Anabolic steroidAndrogenInjectableBoldenone ester

Boldenone Propionate

Also known as Bold Prop · EQ Propionate

Written by enwyReviewed 15 Jul 20261 sources0 comments

A short-ester version of boldenone, the anabolic behind Equipoise (EQ). The propionate chain gives a fast, short release requiring frequent injection, unlike the long-acting undecylenate. Effects mirror boldenone: steady lean gains, appetite and red-cell stimulation with modest estrogenic activity. Ester-specific data are minimal.

01 Overview

Boldenone propionate is boldenone (1-dehydrotestosterone) esterified with propionic acid, producing a short-acting version of the compound normally sold as boldenone undecylenate (Equipoise). The propionate chain shortens the release window dramatically, so it must be injected every day or two rather than weekly.

The active hormone is boldenone regardless of ester, so the profile matches EQ: slow but quality lean-mass gains, notable increases in appetite and red blood cell count, and only moderate estrogenic activity (boldenone aromatises at roughly half the rate of testosterone). This ester is uncommon and essentially unstudied in humans, so ratings are low and lean observational/anecdotal.

02 Mechanism

Esterases cleave the propionate ester to release boldenone, which binds the androgen receptor. Boldenone aromatises to a lesser degree than testosterone and strongly stimulates erythropoiesis and appetite.

03 Dosing

Tier	Dose	Route	Notes
Common (boldenone-equivalent)	300–500 mg/wk	IM	Short ester; split into frequent injections (EOD or daily).

Ester comparison

Ester	Half-life	Injection freq.	Testosterone by mass

04 Effects

Effect	Magnitude	Evidence
Increased lean massBoldenone produces gradual quality gains over longer cycles.	slow, steady	Observational
Increased appetiteFrequently reported appetite stimulation, useful in a bulk.		Anecdotal
Increased red blood cellsBoldenone notably raises haematocrit, aiding endurance.		Observational

05 Side effects

Effect	Severity	Frequency	Evidence
HPTA suppressionSuppresses natural testosterone and spermatogenesis.	Severe	Universal	Clinical
ErythrocytosisBoldenone raises haematocrit markedly, increasing viscosity.	Moderate	Common with boldenone	Observational
Injection-site painThe short propionate ester commonly stings post-injection.	Mild	Common	Anecdotal

06 Legal status

United States

Schedule III controlled substance

as of Jan 2026

United Kingdom

Class C controlled drug

as of Jan 2026

07 References

Boldenone pharmacology and anabolic profileVeterinary/sports pharmacology literature

08 Discussion0 comments

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This page is reference information, not medical advice. Doses and protocols are documented as they appear in the clinical literature and in practice — describing them is not a recommendation to use them. Countermeasures listed here are not a substitute for a physician. Legal status varies by jurisdiction and changes.