Suppresses the myostatin gene that limits muscle growth, combined with enhanced myofibril density genes from Belgian Blue cattle. The result is significantly increased muscle mass and strength without proportional exercise — the muscles grow dense and powerful as a baseline state. Users gain 30–60% above their natural strength ceiling. The modification is visible — myostatin-knockout individuals are noticeably more muscular than even dedicated athletes, with a distinctive heavy, rounded musculature rather than the lean definition of natural bodybuilding. The effect is systemic and cannot be targeted to specific muscle groups. Helix Biosystems' version includes tendon reinforcement genes to prevent the connective tissue damage that would otherwise result from muscles stronger than the skeleton can safely handle. Street versions frequently skip the tendon package, leading to a condition called 'snap syndrome' — catastrophic tendon failure during exertion.