
Supp facts ATS Labs HMB delivers 3,000mg of pure HMB per serving, a metabolite of leucine used to reduce muscle protein breakdown during hard training.
Performance EssentialsHMB (beta-hydroxy beta-methylbutyrate) is a leucine metabolite that's been studied mainly for its role in limiting muscle protein breakdown during intense or prolonged training, which is the angle ATS Labs leans on here at a 3,000mg dose. It's marketed to both athletes and older adults focused on preserving muscle mass, which is a slightly wider audience than the typical bodybuilding-only positioning of most items in this category. It pairs naturally with a protein and creatine stack rather than replacing either one - it's a recovery-support add-on, not a primary muscle builder.