DHB

guinea pig

Also seen as: Dihydroboldenone, 1-Testosterone

The Dose Guy’s verdict
Sep 1, 2026
2 sources

DHB delivers real lean gains and real strength without water or estrogen conversion, and every person who has run it will tell you about the injection pain in the same breath. There are no human trials. Zero. What you have is a pharmacologically potent androgen confirmed in receptor and animal work, a community that has put years of mileage on it, and post-injection pain bad enough that it filters out everyone who is not committed. If you have run boldenone and want something stronger without adding trenbolone, DHB is what people reach for, eyes open.

Would I take it?Caution, strong but uncharted.

What it is

The 5-alpha-reduced sibling of boldenone. If boldenone is the slow, mild endurance injectable, DHB is what happens when you strip the aromatization and crank up the androgenic potency. It does not convert to estrogen, does not cause water retention, and binds the androgen receptor hard enough that the lean-tissue signal is strong even at moderate doses. The trade is that it is one of the most painful compounds to inject, infamous for post-injection pain that can last days and leave the muscle site swollen and sore.

DHB circulated as an over-the-counter prohormone in the early 2000s before the steroid ban pulled it. It resurfaced as an underground injectable, usually as the cypionate ester, and has stayed a niche favorite for experienced users who want trenbolone-grade recomposition effects without trenbolone’s mental and cardiovascular cost.

What the research shows

No human trials. Zero. Everything below is animal or in-vitro work. Read it as “interesting,” not “evidence it works in you.”

There is no human trial of DHB for any endpoint. The published literature is receptor work, rat tissue studies, horse detection pharmacology, and anti-doping method development. What it confirms is that DHB is real and potent:

1-Testosterone bound the androgen receptor with high selectivity and, at equimolar doses in rats, matched testosterone propionate for growth of muscle and reproductive tissue while increasing liver weight, unlike testosterone propionate.Toxicol Lett 2006 · rat and in vitro
After one man took a 100 mg capsule of the oral precursor 1-androsterone, a characteristic urinary metabolite remained detectable for up to nine days, confirming in-vivo conversion to 1-testosterone. This is the precursor’s detection window, not injectable DHB’s.Steroids 2011 · single volunteer
No randomized or controlled human trial of DHB for efficacy or safety exists. What the community has learned by running it is all the human evidence that exists.as of Aug 2026

Realistic protocols

The injection pain is the thing you are managing on DHB. The cypionate ester is what most sources carry, and it holds at concentrations around 100 to 200 mg/mL. Higher concentrations crash more easily and hurt more. People who run it successfully have a system: smaller, more frequent injections to spread the volume, warming the vial beforehand, injecting slowly into larger muscle groups, and accepting that some soreness is part of the deal. Plan your pin schedule around your training split. Two to five days of site soreness means you do not inject quads the day before leg day. If you compete, time the last injection so the soreness clears before the platform.

Doses sit in the 200 to 400 mg per week range for most users. At 200, the lean-tissue effect is noticeable without overwhelming side effects. At 300 to 400 it competes with compounds much higher on the risk scale, which is the whole appeal. Going above 400 is rare because the PIP scales with it and the liver signal in animal work deserves respect.

Run it on a testosterone base like everything else on this shelf. Cycles typically go 10 to 16 weeks given the long ester. Because DHB does not aromatize, it stacks cleanly with compounds that do and adds no estrogen management complexity. It suppresses your own testosterone fully. Plan the exit, whether that is PCT or the commitment to stay on. Bloodwork matters more here than usual. Pull liver enzymes, lipids, and hematocrit, because you are the study.

Hold200 mg/wkSplit into 2–3 pins to manage PIP. Real effect at this dose. Staying here is not underdosing.
Push300 mg/wkWhen 200 is not enough. The returns are real but so is the PIP.
High400 mg/wkCompetitive results, competitive PIP. Liver values and lipids deserve watching.

Side effects

The pain is the headline, but the rest of the androgen profile follows:

commonPost-injection pain that can last two to five days per site, sometimes with visible swelling. The defining experience of running DHB. Smaller, more frequent injections help.
commonDHT-related sides: acne, oily skin, and accelerated hair loss in those predisposed. It is a potent androgen.
monitorNo human safety data exists. Bloodwork, especially liver enzymes and lipids, is your only early warning system.
anecdotalLethargy and reduced appetite reported at higher doses.

Where to buy

No live listings from tracked vendors right now.