For International Brand Clients
Product Name: HMB Free Acid (Short Name: HMB-FA / HMB)
Document Date: 20 July 2026
Department: Marketing & Raw Material R&D, KEEP INGREDIENTS
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Item |
Standard Details |
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Full Ingredient Name |
β-Hydroxy-β-Methylbutyric Acid (HMB Free Acid / HMB-FA) |
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CAS No. |
625-08-1 |
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Molecular Formula |
C₅H₁₀O₃ |
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Active HMB Content |
83% pure active molecule (vs 76% for CaHMB) |
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Physical Property |
Fine white powder, natural mild sour taste, excellent cold-water solubility, low sediment risk |
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Core Physiological Mechanism |
Direct leucine metabolite; no calcium dissociation required after ingestion, rapid intestinal absorption, accelerates muscle protein synthesis & suppresses muscle breakdown |
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Comparison Item |
HMB Free Acid |
CaHMB (Calcium Salt HMB) |
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Absorption Speed |
Ultra-fast, direct intestinal uptake |
Slow, requires stomach dissociation of calcium ions |
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Plasma Cmax |
2.5x higher peak blood level |
Mild, steady low peak concentration |
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Solubility in Cold Water |
Excellent, clear dilute solution |
Poor, obvious sediment & turbidity |
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Formula Compatibility |
No calcium flocculation with citrate/phosphate |
Easy precipitation in acidic beverage systems |
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Storage Stability |
Medium, needs anti-caking granulation |
Superior natural moisture resistance |
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Market Position |
Premium high-performance raw material |
Mass-market commodity staple |
HMB-FA is the fastest-growing premium sub-segment in global HMB market, widely adopted by top international professional sports brands; domestic chemical synthesis & purification production technology fully mature, GMP mass supply stable, approved GRAS in US, novel food compliant in EU & China supplementary food system.
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Item |
Official Verified Data |
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Global HMB-FA Independent Market Size |
USD 180.2 million (2025); Forecast USD 387.6 million (2034) |
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HMB-FA Segment CAGR (2025–2034) |
10.9% (Highest growth rate among all HMB variants) |
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HMB-FA Market Share in Total HMB Industry |
16.03% (2025), continuous year-on-year share expansion |
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Core Regional Consumption Markets |
North America (62% premium brand demand), Western Europe, Australia, Japan high-end fitness channel |
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Fastest-Growing Segments |
Instant single-serve recovery sticks, premium pre-workout powder, athlete clinical nutrition, buffered low-acid HMB-FA, tablet-grade granulated HMB-FA |
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Data Source |
Dataintelo Global Sports Amino Acid Raw Material Report 2026 |
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Metric |
Rating |
Explanation |
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Market Maturity Level |
★★★★ Rapidly Growing Premium Track |
Over 18 years clinical human trial data; originally exclusive to Western patented raw material suppliers, domestic large-scale purification production mature after 2022, huge penetration room replacing imported branded HMB-FA |
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Dimension |
Detailed Status |
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Competition Intensity |
★★★ Medium-Low (Premium differentiated track, less price war than CaHMB) |
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Raw Material Supply Pattern |
Western patented raw material (BetaTOR) occupies top high-end market; 3–4 domestic manufacturers realize stable 98.5%+ high-purity mass production; most domestic factories only produce CaHMB without HMB-FA purification capacity |
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Top Global Branded HMB-FA Raw Material |
BetaTOR (TSI Group), PurHMB-FA (NNB Nutrition) |
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Domestic Mature Premium Differentiation Paths |
Micronization, instant agglomeration, sour taste buffering, anti-hygroscopic granulation, direct compression tablet grade, effervescent compatible grade |
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Pain Point |
Commercial Negative Impact |
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Natural sour taste irritates palates in fruit-flavored products |
Restricts gummy & light-taste single stick development |
