Nandrolone phenylpropionate (NPP) 100mg/mL – 10mL Vial

Nandrolone Phenylpropionate (NPP) is the short acting counterpart to Nandrolone Decanoate (Deca Durabolin), delivering the same 19-nor base compound through a phenylpropionate ester with a half life of approximately 4–5 days. CSD’s formulation delivers 100mg/mL in a 10mL multi dose vial; a practical format for a compound requiring every 2–3 day administration to maintain stable blood concentration levels, where a single vial supply covers an extended protocol period without requiring frequent restocking.

The phenylpropionate ester’s shorter active window compared to the decanoate ester’s 15 day half life requires more frequent administration but offers researchers greater control over compound presence and faster clearance upon discontinuation. This distinction makes NPP and Deca Durabolin fundamentally different research tools despite sharing the same base compound. NPP’s faster clearance and adjustability make it a preferred starting point in nandrolone research protocols where flexibility and control are priority variables, while Deca’s sustained presence suits longer duration protocols with less frequent administration requirements.

Like all 19-nor compounds, Nandrolone Phenylpropionate lacks the carbon atom at the 19th position of the testosterone structure, producing a distinct interaction with androgen receptors and a substantially lower rate of aromatization compared to testosterone based compounds. NPP is frequently studied in research examining anabolic activity, connective tissue endpoints, and joint related variables. Areas where nandrolone compounds have accumulated a significant body of clinical literature spanning several decades.

Every batch of CSD’s NPP is third party lab tested for concentration accuracy and purity prior to release, with COA documentation available on request. Canada Steroid Depot stocks Nandrolone Phenylpropionate across multiple formats including this 10mL vial and a 10 x 1mL ampoule presentation, alongside Nandrolone Decanoate in both formats allowing researchers to source complete nandrolone ester and packaging format comparisons from a single verified Canadian supplier. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.

Store at room temperature away from direct light and heat. Do not freeze. Intended for research purposes only.

Commonly researched alongside a testosterone base compound and a prolactin management agent. Browse CSD’s full injectable range and PCT compounds for complete protocol sourcing.