Deca 250

£37.00

Deca 250 — 250mg/mL of Nandrolone Decanoate, the standard clinical formulation concentration in the world’s most-recognised injectable anabolic. At 250mg/mL, Deca 250 delivers the compound in its most commonly encountered dose-per-mL format — a single millilitre providing the foundational weekly dose in most Nandrolone protocols. Nandrolone’s mechanism is distinct from testosterone: it binds androgen receptors with high affinity but converts minimally to DHT, aromatises at roughly 20% the rate of testosterone, and produces significant muscle nitrogen retention without the androgenic side effect profile of testosterone at equivalent anabolic doses. The collagen synthesis enhancement — producing measurable improvements in tendon and…

SKU: PHX-039
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Description

Deca 250 — 250mg/mL of Nandrolone Decanoate, the standard clinical formulation concentration in the world’s most-recognised injectable anabolic. At 250mg/mL, Deca 250 delivers the compound in its most commonly encountered dose-per-mL format — a single millilitre providing the foundational weekly dose in most Nandrolone protocols. Nandrolone’s mechanism is distinct from testosterone: it binds androgen receptors with high affinity but converts minimally to DHT, aromatises at roughly 20% the rate of testosterone, and produces significant muscle nitrogen retention without the androgenic side effect profile of testosterone at equivalent anabolic doses. The collagen synthesis enhancement — producing measurable improvements in tendon and ligament strength and joint cushioning — is a genuine structural benefit that makes Deca invaluable in heavy loading phases. Prolactin monitoring and Cabergoline management are mandatory with Nandrolone use. Verified at 99%+ purity by Puralytix. Once-weekly injection at 250–500mg (1–2mL) maintains adequate plasma levels given the decanoate ester’s duration. The compound’s joint cushioning effect typically becomes noticeable within 3–4 weeks of starting. For power athletes managing cumulative joint wear, Deca is a therapeutic as much as a performance compound.

Every Phalanx Anabolics batch is independently assayed by a third-party laboratory for identity, label-claim accuracy and heavy-metal content. The certificate below corresponds to the batch supplied for this product.

PHX-B1086-26Pass

Deca 250

Purity99.9%
Tested9 April 2026
LabPuralytix
Nandrolone Decanoate250mg/ml → 254mg/ml
Pb · NDHg · NDAs · NDCd · ND

Certificate issued by Puralytix. View all certificates →

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