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Fine raw powder strong hygroscopicity, easy caking during storage & filling |
Low automatic production efficiency, poor finished product appearance |
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Unbuffered free acid may lower formula pH, incompatible with sensitive dairy systems |
Limited application in milk-based meal replacement powder |
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Ordinary coarse powder slow dispersion in cold concentrated shakes |
Not fit for high-concentration instant fitness mixes |
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Imported patented HMB-FA extremely high raw material cost & long delivery lead time |
Compresses brand profit margin & delays new product launch cycle |
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Opportunity Rating |
Core Profit Logic |
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★★★★★ Massive Premium Upgrade Blue Ocean |
Commodity CaHMB suffers brutal price competition; domestic self-produced upgraded HMB-FA specs deliver 50%–120% gross premium vs CaHMB, 30% cost saving vs imported branded HMB-FA; professional athlete & high-end aging nutrition segments remain underserved by local suppliers |
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Representative Brands |
Representative Products |
Product Positioning |
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MuscleTech |
Clear Muscle Capsules (BetaTOR HMB-FA) |
Global benchmark premium fast recovery athlete supplement |
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JYM Supplement Science |
Post JYM Fast-Act Recovery Powder |
Professional trainer exclusive high-absorption recovery blend |
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Kaged Muscle |
Elite Post-Workout HMB-FA Mix |
CrossFit & strength athlete premium repair powder |
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TSI Group |
BetaTOR Raw HMB-FA |
Patented imported high-purity branded raw material |
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NNB Nutrition |
PurHMB-FA Granulated Raw Material |
European stable granulated HMB-FA supply |
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NOW Sports |
Premium HMB-FA Vegan Capsules |
Mid-tier high-end daily fitness muscle maintenance |
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Transparent Labs |
Bulk Domestic HMB-FA Powder |
Private label brand cost-effective imported substitute raw material |
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Cellucor |
C4 Elite Pre-Workout (HMB-FA Blend) |
Mass premium pre-workout fast absorption formula |
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Upgrade Category |
Specification / Technology |
Core Technology Features |
Matching Application Scenarios |
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Conventional Specifications |
HMB-FA 98.5% / 99.0% high purity; 80/100/200 mesh fine powder; custom particle fineness available |
N/A |
Premium bulk recovery powder, high-end hard capsules, low-acid compound premix |
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Powder Engineering |
Micronized ultra-fine powder, agglomerated instant powder, anti-hygroscopic dry granulation, low-dust direct compression tablet grade, single-serve stick pack dedicated grade |
N/A |
Cold instant recovery mixes, automatic tableting production, high-speed stick filling lines |
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Solubility Upgrade |
Fast cold-dispersion beverage grade, effervescent compatible neutralized grade |
N/A |
Effervescent recovery tablets, low-concentration fruit instant sticks, warm functional fitness drinks |
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Bioavailability Upgrade |
Standard high-purity refined HMB-FA (domestic full purification mature; higher purity = faster absorption) |
N/A |
Professional athlete pre/intra-workout fast repair formulas, premium anti-sarcopenia oral powder |
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Stability Upgrade |
Moisture-resistant buffered granulated HMB-FA, medium-temperature heat stable grade |
Anti-hygroscopic, neutralized mild acid matrix, no caking under long-term sealed storage |
Long-shelf compound premix, baked low-acid protein bars, daily sustained tablet products |
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Taste & Physical Property Upgrade |
Sour taste buffering neutralization, mild fruit-compatible modified texture, low residual acid aftertaste |
N/A |
Fruit-flavored single recovery sticks, chewable fitness tablets, mild-taste senior nutritional powder |
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Customized Solutions |
Premium fast-recovery complex premix, OEM/ODM multi-active custom formula, custom bulk density & fluidity tuning |
N/A |
Brand exclusive high-end pre/post-workout proprietary blends, one-stop professional athlete nutrition raw material kits |
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Application Track |
Matching Finished Dosage Forms (Domestic Commercialized Only) |
Target Consumer Groups |
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Professional Elite Sports Nutrition |
High-dose post-workout recovery powder, concentrated pre-workout performance blends, effervescent recovery tablets |
