Injectable Steroids

Injectable Steroids — The Foundation of Every Cycle

Injectable anabolic steroids are oil-based compounds administered intramuscularly. They bypass first-pass liver metabolism — no 17-alpha alkylation required, significantly lower hepatotoxicity than oral equivalents. Blood levels are stable and predictable based on ester half-life — allowing precise cycle planning with consistent anabolic environment throughout the cycle. Injectable steroids form the base of virtually every serious AAS protocol. See: Injectable vs Oral Steroids — Complete Guide.

Testosterone — Every Cycle Starts Here

Testosterone is the most important injectable AAS — the foundation of virtually every cycle and the only compound with decades of clinical safety data at supraphysiological doses. At Steroid Warehouse we carry all major testosterone esters:

• Testosterone Enanthate 250 — 7–10 day half-life, twice-weekly dosing. The gold standard first cycle compound and the most widely used testosterone ester globally
• Testosterone Cypionate 250 — 8–12 day half-life, interchangeable with Enanthate in practice
• Testosterone Propionate 100 — 2–3 day half-life, every-other-day injections, faster clearance
• Sustanon 270 — four-ester testosterone blend for varied release profile

For the complete first cycle protocol: Safest First Steroid Cycle.

Nandrolone — Deca and NPP

Nandrolone is the second most widely used injectable AAS — known for joint lubrication, dense wet gains and excellent mass-to-side-effect ratio at moderate doses. Two esters available:

• Deca 300 (Nandrolone Decanoate) — very long ester, once or twice weekly dosing, 9–18 month detection window. Run minimum 12–16 weeks for full benefit
• NPP 150 (Nandrolone Phenylpropionate) — shorter ester, more frequent injections, faster clearance. Preferred when shorter cycle duration is required

Trenbolone — Advanced Compound

Trenbolone is the most potent injectable AAS available — approximately 5× more androgenic than testosterone with no aromatisation and extreme anabolic effect. Not recommended for first or second cycles. Three esters:

• Trenbolone Acetate 100 — short ester, every-other-day dosing, fastest clearance if side effects appear
• Trenbolone Enanthate 200 — long ester, twice weekly. More convenient but slower to clear
• Parabolan 100 (Trenbolone Hexahydrobenzylcarbonate) — intermediate ester, less frequent injections than Acetate

Masteron, Primobolan and EQ — Lean and Dry

The premium cutting and lean mass injectables — no aromatisation, dry gains, significant quality-of-physique improvements:

• Masteron 100 (Drostanolone Propionate) — DHT derivative, hardening and drying effect, mild AI properties. Classic pre-competition compound
• Masteron 200 (Drostanolone Enanthate) — longer ester version, twice weekly dosing
• Primobolan 100 (Methenolone Enanthate) — most favourable side effect profile of any injectable AAS, least suppressive, no aromatisation. Quality keepable gains
• EQ 300 (Boldenone Undecylenate) — lean bulk, appetite stimulation, RBC elevation. Very long ester — run minimum 14–16 weeks. 4–6 month detection window

Steroid Blends and Multi-Compound Vials

Pre-mixed multi-compound injectables for convenience — single injection delivers multiple compounds:

• Cut Mix 150 — Testosterone Propionate + Drostanolone Propionate + Trenbolone Acetate
• Cut Long 300 — longer-ester cutting blend
• Tren Test 350 — Trenbolone Enanthate + Testosterone Enanthate

Frequently Asked Questions