Description
Testosterone cypionate is a long-acting injectable form of testosterone, a naturally occurring male sex hormone (androgen). It is the cypionate ester of testosterone, which slows its release into the bloodstream after injection, allowing for less frequent dosing compared to pure testosterone.
It is commonly known by the brand name Depo-Testosterone (and generics), and it is a Schedule III controlled substance in the US due to its potential for misuse.
What It Is and How It Works
Testosterone cypionate is an oil-based solution (usually in cottonseed oil) injected deep into a muscle, typically the gluteal (buttock) muscle. Once injected, the ester is gradually cleaved, releasing active testosterone over time. This mimics the body’s natural production but provides steady levels for replacement.
It binds to androgen receptors in tissues, promoting:
• Development and maintenance of male sexual characteristics
• Muscle mass and strength
• Bone density
• Red blood cell production
• Libido and energy levels
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