Description
Masteron Enanthate 150 mg/mL (Drostanolone Enanthate) | 10 mL or 20 mL
What you are buying and why lifters choose it
Masteron Enanthate is drostanolone with a long enanthate ester. Users choose it for a dry, hard finish, firm pumps, and steady strength with simple estrogen management. Split the weekly total into two shots to keep levels smooth.
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Product overview table
| Attribute | Detail |
|---|---|
| Compound | Drostanolone Enanthate |
| Also known as | Masteron Enanthate, Mast E |
| Strength | 150 mg/mL |
| Formats | 10 mL or 20 mL multi-dose vial |
| Class | Injectable DHT-derived anabolic, non-aromatizing |
| Ester | Enanthate, medium to long acting |
| Approx half-life | 5 to 7 days |
| Aromatization | None |
| Progestin activity | None meaningful |
| Primary goals | Hardness, dryness, strength retention, mild anti-estrogenic effect |
| Injection frequency | 2 times per week |
| Typical partners | Measured testosterone base; EQ or Primo for long clean phases |
| Kick-in window | Weeks 2 to 4 for most users |
| PCT | Required after long-ester clearance |
What Masteron Enanthate does in the gym and in the mirror
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Tightens the look. Separation and definition show best with lower body fat.
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Holds strength while calories drop.
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Helps keep estrogen management simple with a Test base.
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Pumps feel crisp without big water swings.
How long Masteron Enanthate stays in the system
With a 5–7 day half-life, activity lingers roughly two weeks after the final shot. Plan PCT around this window.
Dosing principles
Mast E rewards leanness, steady habits, and measured totals.
Common weekly ranges
| User | Conservative start | Common range | Upper end for advanced users* |
|---|---|---|---|
| Men | 300 mg per week | 300–600 mg per week | 700–800 mg per week |
| Women | 25 mg per week | 25–50 mg per week | 75–100 mg per week |
*Upper-end values reflect community practice, not a recommendation.
Injection rhythm with 150 mg/mL
How often to inject Masteron Enanthate
Two shots weekly suit the ester well.
| Weekly total | Split dose (mg) | Volume per shot at 150 mg/mL |
|---|---|---|
| 300 mg | 150 mg on Mon / Thu | 1.0 mL each |
| 400 mg | 200 mg on Mon / Thu | 1.33 mL each |
| 500 mg | 250 mg on Mon / Thu | 1.67 mL each |
| 600 mg | 300 mg on Mon / Thu | 2.0 mL each |
Site tips
Rotate gluteal and ventrogluteal sites. Warm the vial and push slowly for comfort. Supplies: 3 mL Syringe and Alcohol Swabs.
Example schedules
12-week cutting or recomposition plan
| Week | Masteron E | Testosterone base | Diet and cardio focus |
|---|---|---|---|
| 1–2 | 300 mg per week | Testosterone Enanthate 200–250 mg per week | Set calories, protein 2.0 g/kg, steps target |
| 3–8 | 400–500 mg per week | Test E 250–300 mg per week | Steady deficit, waist and photos each week |
| 9–10 | 400 mg per week | Test E 200–250 mg per week | Light cardio bump, sleep dialed |
| 11–12 | 300 mg per week | Test E 200 mg per week | Exit ramp toward clearance |
10-week lean mass with a clean finish
| Week | Masteron E | Testosterone base | Notes |
|---|---|---|---|
| 1–4 | 0 mg | Test E 300–400 mg per week | Build food and strength |
| 5–10 | 300–400 mg per week | Test E 300 mg per week | Add Mast E to harden while holding gains |
Estrogen management the adult way
Mast E does not aromatize. With a Test base, many users need little or no AI at moderate totals. Use labs and symptoms to guide any move. When support is required, keep doses conservative and retest in 10–14 days:
