Sustaplex 350 is an injectable anabolic-androgenic steroid (AAS) blend containing Testosterone Decanoate (140 mg), Testosterone Phenylpropionate (84 mg), Testosterone Propionate (42 mg), and Testosterone Isocaproate (84 mg) at 350 mg/ml in a 10 ml vial from Axiolabs. Known as Sustanon, it's used in bodybuilding for muscle growth, strength, and performance enhancement. It has low hepatotoxicity but aromatizes, requiring estrogen management.
Sustaplex 350 enhances protein synthesis, nitrogen retention, and red blood cell production, leading to muscle hypertrophy, strength, and endurance. Its multi-ester blend ensures rapid onset and sustained testosterone release, promoting muscle fullness, energy, and fat loss. Users notice gains within weeks, though water retention may occur due to aromatization.
Sustaplex 350 can be safe when used responsibly under professional guidance, but it carries risks due to its aromatization and testosterone suppression. Potential side effects include gynecomastia, water retention, acne, and cardiovascular strain. Regular bloodwork to monitor estrogen, lipids, and testosterone levels is essential. Not recommended for beginners, women (due to virilization risk), or those with cardiovascular or prostate issues without medical oversight.
Sustaplex 350's esters have half-lives ranging from ~2 days (Propionate) to ~15 days (Decanoate), requiring injections every 3-7 days. It remains detectable in the body for up to 3 months, depending on dosage, metabolism, and testing methods. Bloodwork and professional guidance are advised for precise clearance timelines.
Sustaplex 350's testosterone esters bind to androgen receptors (AR), promoting protein synthesis, nitrogen retention, and erythropoiesis for muscle growth, strength, and endurance. The blend of short, medium, and long-acting esters (Propionate, Phenylpropionate, Isocaproate, Decanoate) ensures rapid onset and prolonged effects. Its aromatization to estrogen may cause side effects like bloating if not managed. Users notice muscle fullness and strength within days to weeks. What doesn't happen: no significant liver toxicity, but estrogen and androgen control is critical.
Sustaplex 350 excels for bodybuilders in bulking or cutting cycles, requiring a high-protein diet and intense training to maximize its anabolic potential.
Best for intermediate to advanced bodybuilders seeking muscle growth and performance in bulking or cutting cycles; suitable for men. Not recommended for beginners, women (due to virilization risk), or those with cardiovascular or prostate issues.
| Substance | Testosterone Decanoate (140 mg), Phenylpropionate (84 mg), Propionate (42 mg), Isocaproate (84 mg) |
|---|---|
| Concentration | 350 mg/ml |
| Form | Injectable vial |
| Pack Size | 10 ml |
| Half-life | ~2-15 days (ester-dependent) |
| Aromatization/Hepatic | High aromatization / Low hepatic |
| Primary Use | Muscle growth, strength, performance |
| Manufacturer | Axiolabs |
| Brand | Sustanon |
Sustaplex 350 is typically cycled for 10-12 weeks due to its long-acting esters. A common protocol is 350-700 mg/week for men, split into 1-2 injections (e.g., 175-350 mg twice weekly). Stack with orals like Dianabol for rapid gains or injectables like Deca Durabolin for mass and joint support. Start PCT 10-14 days after the last injection, using tamoxifen or clomiphene for 4-6 weeks. Bloodwork guides dosing and PCT timing.
Dianabol: Kickstarts rapid mass gains in bulking cycles.
Deca Durabolin: Enhances mass and joint support.
Arimidex: Controls estrogen to prevent bloating and gynecomastia.
Cycle Support: Supports lipid and cardiovascular health during cycles.
Sustaplex 350 vs Testosterone Enanthate: Sustaplex 350 offers varied release with multiple esters; Enanthate provides a single, longer-acting ester.
Sustaplex 350 vs Sustanon: Sustaplex 350 has a higher concentration (350 mg/ml vs. typical 250 mg/ml) with similar ester profiles.
Sustaplex 350 vs Trenbolone: Sustaplex 350 is more versatile with estrogenic risks; Trenbolone is stronger but harsher with progestogenic effects.
Review labs with a professional where lawful to ensure authenticity and disciplined dosing for safety.
Start PCT 10-14 days after last injection due to long esters; use tamoxifen (20-40 mg/day) or clomiphene (50-100 mg/day) for 4-6 weeks, possibly with HCG (500-1000 IU/week) for severe suppression. Bloodwork guides HPTA recovery, ensuring sustained gains and hormonal balance.
What is Sustaplex 350?
Sustaplex 350 is an injectable testosterone blend for muscle growth; see What is Sustaplex 350. It's potent—consult professionals for safe use.
What does Sustaplex 350 do?
It promotes muscle mass, strength, and performance; see What Does Sustaplex 350 Do. It enhances physique—monitor with labs.
Is Sustaplex 350 safe?
It can be safe with responsible use and monitoring, but risks include estrogenic and cardiovascular effects; see Is Sustaplex 350 Safe. Consult professionals for oversight.
How do I take Sustaplex 350?
350-700 mg/week, split weekly or bi-weekly; see How to Take Sustaplex 350. Start low—consult professionals for dosing.
How to cycle Sustaplex 350?
10-12 weeks, 350-700 mg/week, PCT after 10-14 days; see How to Cycle Sustaplex 350. Stack with testosterone—consult professionals.