1-Test Cyp 100

1-Test Cyp 100 (DHB) — Dihydroboldenone Cypionate by Dragon Pharma

1-Test Cyp 100 is Dragon Pharma's formulation of Dihydroboldenone Cypionate (DHB) at 100mg/ml — the 5-alpha reduced form of Boldenone (Equipoise), carrying an anabolic ratio of 200 and androgenic ratio of 100 with zero aromatisation. DHB is structurally to Boldenone what DHT is to testosterone — the 5-alpha reduced metabolite that cannot aromatise, produces harder, drier muscle gains, and carries greater androgenic activity in androgen-sensitive tissues. It is also widely noted for significant injection site pain that requires specific management strategies.

Also searched as: DHB, Dihydroboldenone Cypionate, 1-Testosterone Cypionate, 1-Test Cyp, DHB Dragon Pharma.

What DHB Is — The Dihydroboldenone Structure

The relationship between DHB and Boldenone (EQ) mirrors that between DHT and testosterone:

• Boldenone (Equipoise) is a mild aromatising AAS with anabolic ratio ~100 and androgenic ratio ~50. It aromatises to estradiol at approximately 50% the rate of testosterone
• Dihydroboldenone (DHB) is the 5-alpha reduced form of Boldenone — exactly as DHT is the 5-alpha reduced form of testosterone. The 5-AR enzyme reduces the double bond at the C1-C2 position of Boldenone, producing DHB
• Like DHT versus testosterone: DHB cannot aromatise (the 5-alpha reduction prevents aromatase from acting on it), has higher androgenic potency than its parent compound, and produces harder, more defined gains without water retention
• DHB's anabolic ratio of 200 is double testosterone's (100) — making it genuinely anabolic — while the androgenic ratio of 100 matches testosterone exactly. This anabolic:androgenic profile (2:1 ratio) is superior to testosterone's 1:1 while producing no estrogen
• DHB does not convert to DHT via 5-AR (it already is the 5-AR reduced form) — the standard Finasteride concern about DHT conversion does not apply

DHB vs Boldenone (EQ) — The Parent/Reduced Form Comparison

The Injection Pain Reality — An Honest Assessment

DHB's injection site pain is consistently underrepresented in competitor content and must be addressed directly:

• Dihydroboldenone Cypionate is notorious in the bodybuilding community for producing significant, sometimes severe injection site pain — not the mild post-injection soreness associated with compounds like Testosterone Enanthate, but pronounced pain, swelling and sometimes redness lasting 3-7 days after each injection
• The mechanism is not fully established but is believed to involve the compound's interaction with local tissue at the injection site — DHB at higher concentrations in a small oil depot is particularly irritating to surrounding muscle tissue
• Management strategies that meaningfully reduce (but do not eliminate) pain: diluting DHB with a less irritating oil compound (MCT oil alone, or drawing testosterone enanthate into the same syringe) — a 50:50 blend of DHB with another compound typically reduces pain substantially; limiting per-site injection volume to 1ml maximum; strict site rotation with minimum 48-72 hours before reinjecting the same site; using a slow, controlled injection technique with a smaller gauge needle
• Users who cannot tolerate the injection site pain from DHB are not making poor choices by switching to alternative lean mass compounds — this is a real and significant practical limitation

Effects and Benefits

• Lean, dry mass gains — no aromatisation means no water retention; gains are quality muscle tissue
• Anabolic ratio of 200 — double testosterone's anabolic potency at equivalent mg doses
• No AI required for DHB itself — zero estrogenic activity from this compound
• No conversion to DHT via 5-AR — already the 5-AR reduced form; no additional androgenic scalp/prostate activity from 5-AR conversion
• Moderately long duration from Cypionate ester — ~8-day half-life, twice-weekly injection
• Hardness and muscle density improvement — consistent with non-aromatising lean compounds

Dosage and Administration

Given injection pain, blending DHB in the same syringe with Testosterone Enanthate or Masteron Enanthate at 50:50 is a widely used strategy that significantly reduces site discomfort. The Cypionate ester provides ~8-day half-life — twice-weekly injection maintains stable blood levels. The testosterone base is strongly recommended alongside DHB; DHB alone provides no esterogenic support and complete HPG suppression still occurs.