Drostanolone Enanthate

Mast E · Masteron E · Masteron Enanthate

Anabolic Steroid aas IM Animal Data / Community

Half-life

5 days

Time to Peak

2 days

Steady State

~25 days

Bioavailability

100%

Dose Range

200–400 mg

Frequency

2x weekly

Overview

Long-acting drostanolone ester. No pharmaceutical product has ever existed — exclusively UGL. PK estimated entirely by ester analogy (enanthate ester class behavior). Same parent compound as Masteron propionate but allows less frequent dosing (2x/week). Harm reduction: Same profile as drostanolone propionate. Monitor lipid panel, hair loss risk, and ensure estrogen is not suppressed too low.

Mechanism of Action

DHT derivative (2alpha-methyldihydrotestosterone) with enanthate ester for extended release. Cannot aromatize to estrogen.

Dosing Information

Route	Dose Range	Half-life	Tmax	Frequency
Intramuscular (IM)	200–400 mg	5 days	2 days	2x weekly, Weekly

Storage & Handling

Room temperature — Oil-based injectable (UGL only).

Used in Regimens

1 regimen

Test/Masteron "Feel Good" Stack

Testosterone at TRT or moderate blast dose paired with Drostanolone (Masteron) for its aromatase-inhibiting properties and dry, lean aesthetic effect. Masteron does not aromatize — many users add 100–200mg/week Mast to their cruise dose instead of an AI. Produces the "feel good" effect: dry, full, confident without water retention.

Masteron E 200–400mg/week. Mast E preferred for longer cycles (2x/week inject).

16wk Harm Reduction trt aas

Ancillary

Data Sources

ester analogy Enanthate ester analogy — based on testosterone enanthate release kinetics

Related Tools

Medication Level Plotter

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Dose Calculator

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Split Dose Calculator

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