Many product listings show 500 mg of HMB per capsule, and manufacturers often describe a 1,000 mg serving as two capsules.
Serving counts commonly range from about 30 servings (60 capsules) up to 120 servings (240 capsules); some bottles list 100 servings for a 200-capsule count.
Several listings define a 1,000 mg serving as two capsules; other formulations explicitly list 500 mg per capsule.
Labels use terms like "HMB" and "beta-hydroxy beta-methylbutyrate" (often formatted as Beta-Hydroxy-Beta-Methylbutyrate), and some listings specify forms such as "Calcium HMB" or "Calcium Beta-Hydroxy Beta-Methylbutyrate."
Most capsule listings present a 1,000 mg per-serving dose; at least one listing shows a 3,000 mg per-serving option.
Many listings state "Adult Use Only" or "18 Years and Up" and advise consulting a healthcare provider if pregnant, nursing, or having a medical condition; product labels typically warn to keep the supplement out of reach of children.
Listings often include dietary claims like Non-GMO or gluten-free and note manufacturing/testing certifications such as NSF Certified, GMP compliant, FDA-registered facilities, independent third-party/ISO testing, and occasionally vegan or organic claims.
HMB appears as bulk powder, softgels, pills, tablets, and capsules; labels commonly use names including HMB, Calcium HMB, Calcium Beta-Hydroxy Beta-Methylbutyrate, or beta-hydroxy beta-methylbutyrate.
Product descriptions commonly state HMB supports increases in muscle mass and strength, helps reduce muscle breakdown and support lean muscle maintenance, aids recovery and training capacity, and can improve endurance during workouts.