

For Intramuscular Injection
Composition:
- Testosterone Propionate 42 mg
- Testosterone Phenylropionate 84 mg
- Testosterone Isocaproate 84 mg
- Testosterone Decanoate 140 mg
Mixed Dosage: 350 mg/1 mL
Unit: 10 mL Multidose Vial
Manufactured by Axiolabs
Sustaplex 350 is a powerful testosterone blend formulated by Axiolabs, delivering a total of 350 mg of testosterone per mL. This injectable compound replicates the pharmacokinetics of Sustanon, combining four testosterone esters for fast onset and sustained release. It's ideal for bodybuilders looking to increase muscle mass, recovery, strength, and overall hormonal performance over an extended cycle.
This unique combination ensures that blood testosterone levels remain elevated and stable, reducing the need for frequent injections while delivering both immediate and long-lasting effects.
Sustaplex 350 is primarily used for performance enhancement, bulking, and testosterone replacement. It supports significant improvements in lean muscle mass, strength, endurance, and libido. The sustained release esters also make it suitable for TRT protocols under medical supervision.
To learn more about how multi-ester testosterone blends like Sustanon work, see this clinical review on testosterone formulations.
Sustaplex is often favored by those who want the convenience of fewer injections but still want consistent blood hormone levels.
The typical dosage for Sustaplex 350 ranges from 350–700 mg per week, injected 1–2 times weekly. Cycles usually last 10–14 weeks and are often stacked with other compounds like:
Because Sustaplex 350 is suppressive, it requires a robust PCT plan. Compounds like Clomiplex and Tamoxiplex are often used for optimal testosterone restoration post-cycle.
Common side effects include oily skin, acne, hair loss (in genetically prone users), water retention, and gynecomastia. Estrogenic side effects can be managed with aromatase inhibitors like Arimaplex. Regular bloodwork is strongly advised to monitor E2 and hematocrit levels.
Axiolabs is known for its precise formulation and pharma-grade quality. With Sustaplex 350, users receive a high-concentration testosterone blend that's ideal for experienced bodybuilders or those seeking a modern Sustanon alternative with enhanced potency.
Each vial contains 10 mL of 350 mg/mL Testosterone Blend. Fast, secure USA shipping available. Trusted by advanced users and strength athletes alike.
Sustanon-style steroids like Sustaplex 350 elevate testosterone levels for improved muscle mass, strength, libido, and recovery. It's commonly used for bulking and TRT.
Yes, multi-ester testosterone blends like Sustanon or Sustaplex 350 are used in TRT for stable hormone levels with fewer injections compared to short esters.
When dosed at 250–500 mg/week, Sustanon can significantly elevate testosterone levels above baseline, often exceeding 1000 ng/dL depending on individual response.
No, testosterone replacement suppresses LH and FSH, which can reduce sperm production. PCT is required to restore fertility post-cycle.
Most users inject Sustaplex 1–2 times per week. This keeps testosterone levels stable due to its mix of short and long esters.
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