GP Phenyl 100 by Geneza Pharmaceuticals – Fast-Acting Power for Quality Muscle Growth

Brand: Geneza Pharmaceuticals

Substance: Nandrolone Phenylpropionate (NPP)

Action of the Drug

GP Phenyl 100 is a short-acting form of nandrolone that delivers rapid muscle-building effects with fewer side effects compared to longer esters. It boosts protein synthesis, increases nitrogen retention, and enhances recovery. The result is dense muscle mass, reduced joint pain, and steady strength progression.

Use in Sports

NPP is widely used in bodybuilding for lean bulking, especially when athletes want less water retention and more control over hormone levels. Its joint-soothing properties make it ideal for strength training and powerlifting phases, reducing discomfort under heavy loads.

Period of Drug Withdrawal

Due to its short ester, NPP clears the body faster than Deca (Nandrolone Decanoate). The half-life is around 3–4.5 days, and complete clearance occurs within 10–14 days. This makes PCT planning easier and more flexible.

Rate of Suppression of Natural Testosterone Production

Like all nandrolone-based compounds, GP Phenyl 100 strongly suppresses natural testosterone production. It's important to include testosterone in the cycle and follow with proper PCT to restore hormonal balance.

What Should Be Used During and After Use

During use:

• Testosterone Propionate or Enanthate
• Cabergoline (to manage prolactin levels)
• GP Anastrozole or GP Exemestane (if using with aromatizing compounds)

After use:

• Clomid (Clomiphene Citrate)
• Nolvadex (Tamoxifen Citrate)
• HCG (recommended for longer cycles)

Combinations with Other Anabolic and Androgenic Drugs

GP Phenyl 100 works well in both lean bulk and cutting cycles. Common combinations include:

• Testosterone Propionate + GP Phenyl 100 + Masteron (hard lean gains)
• GP Phenyl 100 + Trenbolone Acetate + Winstrol (dry and strong cutting cycle)
• GP Phenyl 100 + Equipoise + Testosterone Enanthate (moderate mass cycle)
• GP Phenyl 100 + Dianabol (for faster mass, with estrogen control)

Possible Side Effects and How to Avoid Them

Potential side effects include prolactin-related issues (gyno, low libido), suppression of natural testosterone, and mild water retention. To avoid this, keep prolactin under control with Cabergoline, always run a base of testosterone, and don't skip PCT. Regular bloodwork helps you adjust AI and dopamine agonist doses properly.

Why We Recommend It

Our team recommends GP Phenyl 100 for lifters who want faster results with less long-term buildup in the system. It's perfect for those who want lean muscle gains and joint protection without the waiting time of longer esters. For athletes looking for flexibility, this is a coach-approved favorite.

Comparison with Other Drugs

Compared to Deca, GP Phenyl 100 is faster acting, easier to manage, and clears the system quicker—ideal for shorter cycles or anyone who wants more control. Versus compounds like Trenbolone, it offers smoother muscle growth with fewer harsh side effects. It's also gentler than Superdrol or Anadrol in terms of toxicity and aggression.

Main Properties

• Drying – Fat Loss: Not primarily used for cutting, but it can be part of a recomp or cutting stack due to low water retention and increased recovery.
• Growth of Mass-Strength: Excellent for clean mass, strength gains, and joint support — ideal for offseason or moderate bulking.

GP Phenyl 100 is a reliable, fast-acting nandrolone with real performance benefits. Used correctly, it delivers clean results and helps keep your training on point. Trust the protocol, stay consistent, and follow with proper PCT.