Disagree
Home Xt Labs Xt Labs
SUSTAPLEX 275
SUSTAPLEX 275 - Xt Labs

SUSTAPLEX 275 - Xt Labs

See options
Product Overview
This formulation combines Testosterone decanoate, Testosterone isocaproate, Testosterone phenylpropionate, and Testosterone propionate to provide both rapid onset and prolonged testosterone release. Each ester was selected to offer staggered absorption rates, ensuring stable hormone levels. Originally developed in the 1960s for therapeutic use, such blends are not FDA-approved but remain popular in bodybuilding. The mix results in complete suppression of endogenous testosterone, so post-cycle therapy is necessary.
References:

Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.

DrugBank (n.d.) 'Testosterone isocaproate', DrugBank Online. 

Turza, A., Pascuta, P., Mare, L., Borodi, G., & Popescu, V. (2023) 'Structural Insights and Intermolecular Energy for Some Medium and Long-Chain Testosterone Esters', Molecules.

International Union of Basic and Clinical Pharmacology (IUPHAR) (n.d.). Testosterone isocaproate. British Pharmacological Society (BPS).

Disclaimer: Information provided it this page is for general information only and does not substitute for professional medical advice.

For detailed information about SUSTAPLEX 275 by Xt Labs, consult with your doctor or healthcare professional.

Products
Show more
Explore More Products
FAQ
What administration method is standard for Testosterone decanoate in clinical use?
Testosterone decanoate is typically administered via deep intramuscular injection to ensure its slow and sustained release.
References:

Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.

What time frame is associated with the onset of action for Testosterone phenylpropionate?
Testosterone phenylpropionate generally begins to act within a few days after injection, offering a medium-acting profile.
References:

Llewellyn, W. (2017). William Llewellyn's Anabolics.
United States: Molecular Nutrition, LLC.

How does Testosterone isocaproate support hormone stability in long-term therapies?
Testosterone isocaproate maintains consistent hormone levels through extended release, reducing fluctuations in testosterone concentration.
References:

DrugBank (n.d.) 'Testosterone isocaproate', DrugBank Online.