PROBOL from Supreme Pharmaceuticals contains 100 mg/ml of Testosterone Propionate, a short-acting testosterone ester ideal for rapid results in muscle gain, strength, and recovery. Known for its fast onset of action, PROBOL is favored by athletes who seek quick performance benefits and improved body composition. Due to its short half-life, it requires more frequent injections to maintain stable hormone levels. It promotes protein synthesis, red blood cell production, and enhanced libido, making it suitable for both bulking and cutting phases.