Trenbolone is a synthetic anabolic steroid derived from nandrolone, originally developed for veterinary use to promote muscle growth in livestock. Over time, bodybuilders adopted it for its unmatched ability to rapidly increase muscle size and hardness while simultaneously aiding fat loss.
Trenbolone is not approved for human medical use in most countries and is classified as a controlled substance. Its anabolic rating is approximately 500, and its androgenic rating is also 500, making it five times more potent than testosterone in both muscle-building and androgenic effects.
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