Nandrolone Phenylpropionate (NPP) features a unique chemical modification at the 19th carbon atom, enhancing its anabolic effects while reducing androgenic activity. As a fast-acting variant of the Nandrolone hormone, due to its shorter ester, NPP facilitates quicker muscle gains and fat loss, leading to significant improvements in muscle size. It's known for its ability to markedly increase strength, reduce recovery times, and promote lean muscle growth. Additionally, NPP enhances endurance and stamina, making it a versatile choice for athletes. While it shares many benefits with its counterpart, Deca-Durabolin, NPP's distinguishing factor lies in its faster release into the bloodstream, allowing for more immediate effects and easier management of potential side effects.
Generic Name:

Nandrolone Phenylpropionate 150mg/ml

Compound Information:

Molecular Weight: 274.40 g/mol
Formula: C18H26O2
Anabolic Rating: 125
Androgenic Rating: 37

SKU: FLEX-INJ-012 Categories:, ,

Product Description

Dosage (Male)

200-500mg per week

Dosage (Female)

50-75mg per week

Dosage Frequency

Every 2-5 days (for 6-12 weeks)

Dosage Type

Intramuscular injection

Active Half-Life

Approximately 3-5 days

Chemical Name

19-Nortestosterone 17β-phenylpropionate

Post-Cycle Therapy

Clomid, Nolvadex, or HCG, 7-10 days after last injection

Revitalize Your Recovery

NPP triggers an expedited protein synthesis process in the muscles, fostering quicker building and repair of damaged muscle fibers. This heightened protein synthesis significantly enhances the body’s rejuvenation capabilities, hastening the recovery process. Additionally, Nandrolone showcases anti-inflammatory properties that effectively diminish muscle swelling and soreness, further amplifying the healing journey. Consequently, individuals enjoy an elevated capacity for muscle recovery, allowing them to swiftly rebound from demanding physical activities.

Alleviate the Burden of Cortisol

Cortisol plays a crucial role in various physiological processes. However, imbalances in cortisol levels can lead to adverse effects such as anxiety, depression, fatigue, chronic illnesses, and weight gain. Fortunately, NPP from Flex Pharma adeptly addresses this concern by proficiently inhibiting the excessive production of cortisol within the body’s hormonal system. By regulating cortisol levels, NPP helps maintain a harmonized hormonal environment, promoting overall well-being and mitigating potential risks associated with cortisol imbalances.

Amplify Muscle Mass

Supported by scientific evidence, Flex Pharma’s NPP proves effective in stimulating protein synthesis, resulting in substantial muscle growth. This positions it as a valuable tool for rapidly and safely enhancing both strength and size. The transformative effects of nandrolone administration typically become evident within weeks of starting a cycle, as it elevates the metabolic rate and contributes to the development of a more sculpted physique. Nandrolone offers a secure and efficient approach for individuals looking to build muscle rapidly and effectively without compromising their health or overall well-being.

Attain Lean Mass + Shed Body Fat

This compound emerges as an exceptional agent for reshaping body composition in various ways. Firstly, it facilitates fat reduction while concurrently encouraging the development of lean muscle mass. Its superior affinity for androgen receptors surpasses that of testosterone, ensuring the efficient absorption of hormones crucial for growth and development. Moreover, Nandrolone aids individuals in extracting more from intense training sessions while hastening post-workout recovery. This amalgamation of effects provides a potent tool for those aiming to transform their physique by optimizing the muscle-to-fat ratio and overall athletic performance.

Side Effects + Considerations

Although NPP is generally well-tolerated, users may experience subtle androgenic effects, such as increased skin oiliness, acne, and accelerated hair growth, particularly in those genetically predisposed to baldness. It’s worth noting that these androgenic side effects tend to be milder compared to other steroids due to the reduced androgenic activity of NPP. Natural testosterone production may be suppressed by NPP, resulting in reduced libido, mood swings, fatigue, and potential challenges in restoring hormone levels after discontinuation. To address this, implementing post-cycle therapy (PCT) may be necessary. Some individuals may also encounter estrogenic side effects, like water retention and gynecomastia, and careful monitoring, coupled with the use of anti-estrogen medications, can assist in managing these potential risks. Seeking guidance from a healthcare professional is essential for ensuring the proper management and safe use of NPP. Given the potential risks and side effects, it is crucial for individuals contemplating the use of NPP to consult with a healthcare professional first, gaining a comprehensive understanding of both the potential benefits and risks associated with the utilization of this substance.

Dosage for Adult Males:

200-500mg per week

Dosage for Adult Females:

50-75mg per week

Dosage Frequency:

Every 2-5 days (for 6-12 weeks)

Dosage Type:

Intramuscular injection

Our Guide to
Intramuscular Injection

Gather Your Equipment

If you're new to the process of injection, ensure you have all the essential supplies at your disposal before commencing. This includes the injectable substance, a sterile disposable syringe and needle, alcohol wipes, a secure container for proper needle disposal, cotton balls or gauze pads for cleansing, and optionally, a mirror for self-injection, if required. Having these items readily available ensures a seamless and uninterrupted injection process. It is vital to prioritize safety and efficiency to position your body optimally for health and longevity.

