Testosterone Cypionate is a long acting single ester testosterone compound with a half-life of approximately 8–12 days, providing stable and predictable blood concentration levels well suited to research protocols requiring infrequent administration. This formulation is manufactured by Porta Biologico and delivers 200mg/mL in a 10mL multi-dose vial using cottonseed oil as the carrier base. One of the most historically established carriers in injectable testosterone preparations, with a long track record in pharmaceutical manufacturing and excellent stability and shelf life characteristics.
Cottonseed oil has a slightly higher viscosity than lighter carriers like MCT or grapeseed oil but is exceptionally well tolerated with a proven compatibility profile in long term injectable use. It remains the carrier of choice in many traditional pharmaceutical testosterone preparations precisely because of its stability characteristics. Researchers selecting between CSD’s Porta Biologico cottonseed oil Testosterone Cypionate and other carrier variants will find the base compound and pharmacokinetic profile identical; carrier tolerability and personal preference representing the primary differentiating variables.
Porta Biologico formulations are stocked by Canada Steroid Depot following the same rigorous third party lab verification process applied to every product in our range. Each batch is tested for concentration accuracy and purity before being made available, with COA documentation available on request. CSD’s sourcing standards apply uniformly across all manufacturers we carry, and Porta Biologico’s Testosterone Cypionate meets those standards consistently. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.
Store at room temperature away from direct light and heat. Do not freeze. Intended for research purposes only.
Commonly researched alongside an aromatase inhibitor. Browse CSD’s full injectable testosterone range and PCT compounds for complete protocol sourcing.