CrossFit athletes, competitive weightlifters, marathon & combat sports professionals |
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Mid-to-High End General Fitness |
Single-serve fruit buffered stick packs, premium vegan hard capsules, unflavored instant bulk powder, HMB-FA gummies, transparent bottled RTD liquid |
Serious recreational gym users, amateur long-distance runners, cutting-cycle fitness crowds |
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Premium Healthy Aging Anti-Sarcopenia |
Buffered granulated HMB-FA nutritional powder, plain high-purity capsules |
High-income middle-aged & seniors (45+), population with rapid muscle loss risk |
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Clinical & Premium Meal Replacement |
Low-acid fortified milk powder, solid nutrition protein bars, rehabilitation oral powder |
Post-surgery muscle repair users, long-term bedridden rehabilitation population |
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Solid Oral Premium Supplements |
Direct-compression standard tablets, effervescent recovery tablets, high-purity hard capsules |
High-end daily supplement consumers, office workers with intensive training schedules |
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No. |
Mature Industrialized Product Form |
Core Unique Selling Point |
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1 |
Anti-hygroscopic buffered instant agglomerated HMB-FA |
Zero storage caking, fast cold water dispersion, mild neutralized sour taste compatible with all fruit flavors |
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2 |
Ultra-micronized high-purity refined HMB-FA |
Maximum intestinal absorption speed, 30-min peak plasma HMB, minimal single serving dosage required |
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3 |
Tablet-grade dry granulated HMB-FA |
High fluidity for high-speed tableting, heat stable under pressing, no acid erosion to tablet mold |
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4 |
Effervescent dedicated neutralized HMB-FA |
Perfect matching citric-sodium bicarbonate effervescent system, no precipitation after full dissolution |
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5 |
Low-acid buffered granulated HMB-FA for dairy |
pH adjusted matrix, no curdling when blended with milk & whey meal replacement powder |
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Formula Combination |
Dual Core Efficacy |
Target Market Positioning |
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HMB-FA + Creatine Monohydrate |
Fast muscle repair + strength & explosive power boost |
High-end all-in-one pre/post workout premium blend |
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HMB-FA + Beta-Alanine |
Rapid post-training damage reduction + lactic acid buffering endurance extension |
Elite long-distance aerobic athlete specialized formula |
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HMB-FA + L-Citrulline Malate 2:1 |
Fast muscle recovery + blood flow muscle pump effect |
Professional competition pre-workout high-performance powder |
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HMB-FA + EAA / Hydrolyzed Whey |
Accelerate muscle protein synthesis + full amino acid repair matrix |
Premium lean muscle gain meal replacement shakes |
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HMB-FA + Magnesium + Vitamin D3 |
Prevent age-related muscle atrophy + bone & muscle dual maintenance |
Luxury senior anti-sarcopenia nutritional powder line |
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HMB-FA + Betaine Anhydrous |
Quick exercise muscle protection + cell hydration endurance support |
Cutting-phase high-end fitness weight management blends |
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Development Trend |
Specific New Product Forms (Mid-Term Mass Production Target) |
Core Market Growth Logic |
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Fully optimized low-acid buffering series |
Custom pH adjustable HMB-FA granules tailored for dairy & sensitive formula systems |
Expand application into premium milk replacement & senior dairy nutrition segments |
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Specialized single-serve instant HMB-FA grades |
Ultra-low dust agglomerated powder exclusive for portable fruit sticks |
Capture fast-growing single-dose portable fitness consumer market |
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Domestic alternative high-purity HMB-FA to replace imported BetaTOR |
Consistent 99% high-purity refined raw material with matching absorption data |
Help brands cut 30%+ imported raw material procurement cost & shorten supply lead time |
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Low-dose mild HMB-FA for women’s fitness |
Light-buffered low-acid fine powder with mild fruit compatibility |
Tap underserved high-end female premium fitness niche away from CaHMB commodity competition |
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Gradual stable beverage & gummy compatible specs |
Optimized low-acid modified HMB-FA for later mass launch of HMB-FA gummies & clear RTD (after formulation stability verification) |
