1. Product Brief Introduction
Nandrolone Phenylpropionate (abbreviated NPP, trade name Durabolin) is a medium-short acting synthetic anabolic steroid under the nandrolone series.
Compared with long-acting Nandrolone Decanoate, NPP features a shorter half-life, which can rapidly raise blood active ingredient concentration and deliver instant anabolic support:
Ultra-strong protein anabolic activity, accelerates protein synthesis and inhibits muscle catabolism; quickly reverses negative nitrogen balance, speeds up muscle & tissue repair for trauma, post-operation and wasting disease patients.
Promotes calcium and phosphorus deposition as well as bone growth, effectively alleviates osteoporosis.
Low androgenic potency, delivers prominent recovery effects while minimizing masculinization/feminization side effects.
Core positioning for bodybuilding: fast strength gain, rapid muscle growth, outstanding joint relief effect.
2. Basic Chemical Specifications
Product Full Name: Raw Nandrolone Phenylpropionate Product Description: Pure Steroid Powder Nandrolone Phenylpropionate Raw Source NPP Powder For Bodybuilding Supplement
|
Item |
Parameter |
|
CAS No. |
62-90-8 |
|
EINECS No. |
200-551-9 |
|
Molecular Formula |
C₂₇H₃₄O₃ |
|
Molecular Weight |
406.57 g/mol |
|
Melting Point |
93℃ – 99℃ |
|
Appearance |
White to off-white crystalline powder |
3. Main Application Scenarios
NPP is highly favored by athletes who pursue fast muscle and strength gains within short cycles. Almost all competitive bodybuilders will add NPP to medium bulking stacks, as it maximizes protein synthesis and relieves joint soreness under heavy loads.
4. Product Characteristics & Mechanism Analysis
NPP is injectable nandrolone ester, with powerful anabolic effects and mild androgenic properties. Its phenylpropionate ester delivers a short half-life of only 2–3 days, much faster absorption than Deca. It converts to estrogen at a far lower rate than testosterone but carries weak progestogenic activity. Its rapid metabolic clearance allows users to pause or adjust dosage in time if water retention or erectile dysfunction occurs, while retaining excellent joint lubrication and pain relief benefits.
For male users, NPP brings stable, high-quality muscle gains. Fast absorption enables precise blood hormone control through frequent injections. Fast elimination fits short cycles and short detection windows, without sacrificing peak anabolic recovery efficiency.
5. Core Functional Applications
Boost protein assimilation & nitrogen retention; stimulate muscle hypertrophy, accelerate tissue repair. Elevate red blood cell and collagen synthesis to improve endurance and protect connective tissues.
Helps users break genetic limits and realize remarkable physique transformation within short-to-medium cycles. When prepared into injectable liquid, it maintains the body's peak anabolic state and repairs damage caused by long-term high-intensity training.
Important Warning: NPP strongly suppresses the HPTA (hypothalamic-pituitary-gonadal) axis. Complete Post-Cycle Therapy (PCT) is required after cycle termination to restore natural hormone secretion.
6. Standard Administration Guide
6.1 Injection Site
Deep intramuscular injection; common sites: gluteus maximus, lateral thigh, deltoid muscle
6.2 Injection Frequency
Half-life: 2–3 days. To maintain stable blood drug concentration and maximize anabolic effects: inject once every 2–3 days (2–3 times per week).
6.3 Cycle & PCT Recovery Rules
Exogenous nandrolone heavily suppresses endogenous testosterone secretion and may cause testicular atrophy. PCT is mandatory after stopping use:
Start PCT 1–2 weeks after the last injection (after the short ester is fully metabolized).
Adopt SERMs (Selective Estrogen Receptor Modulators) and auxiliary drugs to restart natural testosterone production.
7. Contact Information
For sample requests, bulk orders and technical consultation:
|
Contact Channel |
Details |
|
|
+852 4671 8216 |
|
Telegram |
@Allenraws |
|
|
Allenraws810@gmail.com |
Hot Tags: buy nandrolone phenylpropionate(durabolin) high-purity steroid powder, China buy nandrolone phenylpropionate(durabolin) high-purity steroid powder manufacturers, suppliers, factory, buy raw steroid powder, CAS 855 19 6, raw steroid powders for sale, Sustanon for Muscle Growth, testosterone cypionate raw powder, Testosterone enanthate increases muscle size and strength

