NPP 100 mg 10 ml Xeno US
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- Brand: Xeno Labs US
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| Product Features | |
| DOSAGE | Men 200-700 mg/week |
| ACNE | NO |
| HBR | NO |
| HEPATOTOXICITY | NO |
| AROMATIZATION | NO |
| SUBSTANCE | Nandrolone Phenylpropionate |
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⚠️ WARNING: Potential Risks of Anabolic Steroids
Anabolic steroids can have significant effects on the body and should only be used under proper guidance. Misuse or unsupervised use can lead to health complications. These may include hormonal imbalances, liver strain, cardiovascular issues, psychological effects, and more.
If you choose to use anabolic steroids, it is essential to do so responsibly and only obtain them from trusted, verified sources.
NPP 100 mg (Nandrolone Phenylpropionate) – Xeno US
Fast-Acting Nandrolone for Lean Mass and Strength
Nandrolone Phenylpropionate (NPP) is the shorter, faster-acting ester form of Nandrolone (19-nortestosterone). While often compared to its longer-acting counterpart, Deca-Durabolin, NPP releases into the bloodstream much faster—providing a sharp spike in Nandrolone release 24–48 hours following deep intramuscular injection, and declining within about a week.
With a high Anabolic rating of 125 (compared to an Androgenic rating of 37), NPP is an effective compound used by athletes and bodybuilders to produce lean mass gains and increase strength with minimal significant side effects.
Key Benefits & Compound Profile
Fast-Acting Nandrolone: The Phenylpropionate ester ensures rapid hormone release, allowing the user to experience effects sooner than with Decanoate esters.
Quality Lean Mass: NPP is used to produce high-quality, measurable lean mass gains and significant strength improvements.
Low Estrogenic Activity: The compound exhibits low estrogenic activity, minimizing traditional estrogen-related side effects.
Anabolic Power: The Anabolic rating of 125 is significantly higher than its Androgenic rating of 37, making it powerful for muscle building with relatively moderate androgenic effects.
Technical Specifications
| Feature | Specification |
| Active Pharmaceutical Ingredient | Nandrolone Phenylpropionate (NPP) |
| Manufacturer | Xeno Labs |
| Concentration | 100 mg/ml |
| Package | 10 ml Vial (1000 mg Total) |
| Form | Injectable Oil |
| Anabolic Rating | 125 |
| Androgenic Rating | 37 |
| Estrogenic Activity | Low |
| Progestational Activity | Moderate |
| Active Life (in blood) | About a week |
Dosage and Usage
| Metric | Recommendation (Men) | Recommendation (Women) |
| Weekly Dosage | 200–400 mg weekly | 50–100 mg weekly |
| Injection Frequency | Once every 5 days (maybe 7) | Once every 5 days |
| Cycle Duration | 12 weeks | 6–8 weeks |
Side Effects
NPP has been shown to have no significant side effects, but some risks, particularly the strong androgenic and progestational effects, show up rarely.
Androgenic Effects: Can cause headache, acne, and rising/over sexual desires. These androgenic effects can sometimes be permanent for long years.
Progestational Activity: The moderate progestational activity necessitates awareness of potential side effects like prolactin-induced issues.
Common Rare Side Effects: The most commonly seen side effects of Nandrolone Phenylpropionate are tension and nose-bleeding.
Frequently Asked Questions (FAQ)
1. How often must NPP 100 mg be injected?
Due to its active life of only about a week and its fast release, NPP should be injected once every 5 days (maybe 7) to maintain stable hormone levels in the blood.
2. What is the main difference between NPP and Deca Durabolin?
The main difference is the ester used. NPP (Phenylpropionate) is a short ester that releases into the blood much faster and requires more frequent injections than the long-acting Deca Durabolin (Decanoate).
3. Is NPP suitable for women?
Yes. NPP is used by women in cycles of 6–8 weeks at a dosage of 50–100 mg weekly. However, the high anabolic rating and androgenic effects mean women must be cautious of virilization, and the androgenic effects can be permanent.
4. Why is the Progestational Activity important to note?
Nandrolone's moderate Progestational Activity means that users must be vigilant for prolactin-related side effects (like prolactin-induced gyno) and often require the use of a dopamine agonist (like Cabergoline) alongside a Testosterone base.

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