NPP 100mg/mL in a 10mL vial with cottonseed oil carrier. Premium nandrolone phenylpropionate injectable with consistent concentration and secure packaging.
Format10mL Vial
Concentration100mg/mL
CarrierCotton Seed Oil
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HPLC verified. COA on file for this batch
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Discreet plain packaging; always
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Nandrolone Phenylpropionate, commonly referred to as NPP, is the short ester counterpart to Nandrolone Decanoate (Deca Durabolin) delivering the same base compound with a significantly faster release profile. CSD’s formulation supplies 100mg/mL in a 10mL multi dose vial using cottonseed oil as the carrier base, providing a stable, well tolerated medium with a long track record in oil based injectable preparations.
The phenylpropionate ester gives NPP a half life of approximately 4–5 days, compared to the 15 day half life of its decanoate counterpart. This shorter active window requires more frequent administration to maintain stable blood concentration levels, but offers researchers greater control over compound presence. Levels clear more quickly if administration is discontinued, which is a meaningful variable in protocols where adjustability is a priority. This distinction makes NPP and Deca Durabolin fundamentally different research tools despite sharing the same base compound.
Like all 19-nor steroids, 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 aromatisation compared to testosterone based compounds. NPP is frequently studied in research examining anabolic activity, connective tissue, and joint related endpoints. Areas where nandrolone compounds have accumulated a significant body of clinical literature.
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 has supplied Canadian customers with consistently verified, accurately dosed compounds for years. 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. Browse CSD’s full injectable range and PCT compounds for complete protocol sourcing.
NPP (Nandrolone Phenylpropionate) is the short-acting ester of Nandrolone. Sharing the same active compound as Deca Durabolin (Nandrolone Decanoate) but with a significantly shorter half-life of 2-3 days compared to Deca's 6-12 days. This shorter half-life requires more frequent administration. Typically every other day or three times per week but offers faster onset, faster clearance, and more rapid resolution of any side effects on discontinuation. NPP is preferred in shorter research cycles or where researchers want tighter control over plasma Nandrolone levels.
Nandrolone Phenylpropionate shares the same anabolic profile as Nandrolone Decanoate. High anabolic to androgenic ratio, strong nitrogen retention, significant collagen synthesis stimulation, and joint support properties. It is researched for lean mass accretion, connective tissue health, recovery enhancement, and joint lubrication in anabolic research protocols. Its faster clearance compared to Deca makes it particularly studied in research contexts where compound clearance timing is a consideration.
Due to its 2-3 day half-life, NPP requires administration every other day or three times per week to maintain stable plasma Nandrolone levels. Common research schedules include Monday, Wednesday, Friday injections or Monday, Wednesday, Friday, Sunday for more stable levels. Typical research doses range from 100–150mg per injection (300–450mg per week total). This 10mL vial at 100mg/mL provides sufficient compound for 10–30 injections depending on the per injection dose used.
Yes! Like all Nandrolone compounds, NPP is a progestin with moderate progesterone receptor affinity that can elevate prolactin, particularly in the presence of estrogen. Prolactin management with Cabergoline (0.25–0.5mg twice weekly) is commonly researched alongside NPP-containing protocols. Estrogen management with a mild aromatase inhibitor is also recommended, as Nandrolone aromatizes to estrogen at approximately 20% the rate of testosterone.
Yes! This batch has been independently HPLC tested by an accredited third party laboratory confirming concentration accuracy at 100mg/mL and compound identity as Nandrolone Phenylpropionate. A certificate of analysis is available.
