Testosign is a branded oral Testosterone Undecanoate formulation delivering 40mg per soft gelatin capsule in a 30 count format. Testosterone Undecanoate is the only oral testosterone compound with a clinically established absorption pathway that partially bypasses first pass hepatic metabolism, a pharmacological distinction that sets it fundamentally apart from every other oral anabolic compound in research.

Unlike 17 alpha alkylated oral anabolic compounds which survive first pass liver metabolism through chemical modification, Testosterone Undecanoate is absorbed via the intestinal lymphatic system when taken with dietary fat, entering systemic circulation through the thoracic duct rather than the portal vein. This lymphatic absorption pathway bypasses the liver’s first pass processing, delivering bioavailable testosterone without the hepatotoxicity concerns associated with alkylated oral compounds. The soft gelatin capsule format is specifically designed to facilitate this fat dependent lymphatic absorption; the oil filled capsule formulation ensuring the compound is presented in a lipophilic environment conducive to intestinal lymphatic uptake.

The clinical history of oral Testosterone Undecanoate is extensive, having been approved for testosterone replacement therapy in numerous countries under brand names including Andriol and Jatenzo. This pharmaceutical approval history contributes to a well documented human clinical literature base that distinguishes Testosterone Undecanoate from most research compound oral testosterone preparations, making it a valuable reference compound in oral androgen bioavailability and lymphatic absorption research.

Testosign is stocked by Canada Steroid Depot following the same 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. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.

Store in a cool, dry place away from direct light and heat. Take with a meal containing dietary fat for optimal absorption. Intended for research purposes only.

Commonly researched alongside injectable testosterone formulations in comparative oral versus parenteral androgen bioavailability studies. Browse CSD’s full oral and injectable testosterone range and PCT compounds for complete protocol sourcing.