Anabolic Steroids/Hormones Anecdotal / vendor data

Dihydroboldenone (DHB)

DHB · 1-Testosterone Cypionate

9 days

Half-life

100–300 mg

Typical dose

2×/week

Frequency

8–12 weeks

Cycle length

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.

🚧 Expanded guide coming soon. This compound has PK data and a source — a full overview, mechanism, and dosing guide is pending editorial review.

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.