What is Nandrolone Phenylpropionate?
Firstly NPP, or Nandrolone Phenylpropionate, is a short-estered version of Nandrolone, similar to Deca-Durabolin (Nandrolone Decanoate), but with a much faster release and shorter half-life. This makes it ideal for users who want the benefits of nandrolone but with faster results, easier management of side effects, and quicker clearance from the body.
Additionally It’s prized for its ability to promote lean muscle mass, joint support, and recovery, making it a popular choice for both bulking and recomposition.
NPP Profile
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Compound: Nandrolone Phenylpropionate
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Half-life: ~2–4 days
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Type: Injectable anabolic steroid
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Anabolic/Androgenic Ratio: ~125:37
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Estrogenic Activity: Mild (via progesterone-related pathways)
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Injection Frequency: Every other day or 3x/week
Basically Why Bodybuilders Use Nandrolone Phenylpropionate
Lean Muscle Gains
Basically NPP is great for quality mass with less water retention than longer esters. Gains are steady, lean, and long-lasting.
Joint and Tendon Support
Subsequently Nandrolone is known for its collagen synthesis boost, which may help reduce joint pain and improve lifting comfort.
Quicker Kick-In
Additionally Unlike Deca which can take 4+ weeks to feel, NPP starts working in 1–2 weeks, giving faster results and more flexible cycle control.
Less Bloating
Finally While still mildly estrogenic (via progestin action), NPP causes less water retention compared to Deca, resulting in a cleaner, drier look.
Typical Dosage & Cycle Info
Dosage (Men):
Cycle Length:
Common Stacks:
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Firstly NPP + Testosterone Propionate or Enanthate
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NPP + Dianabol (classic mass stack)
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Finally NPP + Anavar or Winstrol (lean recomp or cutting)
- Laboratory: Sciroxx
- Form: Injectable
- Ingredients: Nandrolone Phenylproprionate
- Concentration: 100mg/ml
- Dosage: Between 150mg/ml and 600mg/ml / week
- Protection during the cycle : Anti-estrogen: Take 0.5mg of Arimidex in ED (every day) or take 1mg of Arimidex in EOD (every 2 days).
- Pct post cycle therapy: Nolvadex and Clomid during the recovery: 1 of each per day for 20 days.
- Benefits : Increased muscle mass and strenght, improved tissue recovery, fat burner effect
- Side effects : Increased LDL cholesterol, increased liver enzymes, acne, suppression of the testosterone production