Overview
Faster-absorbing HMB form.
- Endogenously produced or biosynthesized molecule
- Standardized pharmaceutical- or food-grade supplement
- Combined with cofactors that improve absorption or activity
- Capsule or softgel
- Powder
- Sublingual or buccal
- Liposomal liquid
Mechanism of action
Faster absorption than Ca-HMB.
- · Faster absorption than Ca-HMB
Effects on the body
Organ system effects
HMB-Free Acid influences muscle protein synthesis, neuromuscular output, or recovery from exercise.
Evidence-based benefits
Improves muscle damage recovery
Moderate evidencePotential side effects
- · Well tolerated
Drug interactions
Supplement interactions
- Creatine monohydrateFoundational support for strength, power, and lean mass.
- Whey or EAAsProvides amino acid substrate for muscle protein synthesis.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
Affiliate links — we may earn a commission at no extra cost to you. Amazon code supplementsch-20 is auto-applied at checkout. We don't endorse specific brands; verify third-party testing (USP, NSF, Informed Sport) before purchase.
Third-party testedIndependently verified HMB-Free Acid — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.HMB-Free Acid third party tested NSF
CapsulesPre-measured HMB-Free Acid capsules — easiest for travel and consistent daily dosing without scoops or scales.HMB-Free Acid capsules
PowderBulk unflavored HMB-Free Acid powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.HMB-Free Acid powder unflavored
Best sellersMost-purchased HMB-Free Acid products on Amazon — a quick way to see what's reviewed widely before you commit.HMB-Free Acid best sellerScientific evidence8Show studiesHide studies
HMB-FA and performance
Wilson JM, et al.
20 men
Reduced creatine kinase post-exercise.
PubMed: HMB-Free Acid — Improves muscle damage recovery
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PubMed: HMB-Free Acid — randomized controlled trial
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PubMed: HMB-Free Acid — dose response
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Google Scholar: HMB-Free Acid — clinical evidence
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