Best HMB Supplement 2026: Ca-HMB vs HMB-FA, Ranked by Cost per Dose
Informational summary — not medical advice. This page ranks product value; on whether HMB is worth taking at all for your situation, see the hub, the trained-athlete evidence, and the muscle-loss niche. This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
If you have a real reason to try HMB — untrained, older, or coming off bed rest — cheap HMB-Ca powder at 3g/day is the evidence-backed choice; the premium free-acid form is priced for a benefit independent trials haven't shown. Of the 6 products compared, Ca-HMB bulk powder runs $0.28–$0.28/day, while the HMB-FA softgel runs $1.73/day — a 6.3x spread. BulkSupplements.com HMB Powder, Unflavored (250 g) is cheapest at $0.28/day; MuscleTech Clear Muscle (BetaTOR HMB-FA, 42 Liquid Softgels) is the priciest at $1.73/day — the HMB-FA form and dose the industry-funded trained-athlete trials actually tested.
As an Amazon Associate we earn from qualifying purchases. Ranked by cost per 3g/day dose, never by commissions.
The one-line takeaway Every product here discloses HMB content directly — the two real levers are form (powder vs. capsule/softgel) and salt (Ca-HMB vs. HMB-FA). Ca-HMB bulk powder is by far the cheapest way to hit 3g/day. HMB-FA absorbs faster and higher (Fuller 2011) and is exactly what the hyped trained-athlete trials used — but no independent evidence shows that kinetic edge produces a better real-world outcome than the cheaper Ca-HMB salt.
Every product compared: cost per 3g/day dose
Sorted cheapest per dose first. Full data is a public CC BY JSON file.
| Product | Form | HMB type | mg/serving | Price | $/g HMB | $/3g dose |
|---|---|---|---|---|---|---|
| BulkSupplements.com HMB Powder, Unflavored (250 g) | Powder | HMB-Ca (calcium salt) | 1000 mg | $22.97 | $0.092 | $0.28 |
| Primaforce HMB Powder, Unflavored (200 g) | Powder | HMB-Ca (calcium salt) | 1000 mg | $18.50 | $0.093 | $0.28 |
| BulkSupplements.com HMB Capsules (360 ct, 3,000 mg serving) | Capsule | HMB-Ca (calcium salt) | 3000 mg | $23.97 | $0.133 | $0.40 |
| Nutricost HMB 1,000 mg (240 Capsules) | Capsule | HMB-Ca (calcium salt) | 1000 mg | $19.50 | $0.163 | $0.49 |
| Optimum Nutrition HMB 1000 Caps (90 Capsules, 3,000 mg serving) | Capsule | HMB-Ca (calcium salt) | 3000 mg | $39.99 | $0.444 | $1.33 |
| MuscleTech Clear Muscle (BetaTOR HMB-FA, 42 Liquid Softgels) | Softgel | HMB-FA (free acid) | 1000 mg | $24.24 | $0.577 | $1.73 |
Prices are live Amazon buy-box figures, verified July 19, 2026; they move. Cost per 3g dose = cost per gram × 3, matching the near-universal daily dose across the trials reviewed for this cluster.
Two things worth reading before you buy
Ca-HMB vs. HMB-FA is a real, confirmed pharmacokinetic difference — with no confirmed outcome difference. Fuller et al. 2011 (100% Metabolic Technologies Inc.-authored) found HMB-FA reaches peak plasma HMB in about 38 minutes vs. 128 minutes for Ca-HMB, at roughly double the peak concentration and AUC. That kinetic data itself isn't disputed. But nothing independent in this evidence base shows faster/higher plasma HMB translates into better strength or muscle-mass outcomes — that's exactly the leap the industry-funded trained-athlete trials (Wilson 2014, Lowery 2016) make that this pharmacokinetics paper alone doesn't support.
Powder vs. capsule/softgel is mostly a packaging premium. The cheapest Ca-HMB powder (BulkSupplements.com) costs a fraction per gram of the Ca-HMB capsules (BulkSupplements, Nutricost, Optimum Nutrition) or the HMB-FA liquid softgel (MuscleTech) — convenience and, for the FA product, a patented delivery format, carry a real price premium. The Optimum Nutrition capsule is priced close to the HMB-FA product despite being the same cheaper Ca-HMB salt as the $0.28/day powder.
Third-party testing: mixed across this set
Testing claims vary by brand here — BulkSupplements' products state third-party testing or cGMP manufacturing and Nutricost states ISO-lab third-party testing, while Primaforce, Optimum Nutrition, and MuscleTech state no independently verified certification on the listing. HMB is a simple, well-characterized compound rather than a botanical extract with high adulteration risk, but if third-party verification matters to you, check each brand's current Amazon listing and Certificate of Analysis directly — certification claims can change between price-refresh cycles.
Frequently asked questions
What is the best HMB supplement?
Cheapest per dose: BulkSupplements.com HMB Powder, Unflavored (250 g) at $0.28/day — Ca-HMB bulk powder, a 6.3x spread vs. the priciest HMB-FA softgel.
What's the difference between HMB-Ca and HMB-FA?
HMB-FA absorbs roughly 3x faster and at double the plasma concentration (Fuller 2011) — but no independent trial shows that translates to a better outcome. Ca-HMB is the defensible-evidence default.
Which product matches the Wilson 2014 trial exactly?
MuscleTech Clear Muscle (HMB-FA, 3 servings/day = 3g) — but that trial's magnitude was never independently replicated.
Why is powder so much cheaper?
You're paying for encapsulation, convenience, and (for HMB-FA) a patented delivery format — not a better-proven ingredient.
Related
- HMB: what it actually does, honestly explained
- HMB dosage guide — 3g/day and the Ca-HMB vs. HMB-FA kinetics
- HMB for muscle loss
- Does HMB actually work?
- Best creatine — the sports supplement with the far deeper, independently-replicated evidence base
- Best BCAA
Sources
- Manufacturer labels and live Amazon pricing for all listed products, verified July 19, 2026. Full dataset: /hmb/cost-by-brand.json (CC BY 4.0).
- Fuller JC Jr, Sharp RL, Angus HF, Baier SM, Rathmacher JA. "Free acid gel form of β-hydroxy-β-methylbutyrate (HMB) improves HMB clearance from plasma in human subjects compared with the calcium HMB salt." Br J Nutr. 2011. PMID: 21134325 (100% Metabolic Technologies Inc.-authored pharmacokinetics data).
- Wilson JM, Lowery RP, Joy JM, et al. "The effects of 12 weeks of beta-hydroxy-beta-methylbutyrate free acid supplementation on muscle mass, strength, and power in resistance-trained individuals: a randomized, double-blind, placebo-controlled study." Eur J Appl Physiol. 2014. PMID: 24599749 (funded by Metabolic Technologies Inc.).