Nandrolone Phenylpropionate (NPP) 100mg/mL is a short ester injectable anabolic formulation supplied in a 10mL vial. Manufactured for consistency, stability, and research applications.
Format10mL Vial
Concentration100mg/mL
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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.
Jus received been 3 days so far using it overall feeling good
★★★★★David JeansVerified buyer2025-12-16
if used in small doses; this will fix most chronic pain
★★★★★Tom JVerified buyer2025-06-02
★★★★★MikeVerified buyer2025-04-13
NPP was/is great for lean bulk, promoting steady + clean muscle gains. Joint pain relief a bonus due to lubricating effect and causing less water retention compared to other bulking agents. Recommended
Nandrolone Phenylpropionate (NPP) 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. NPP demonstrates a high anabolic to androgenic ratio, strong nitrogen retention, significant collagen synthesis stimulation, and joint lubrication properties through synovial fluid production. It is researched for lean mass accretion, connective tissue health, recovery enhancement, and joint support in anabolic research protocols. Its faster clearance compared to Deca makes it particularly suited to shorter research cycles and protocols requiring faster post cycle compound clearance.
The active compound and concentration are identical Nandrolone Phenylpropionate at 100mg/mL. The multi dose vial format offers greater dosing flexibility than single use ampoules. Researchers can draw any volume per injection without being locked into fixed ampoule doses, making it easier to titrate doses such as 75mg or 150mg per injection that would require partial ampoule use in the ampoule format. The 10mL vial also provides a larger total volume in a single container, reducing the number of individual units required for a full research cycle.
Due to its 2–3 day half-life, NPP requires every other day (EOD) administration; Monday, Wednesday, Friday, Sunday being the most common research schedule to maintain stable plasma Nandrolone levels. Common research doses range from 100–150mg per injection (300–450mg per week total). At 100mg/mL, a 1mL EOD injection delivers 100mg per administration. This 10mL vial provides sufficient compound for 10 EOD injections, approximately 3 weeks of a standard EOD protocol.
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. Keeping both estrogen and prolactin in range is the primary ancillary management focus in NPP research protocols.
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.
