What is HMB? Beta-Hydroxy Beta-Methylbutyrate, or more commonly known by its abbreviation HMB, is a metabolite of the branch chain amino acid leucine. Why choose HMB? Growing in popularity since the 1990s, HMB is now widely used in many ‘all-in-one’ products. So why not try creating your own? Our HMB is made for this. Can it be used with other supplements? We recommend adding HMB to our Impact Whey Protein, as protein contributes to the maintenance growth and maintenance of muscle mass, or Creatine Monohydrate, with a daily intake of 3g, can increase physical performance in bursts of short-term, high-intensity exercise. Please note that the labeling on this product is provided in English as a minimum. French, Italian, German, Spanish, Danish, Swedish and Finnish may also be present on a product by product basis.