

Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substances:
- Testosterone Propionate 42 mg
- Testosterone Isocaproate 84 mg
- Testosterone Phenylropionate 84 mg
- Testosterone Decanoate 140 mg
Strength: 350 mg/mL
Amount: 10 mL Vial
Active Life: 3–21 Days (Blend)
Average Dose: 350–700 mg/week
Liver Toxicity: None
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: Axiolabs
Sustaplex 350 by Axiolabs is a potent testosterone blend designed to provide both fast-acting and sustained hormone release. It combines four testosterone esters: Testosterone Propionate (42 mg), Phenylpropionate (84 mg), Isocaproate (84 mg), and Decanoate (undisclosed dose), totaling 350 mg/mL. This mix closely mirrors the structure of Sustanon, but with increased total dosage per mL—ideal for serious bodybuilders seeking high-efficiency injections and powerful anabolic effects.
The combination of short and long esters makes Sustaplex 350 a flexible choice for users who want both rapid results and prolonged activity. The propionate ester begins working within 24–48 hours, while the decanoate ester sustains elevated testosterone levels for up to three weeks. This pharmacokinetic profile ensures stable blood hormone levels with fewer injections.
According to clinical data on testosterone esters, such blends improve compliance and maintain muscle-building and libido-enhancing benefits over longer periods than single esters.
Thanks to its ester diversity, Sustaplex 350 can be cycled as a standalone compound or used as a testosterone base in stacks. For example, pairing it with Equiplex 200 (Boldenone) results in a clean bulk with improved vascularity. To maximize early gains, users often include Methanoplex 10 (Dianabol) during the first 4–6 weeks.
Supportive compounds like Exeplex help control estrogen levels throughout the cycle.
As with any high-dose testosterone, Sustaplex 350 carries a high aromatization rate, leading to possible water retention, gynecomastia, and elevated blood pressure. Mitigating these risks requires the use of aromatase inhibitors (AIs). Popular choices include Exeplex or Letroplex.
Other potential side effects include oily skin, acne, and increased aggression. While hepatotoxicity is not a concern with injectable testosterone, cardiovascular health markers should be monitored during extended use.
Sustaplex 350 is suppressive to the HPTA (Hypothalamic-Pituitary-Testicular Axis), so a thorough PCT protocol is essential. Begin your PCT 21 days after your last injection. Common options include:
Adding hCG during the final weeks of the cycle may help preserve testicular function and ease the transition to natural testosterone production.
For athletes in the USA seeking reliable testosterone esters in one formulation, this advanced testosterone mix is available from a verified Axiolabs supplier. All orders are discreetly shipped with tracking and batch verification available upon request.
Sustaplex 350 by Axiolabs is a professional-grade testosterone solution designed to support sustained anabolic activity, enhanced libido, and steady gains. With a flexible ester profile and elevated concentration, it's ideal for experienced users who value power, convenience, and performance in every dose.
Sustaplex 350 contains a similar blend of testosterone esters but at a higher concentration (350 mg/mL vs. 250 mg/mL), offering stronger effects per injection.
To maintain stable hormone levels, it's recommended to inject Sustaplex 350 twice per week, even though the decanoate ester supports longer activity.
Beginners may find the dosage too high. It is generally recommended for intermediate to advanced users familiar with managing testosterone cycles.
Yes. Due to high aromatization, users should consider using aromatase inhibitors like Aromaxyl or Letroxyl to control estrogen-related side effects.
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Drug Class: Injectable Androgen / Anabolic Steroid (TNE)
Active Substance: Testosterone Suspension (no ester)
Strength: 100 mg/mL
Amount: 10 mL Vial
Active Life: ~24 hours
Average Dose: 50–100 mg/day
Liver Toxicity: Low
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: Axiolabs
Drug Class: Injectable Androgen/Anabolic Steroid
Active Substance: Testosterone Propionate
Strength: 100 mg/mL
Amount: 10 mL Vial
Active Life: 2–3 days
Average Dose: 100 mg every other day
Liver Toxicity: Low
Aromatization Rate: Moderate to High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: Axiolabs
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substance: Testosterone Enanthate
Strength: 250 mg/mL
Amount: 10 mL Vial
Active Life: 8–10 Days
Average Dose: 300–750 mg/week
Liver Toxicity: None
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: Axiolabs
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substance: Testosterone Cypionate
Strength: 250 mg/mL
Amount: 10 mL Vial
Active Life: 8–10 Days
Average Dose: 300–750 mg/week
Liver Toxicity: None
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: Axiolabs
Drug Class: Anabolic Androgenic Steroid (AAS)
Active Substances:
- Testosterone Acetate 30 mg
- Testosterone Propionate 73 mg
- Testosterone Phenylropionate 73 mg
- Testosterone Cypionate 125 mg
- Testosterone Decanoate 147 mg
Strength: 450 mg/mL
Amount: 10 mL Vial
Active Life: 2–21 Days (multi-ester)
Average Dose: 450–900 mg/week
Liver Toxicity: None
Aromatization Rate: High
Anabolic Rate: 100
Androgenic Rate: 100
Manufacturer: Axiolabs