Compound Extraction

Once all the necessary materials are assembled, proceed to extract the substance from the vial. Keep the vial upright, slowly pull back the plunger to draw the prescribed dosage into the syringe. Be careful to extract the exact amount prescribed, adhering to the instructions provided by your healthcare professional. After filling the syringe, gently tap it to dislodge any air bubbles. If any air bubbles are present, push the plunger up slightly to eliminate them, ensuring that only the specified amount of the substance is in the syringe. Familiarize yourself with the proper injection depth before advancing to the next step.

Preparation Before Injection

Before administering your injection, choose a well-lit and clean area. Prior to starting, wash your hands thoroughly with soap and water to maintain hygiene. Once your workspace is prepared, ready the injection site, which could be the buttocks (gluteal muscles), thighs, or upper arm (deltoid muscle). Seek guidance from your healthcare provider on the appropriate site. Regardless of the chosen site, use an alcohol wipe to cleanse it, removing any dirt, oils, or contaminants. Allow the area to air dry completely after the cleaning process.

Compound Administration

With the syringe prepared, it's time to administer the injection. Hold the prepared syringe and carefully insert the needle into the designated injection site. Once the needle is inserted at the correct depth, pull back slightly on the plunger to confirm that you haven't hit a blood vessel. If blood appears in the syringe, retract the needle and attempt again with a new needle tip. Assuming there is no blood, steadily and slowly push the plunger to inject the substance. Take your time to ensure a controlled and comfortable administration of the injection. After the full dosage is administered, withdraw the needle from the injection site.

Safe Disposale of Needle Tips and Syringes

Ensuring the proper disposal of utilized syringes and needles is crucial for the safety of yourself and those around you. Once used, promptly deposit the syringe and needle into a designated sharps container. Avoid recapping the needle to prevent unintentional needle pricks. Familiarize yourself with the regulations in your local area concerning the appropriate disposal of medical waste. Numerous regions have specific guidelines for discarding sharps containers, and adhering to them is vital to safeguard both your community and the environment.

Incorporate NPP Into a Stack

Nandrolone Phenylpropionate (NPP) forms the foundation of effective bodybuilding stacks, leveraging its anabolic properties for muscle growth and recovery. To counteract NPP-induced testosterone suppression, Testosterone is included, ensuring physiological balance and muscle development. Dianabol boosts bulking phases with rapid mass and strength increases, while Winstrol and Anavar enhance cutting phases by promoting fat loss and muscle definition, avoiding water retention. For advanced users, Trenbolone adds a powerful element for muscle hardness and further fat burning. To address potential estrogenic side effects from aromatizable compounds like Testosterone and Dianabol, an aromatase inhibitor (AI) such as Anastrozole is essential. It helps maintain estrogen levels in check, preventing gynecomastia and excess water retention. This optimized stack combines NPP for anabolic growth, Testosterone for support, Dianabol for bulking, Winstrol and Anavar for lean cuts, Trenbolone for unmatched definition, and Anastrozole for estrogen management, crafting a targeted approach to bodybuilding phases and goals.

Usage Guidelines for NPP

Seek Guidance From a Medical Professional

Before contemplating the usage of anabolic steroids, it's essential to seek advice from a qualified healthcare professional. They can evaluate your general health, discuss possible risks and advantages, and offer personalized guidance based on your specific needs.

Get High-Quality Items From Trusted Sources

Make sure to procure anabolic steroids from trustworthy sources to reduce the likelihood of receiving counterfeit or tainted products. Only buy from reliable suppliers who adhere to quality control standards and have a favorable reputation within the community.

Start Slow and Progress Gradually

If you opt to incorporate anabolic steroids, it is recommended to initiate the regimen with the smallest effective dosage. Incrementally raise the dosage if required, while closely monitoring your body's reactions and any potential adverse effects.

Prioritize Proper Post-Cycle Therapy

Following the conclusion of a steroid cycle, it's crucial to engage in a thorough post-cycle therapy routine. This aids in restoring natural hormone production, minimizing side effects, and preserving overall health and well-being.

Side Effects + Considerations

Anabolic steroids present substantial health risks that necessitate careful consideration. Consult healthcare professionals before use to comprehend potential adverse effects, including cardiovascular issues, hormonal imbalances, and psychological impacts. Strictly adhere to prescribed dosages and durations while prioritizing regular health monitoring. Adolescents should refrain from using these substances due to potential growth interference. Opt for alternative fitness methods to prioritize overall health and well-being, and always use under professional supervision.

The use of anabolic steroids demands thoughtful consideration due to serious health risks. Seek guidance from healthcare professionals before embarking on their use to fully understand potential adverse effects. Strictly adhere to prescribed dosages and durations, prioritize regular health monitoring, and avoid use by adolescents to prevent potential interference with growth. Explore alternative fitness methods that prioritize overall health and well-being, and use anabolic steroids only under the supervision of qualified professionals.


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