STROMUSC Nandrolone Phenylpropionate 100mg/ml For Bodybuilding CAS:62-90-8

    Introduction to NPP100

    Nandrolone Phenylpropionate (NPP100), often abbreviated as NPP, is a synthetic anabolic-androgenic steroid (AAS) derived from nandrolone, the same parent compound as Deca-Durabolin (nandrolone decanoate). What distinguishes NPP100 is its phenylpropionate ester, which shortens its release time compared to the decanoate ester. This modification makes NPP a faster-acting compound, popular among bodybuilders seeking rapid results with reduced long-term side effects. Originally developed in the 1950s for medical use (e.g., treating anemia and muscle-wasting diseases), NPP100 has become a staple in performance enhancement due to its unique pharmacological profile.

    1.Esterification Dynamics:
    The phenylpropionate ester attached to nandrolone reduces the hormone's half-life to 2–3 days, compared to Deca's 15 days. This allows users to achieve stable blood concentrations with more frequent injections (e.g., every 2–3 days), minimizing hormonal fluctuations.

    2.Anabolic-to-Androgenic Ratio:
    NPP100 boasts a ratio of 125:37, making it significantly more anabolic than testosterone while exhibiting milder androgenic effects. This reduces risks like acne, hair loss, and aggression.

    3.Receptor Affinity:
    Nandrolone binds strongly to androgen receptors in muscle tissue but weakly to prostate and scalp receptors, lowering the likelihood of benign prostatic hyperplasia (BPH) or male-pattern baldness.

    4.Aromatization and Estrogenic Activity:
    NPP100 aromatizes (converts to estrogen) at approximately 20% the rate of testosterone. This reduces estrogenic side effects like gynecomastia but does not eliminate them entirely.

    5.Progestogenic Activity:
    Nandrolone exhibits moderate binding to progesterone receptors, which may synergize with estrogen to cause side effects like water retention or libido issues in sensitive individuals.

    NPP100 is versatile, fitting into multiple phases of training:

    1.Lean Bulking:
    Its moderate estrogenic activity supports lean muscle gains without excessive water retention, making it ideal for "clean" bulking cycles. Users report 8–15 lbs of muscle gain over 8–12 weeks when combined with a calorie surplus.

    2.Injury Prevention and Recovery:
    Nandrolone stimulates collagen synthesis, strengthening tendons and joints. This is critical for athletes lifting heavy weights or recovering from injuries.

    3.Cutting Cycles:
    NPP100's nitrogen-retention properties help preserve muscle mass during caloric deficits. Its mild estrogenic effects also maintain joint lubrication, reducing injury risk during intense cutting phases.

    4.Beginner-Friendly Cycles:
    With lower hepatotoxicity and manageable side effects, NPP is often paired with testosterone as a first-cycle compound.

    1.Reduced Water Retention:
    Unlike Deca-Durabolin, NPP's shorter ester limits extracellular fluid accumulation, yielding a harder, more vascular physique.

   2.Faster Results:
    The phenylpropionate ester allows users to notice strength and size gains within 2–3 weeks, compared to 4–6 weeks with Deca.

    3.Shorter Detection Time:
    NPP100 clears the body in 4–5 weeks, making it preferable for athletes subject to drug testing.

    4.Lower Cardiovascular Strain:
    Studies suggest nandrolone has less impact on blood pressure and cholesterol than testosterone or trenbolone, though risks remain.

    ●Men:

    ○Beginners: 100–200 mg/week (split into 2–3 injections).

    ○Intermediate/Advanced: 300–400 mg/week. Higher doses (>500 mg) increase side effects without proportional gains.

    ●Women:

    ○Rarely used due to virilization risks (e.g., voice deepening). If attempted, doses ≤50 mg/week are advised.

    Cycle Length:

    ○8–12 weeks. Prolonged use (>14 weeks) heightens suppression of natural testosterone and progesterone-related side effects.

    Stacking Options:

    ○Bulking: NPP100 + Testosterone Enanthate (300–500 mg/week) + Dianabol (20–30 mg/day).

    ○Cutting: NPP100 + Testosterone Propionate (100–150 mg EOD) + Masteron (400 mg/week).

    ●Half-Life: 2–3 days.

    ●Injection Frequency: Every 2–3 days (e.g., Monday/Thursday or Monday/Wednesday/Friday).

    ●Detection Time: 4–5 weeks in urine tests.

    NPP100 suppresses natural testosterone production for 4–6 weeks post-cycle. A robust PCT is critical:

    1.Timing: Begin 7–10 days after the last injection.

    2.Protocol:

    ○Clomid (Clomiphene): 50 mg/day (Weeks 1–2), 25 mg/day (Weeks 3–4).

    ○Nolvadex (Tamoxifen): 40 mg/day (Weeks 1–2), 20 mg/day (Weeks 3–4).

    ○HCG (Optional): 500 IU every other day during cycle to maintain testicular function.

    ●Progesterone Management:

    Cabergoline (0.25–0.5 mg twice weekly) inhibits prolactin spikes.

    ●Estrogen Control:

     Aromatase inhibitors (e.g., Anastrozole 0.5 mg/week) combat aromatization.

    ●Cardiovascular Health:

    Omega-3s, CoQ10, and regular cardio mitigate cholesterol impacts.

    1."Deca Dick" Myth:
    Libido loss is often blamed on nandrolone but usually stems from suppressed testosterone. Maintaining a testosterone base (200–300 mg/week) prevents this.

    2.Synergy with TRT:
    Low-dose NPP (100 mg/week) is gaining traction in testosterone replacement therapy (TRT) for joint relief without exacerbating side effects.

    NPP100 is classified as a Schedule III controlled substance in the U.S. and banned by most sports organizations. Sourcing from underground labs (UGLs) carries contamination risks, emphasizing the need for third-party testing.

Brand	STROMUSC
Trade names	Durabolin, NPP, Nandrolone phenpropionate 19-Nortestosterone phenylpropionate Nandrolone hydrocinnamate
CAS	62-90-8
Molar mass	406.57
Formula	C27H34O3
Purity	Above 98%
Apprarance	100mg/ml, 10ml/bottle

 

 

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    NPP100 bridges the gap between rapid-acting steroids and safer, long-term compounds. Its versatility in bulking, cutting, and injury recovery makes it a cornerstone of modern cycles. However, responsible use-paired with meticulous PCT and health monitoring-is non-negotiable. By leveraging its unique pharmacokinetics, bodybuilders can achieve quality gains with minimized trade-offs, provided they respect its potency.

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