Nandrolone Phenylpropionate (NPP) is a shorter-estered form of nandrolone that delivers similar anabolic benefits to Deca-Durabolin but with faster onset and clearance. It promotes increased protein synthesis, nitrogen retention, and collagen production, supporting both muscle development and joint health. The shorter ester allows for quicker adjustment of dosages and reduces long-term detection times—an advantage for those wanting more control over their cycle.
NPP 100mg is a go-to for users who want the benefits of nandrolone but prefer shorter cycles or quicker recovery between protocols.
Benefits
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Promotes lean muscle growth
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Supports joint and connective tissue health
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Increases nitrogen retention and red blood cell count
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Enhances recovery and endurance
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Lower water retention compared to longer esters
Side effects
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Testosterone suppression
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Possible increase in prolactin (may cause low libido or gynecomastia)
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Acne, oily skin, or hair thinning in sensitive users
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Water retention (milder than with Deca)
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Possible mood changes or decreased libido without a testosterone base
Dosages & Protocol
Dosages for Men:
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Beginner: 300mg per week (3ml)
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Intermediate: 400–500mg per week (4–5ml)
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Advanced: Up to 600mg per week (6ml)
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Cycle duration: 8–10 weeks
Always stack with a testosterone base and consider using a dopamine agonist (e.g., Cabergoline) if prolactin-related side effects occur.
Dosages for Women:
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Advanced female users may use 25–50mg per week (0.25–0.5ml), split into two doses
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Cycle duration: 4–6 weeks
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Use with caution and discontinue immediately at any sign of virilization
How to administer
Administer via intramuscular injection using a 23–25 gauge, 1–1.5 inch needle.
Inject into large muscles such as the glute or thigh.
Due to the short ester, inject every other day for stable blood levels.
Always swab the injection site with alcohol before injecting. Rotate sites and use proper sterile injection practices.
Storage
Store in a cool, dry place away from light and moisture. Do not refrigerate. Keep vial sealed between uses.
Half life & detectability
Half-Life: Approximately 3–4 days
Detection Time: Up to 12 months after last injection
For athletes subject to drug testing, it is crucial to consider these detection times to avoid positive tests for banned substances.