How Long Will One Bottle Last?
300mg/week: about 3.3 weeks
400mg/week: about 2.5 weeks
600mg/week: about 1.7 weeks
800mg/week: about 1.25 weeks
After the cycle
PCT After Primobolan
For men coming off a Primobolan cycle, the standard Thai Anabolics PCT options are Clomid and Nolvadex.
| PCT Product | Weeks 1–2 | Weeks 3–4 |
|---|---|---|
| Clomid | 50mg/day | 25mg/day |
| Nolvadex | 40mg/day | 20mg/day |
See the full range of PCT products in Thailand →
Independent testing
Primobolan 100mg/ml Lab Report
The current A-Tech Methenolone Enanthate was independently tested by OnSet Biological Testing Laboratory.
OnSet Biological Testing Laboratory
26-051261
13 May 2026
PR1082
Methenolone Enanthate (HPLC)
105.24mg/ml
Specification: NLT 100mg/ml
Thailand delivery
Buy Primobolan 100mg/ml in Thailand
Primobolan / Methenolone Enanthate is supplied at 100mg/ml in a 10ml bottle. Thai Anabolics ships throughout Thailand, with current price and availability shown at the top of this page.
Sources
Primobolan Sources
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Shimodozono M, Kawahira K, Ogata A, et al.
Addition of an anabolic steroid to strength training promotes muscle strength in the nonparetic lower limb of poststroke hemiplegia patients.
International Journal of Neuroscience. 2010;120(9):617–624. The study used 100mg Methenolone Enanthate by intramuscular injection once weekly for 6 weeks alongside strength training.
View on PubMed -
Tauchen J, Jurášek M, Huml L, Rimpelová S.
Medicinal Use of Testosterone and Related Steroids Revisited.
Molecules. 2021;26(4):1032. Reviews Methenolone and distinguishes the injectable Enanthate ester from oral Methenolone Acetate.
View full text -
Notter G.
Treatment of disseminated carcinoma of the breast by metenolone enanthate.
Acta Radiologica. 1975;14(6):545–551. Historical human clinical use of injectable Methenolone Enanthate.
View on PubMed
Written by
Adrian
Adrian writes practical, experience-led content covering injectable steroids, cutting and bulking cycles, dosage, stacking and performance enhancement in Thailand. On this page, the focus is Primobolan dosage, cutting and lean-mass use, cycle combinations, PCT and independent batch testing.
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