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Ingredient research hub

Beta-Hydroxy-Beta-Methylbutyrate (HMB)

A leucine metabolite used in supplements in distinct forms, including calcium HMB monohydrate.

HMB is beta-hydroxy-beta-methylbutyrate. Preparations and studied doses can differ. Advanced Muscle Plus labels calcium HMB monohydrate as myHMB; the labeled salt amount is not an independently verified free-HMB equivalent. A branded ingredient or ingredient trial does not establish efficacy of a finished multi-ingredient product.

Related research

Choose a specific evidence question below. Formula reviews provide label context; they do not establish that the complete product reproduces an ingredient study.

Products containing it

Product inclusion indicates a catalog relationship, not an efficacy endorsement.