Lay technical foundation to seize future fast-growing convenience beverage & chewable supplement tracks |
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Technical Platform |
Mature Mass-Producible HMB-FA Capabilities |
Direct Client Business Value |
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High-Purity Refining Production Line |
Self-owned purification process for 98.5%–99.0% HMB-FA, full 80/100/200 custom mesh range |
Replace expensive imported patented HMB-FA raw material, cut brand raw cost by 30%+ |
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Specialized Anti-Hygroscopic Granulation Tech |
Buffered neutralized dry granulation system to solve natural HMB-FA caking pain point |
Improve automatic filling & tableting production yield, upgrade finished product shelf appearance |
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Professional Sour Taste Buffering Modification |
Custom pH neutralization tuning to eliminate sharp acid aftertaste |
Support palatable fruit-flavored stick & chewable premium finished products |
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Full Instant Powder Engineering |
Micronization + agglomeration integrated process for fast cold-water dispersion
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Develop cold instant premium recovery mixes without sediment issue |
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Effervescent & Dairy Special Grade Tuning |
Custom acid-base balanced HMB-FA matching effervescent & milk-based formula systems |
Expand brand product portfolio into effervescent tablets & dairy meal replacement high-margin lines |
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All Current Commercial Dosage Matching Grades |
Capsule / tablet / effervescent / stick pack / bulk premium powder dedicated specs |
Single raw material supplier covering all domestic mass-producible HMB-FA finished formulations |
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End-to-End Premium Recovery OEM & ODM Service |
Custom multi-active high-end compound premix industrialization, formulation pH & stability testing support |
Reduce brand independent high-end formula R&D investment & new product launch cycle |
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Driver Category |
Specific Market Reason |
Risk of Only Selling Commodity CaHMB Powder |
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Premium Profit Margin Expansion |
HMB-FA finished products carry 50%–120% gross premium vs CaHMB; domestic self-produced HMB-FA avoids imported raw material high cost |
Lock brands in low-margin commodity track, unable to enter high-end professional athlete & aging nutrition segments |
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Core End-User Performance Pain Points |
CaHMB slow absorption & cold-water sediment cannot meet elite athlete fast pre/post workout recovery demand; HMB-FA solves absorption & clarity defects |
Low repurchase rate among serious fitness & high-income senior consumers, weak brand premium positioning |
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Diversified High-End Consumer Demand |
Global high-end brands shift to fast-absorption HMB-FA for professional, women’s & elderly segmented premium lines |
Lose high-margin market share to competitors with HMB-FA differentiated portfolios |
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Import Supply Chain Risk |
Imported patented HMB-FA has long lead times, high minimum order & unstable pricing; KEEP domestic HMB-FA stable GMP mass supply |
Brands face stockout risk & uncontrollable raw material cost fluctuation |
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Fully Mature Domestic HMB-FA Upgrade Tech at KEEP |
All buffered, granulated, instant & tablet grades ready for immediate mass production without extra R&D input |
Brands quickly launch differentiated premium HMB-FA lines to capture fast-growing 10.9% CAGR HMB-FA market window |
HMB Free Acid is the fastest-growing premium sub-category within global muscle-protection HMB raw materials, maintaining a 10.9% compound annual growth rate through 2034, with clear absorption & formulation advantages over mainstream CaHMB calcium salt.
While mass-market CaHMB suffers severe price homogenization competition, huge high-margin blue ocean opportunities exist in domestically mature upgraded HMB-FA variants: buffered anti-caking granulation, cold instant agglomerated powder, tablet/effervescent dedicated grades, low-acid dairy compatible specs and full-custom premium multi-active recovery premixes.
KEEP delivers a full-spectrum domestically mass-producible HMB-FA raw material portfolio covering standard high-purity refined powder, moisture-resistant buffered granules, fast-dissolve instant grades, tablet & effervescent exclusive specifications and fully customized elite sports compound premixes.
We support brand partners end-to-end to build differentiated premium HMB-FA product lines across three high-growth premium business tracks: professional elite sports fast recovery, mid-to-high end general fitness nutrition, and luxury middle-aged & elderly anti-sarcopenia supplements, substantially lifting finished product gross margin and global market competitiveness.
