Also known as
Cypostan
Cypostan is an alternative name for testosterone cypionate, a long-acting injectable anabolic androgenic steroid. It is sold at SynthesisGear only as the Magnus 10 ml/250 mg vial, which contains 25 mg of testosterone per millilitre. This esterified form of testosterone binds to androgen receptors after intramuscular administration. Athletes typically run it on standard weekly or twice-weekly schedules. Users report that its slow release profile supports stable serum levels between doses.
Identity and Relationship
Cypostan refers specifically to testosterone cypionate, not a distinct molecule. It is the cypionate ester of testosterone, designed for slow release after injection. The 10 ml/250 mg vial represents the only product under this alias in the SynthesisGear catalogue. Buyers should note that it belongs to the injectable steroid category and is supplied exclusively by Magnus. No other brands or dose forms are listed under this name.
Practical Considerations
The single 10 ml/250 mg vial is the only available option for testosterone cypionate. Dosing must be calculated based on this concentration. There are no alternative brands or strengths to choose from in this shop. The long-acting nature of the ester means it is typically administered less frequently than shorter esters, which influences cycle planning and post-cycle therapy timing.
Questions & answers
Is Cypostan a different steroid?
No. It is simply another name for testosterone cypionate, the same long-acting injectable form of testosterone.
How much testosterone per ml in this vial?
Each millilitre contains 25 mg of testosterone, so a full 10 ml vial holds 250 mg.
Are there other brands sold here?
No. Magnus is the only manufacturer for this product at SynthesisGear.