Dihydroboldenone (DHB)
DHB · 1-Testosterone Cypionate
1-testosterone (DHB); potent, non-aromatizing. Limited human PK data.
Key takeaways
- 5α-reduced boldenone analog (1-testosterone); no approved use, grey-market only.
- Cannot aromatize, giving a dry, non-estrogenic anabolic profile.
- Modeled ~9-day half-life (cypionate ester) is extrapolated, not measured.
- Post-injection pain is the signature complaint; site rotation is standard advice.
Reported dosing protocols
Protocols reported in research literature and clinic/community use — informational context, not a dosing recommendation.
| Use case | Dose | Route | Frequency | Duration |
|---|---|---|---|---|
| Performance (community) | 100–300 mg weekly | IM | 2× weekly | 8–12 weeks |
Pharmacokinetic summary
- Model tier
- Simple (t½ + F, Tmax estimated)
- Half-life
- 9 days
- Cmax
- 69.9 ng/dL
- Bioavailability
- 100%
- Typical dose
- 100–300 mg
Harm reduction
- Aromatizes
- No
- DHT derivative
- Yes
- Hepatotoxicity
- mild
- Injection frequency
- 2×/week
Frequently asked questions
Is DHB really "1-testosterone"?
Yes. Dihydroboldenone and 1-testosterone are the same molecule: the 5-alpha-reduced form of boldenone. The name refers to its double-bond position relative to testosterone.
Why is DHB notorious for injection pain?
Users consistently report post-injection pain and swelling, commonly attributed to the compound crashing out of solution and crystallizing at the depot. Lower concentrations, smaller volumes, and site rotation are the usual mitigation advice.
Does DHB convert to estrogen?
No. As a 5-alpha-reduced steroid it is not a substrate for aromatase, so estrogenic water retention and gynecomastia from DHB itself are not expected. Any aromatizing compounds stacked with it are a separate question.
References
- Llewellyn Anabolics (11th ed.) — Cmax calibrated to ng/dL serum peak. 1-testosterone (DHB) has limited published PK data.
- Boldenone pharmacokinetics (PubMed) — Parent-compound PK reference; no 1-testosterone-specific human PK study exists.
Related compounds
Boldenone Cypionate
Boldenone with a cypionate ester. Model inherited from testosterone cypionate — treat as approximate.
Boldenone Undecylenate (Equipoise)
Equipoise; long half-life, slow steady gains. Notorious for long detection times.
Testosterone Enanthate
Long-acting testosterone ester; the most common TRT and cycle base. Reaches steady state in ~5 weeks.
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