
Infinis Nutrition has followed up its recent sneak peek with a full formula reveal of the new and improved version of its muscle-building supplement, simply named Muscle Builder, but in 2.0, it’s called Prime Builder. Still focused on muscle strength and development, Prime Builder expands its scope to include cellular health and longevity, integrating more advanced components and increasing the serving size to six capsules for broader, comprehensive support.
At the core of Prime Builder is the same full-strength 2.4g dosage of the premium and proven PeptiStrong fava bean peptide complex, which has been shown to stimulate muscle protein synthesis, combat muscle breakdown, and enhance recovery. Alongside that is 200mg of PeptiPump, another AI-discovered innovation from Nuritas, a hydrolyzed lentil peptide targeting benefits and effects that weren’t in Muscle Builder, with enhanced vasodilation and pump.

Completing Infinis Nutrition’s Muscle Builder sequel is half a gram of the mitochondrial and cellular health ingredient, StanYouth urolithin a, supporting endurance and longevity, and finally GG-Gold, a potent source of geranylgeraniol at 400mg for muscle function and skeletal health. Compared to the original, Prime Builder has made it more about longevity than dedicated muscle-building ingredients, as you no longer get epicatechin, RipFactor, or apigenin.
Prime Builder replaces Muscle Builder as Infinis Nutrition’s natural anabolic supplement and it’s looking to do that category justice by additionally offering robust anti-aging and longevity support. The innovation will still be able to stack with any of the other products from the reputable brand, including the testosterone booster Muscle Builder made its debut with simply named Test Booster, which is also being revamped to go with the debut of Prime Builder.