Rohm Labs Sustanon 250mg (Testosterone Blend)
Sustanon is a blend of four testosterone esters designed to provide both rapid onset and sustained release of testosterone. Rohm Labs Sustanon delivers 250mg per millilitre in a 10ml multi-dose vial, providing 2,500mg total. Each batch is independently lab-tested by a UK analytical laboratory.
Product Specifications
What Is Sustanon?
Sustanon was originally developed as a pharmaceutical testosterone replacement therapy product. The blend of four esters with different half-lives produces a rapid initial rise in testosterone (from the propionate and phenylpropionate esters) followed by sustained elevated levels (from the isocaproate and decanoate esters). This pharmacokinetic profile was designed to reduce injection frequency compared to single short-ester preparations.
In performance enhancement, Sustanon is used interchangeably with single-ester testosterone products like Testosterone Enanthate. Some users prefer Sustanon for its faster onset of action in the first few days after injection.
Common Uses and Cycle Guidelines
Bulking
Sustanon 250mg at 500mg per week (2ml) for 12-16 weeks provides a solid testosterone base for mass gain. It is commonly stacked with Deca 300mg for enhanced mass or Dianabol 10mg as an oral kickstart for the first 4-5 weeks.
Cutting
At a reduced dose of 250mg per week, Sustanon preserves muscle mass during a caloric deficit. Often combined with Anavar or Winstrol for enhanced cutting results.
TRT
At 125-250mg per week, Sustanon is used for testosterone replacement, maintaining physiological hormone levels. Bloodwork should be conducted regularly to monitor levels and adjust dosing.
Post-Cycle Therapy
Due to the long-acting decanoate ester, PCT should begin approximately 3 weeks after the last Sustanon injection. A standard protocol is Clomid 50mg and Tamoxifen 20mg daily for 4 weeks. An aromatase inhibitor such as Arimidex is recommended on cycle to manage estrogen.
Storage
Store at room temperature (15-25°C). Do not refrigerate. Inspect before each use.
Lab Testing
Every Rohm Labs Sustanon batch is tested by an independent UK laboratory to verify ester composition, total testosterone concentration, and sterility. Verify your batch on our Lab Testing and Verification page.
Related Rohm Labs Products
Commonly purchased with Sustanon 250mg: Test E 300mg, Deca 300mg, Dianabol 10mg, Arimidex, and PCT Tabs.


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