Testosterone Proprionate 100 - Stealth Labs

Developed in 1935 and launched commercially in 1937 by Schering AG as Testoviron®, testosterone propionate became the world’s first esterified injectable testosterone. This innovation allowed the hormone to remain active for several days, marking a revolutionary step in androgen therapy. Previously, testosterone suspensions offered only short-lived effects, requiring multiple daily doses. Propionate’s ester delayed release, improving treatment practicality. It remained the primary testosterone form through the 1950s and even became one of the earliest anabolic steroids used in American sports.

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For detailed information about Testosterone Proprionate 100 by Stealth Labs, consult with your doctor or healthcare professional.