Cetyl Myristoleate (CMO).
Joint lubricant. Discovered in mice. A waxy lipid ester taken daily for joint comfort and easier movement. Digestion splits it into myristoleic acid and cetyl alcohol, which is what your body absorbs.
Reviewed March 2026
- Category
- Compound
- Also filed under
- JointsLubricationFlexibility
What Cetyl Myristoleate (CMO) is, and what it does.
- Does it work
- Suits active people and older adults who want a fat-based daily option for joint comfort. The human record is thin, at three records on file at Europe PMC.
- How much to take
- Start with 350 to 700mg a day with a meal that has fat in it. That band is the daily maintenance amount; the 1,000mg used in studies is a research condition.
- Time to feel it
- Four to eight weeks of daily use with food. Reported change in joint comfort builds gradually across that window rather than arriving in the first few days.
- The first dose
- Day one is quiet. It's a waxy lipid that pancreatic enzymes have to split before anything is absorbed, so the job on day one is taking it with a meal that has fat in it.
- With regular use
- Over one to two months of daily use, people who respond describe stairs and morning stiffness feeling easier. Longer human follow-up has not been published.
- How well tolerated
- Well tolerated in the small human record, with occasional loose stools or stomach upset from the oil base. Check with your clinician if you take a fat-absorption medicine.
- How it feels
- Undramatic. People who respond describe stairs and first-thing stiffness feeling easier over weeks, rather than any sensation in the hours after a dose.
- The overlooked benefit
- The single double bond in the myristoleate chain oxidises, so an oil base with an antioxidant and a cupboard away from heat and light keep the ester intact.
350 to 700mg a day is where Cetyl Myristoleate (CMO) works.
Source: J Rheumatol. 2002;29(8):1708-1712. CMO for joint pain.
The proof, claim by claim.
These words describe the research, not the molecule's worth. Research strength is how much work stands behind one claim, and it is never a product score.
Based on 5 human trials.
- Joint comfortRandomised trial
- Knee range of motionRandomised trial
- Incorporation of fatty acids into membrane phospholipidsIn vitro study
Questions people ask about Cetyl Myristoleate (CMO).
- When should I take it?
- Timing matters less than consistency. Pick a time that works for you and take it daily.
- Can I take it with other supplements?
- Usually fine. The main thing to watch is not doubling up on the same ingredient from different products. If you're on prescription meds, check with your pharmacist first.
- Any side effects to watch for?
- Most people tolerate it well at recommended doses. GI upset is the most common complaint with any supplement. Start with a lower dose and work up. If something feels off, stop and reassess.
- Who benefits most from this?
- People who've already covered the basics (diet, sleep, exercise) and want to fine-tune. It's not essential, but could be worthwhile for the right person.
Why these belong in the same formula. Each row says what the basis is, from settled biochemistry through to a trial that measured the pair.
Cetyl myristoleate is a wax type fatty acid ester, so uptake runs through the fat absorption route and lipase has to hydrolyse the ester bond first. Taking it with lipase containing enzymes and a fat containing meal follows ordinary lipid pharmacology.
Cetyl myristoleate is a wax ester with essentially no water solubility, so a medium-chain triglyceride carrier keeps it dissolved and presents it to lipase and bile for uptake.
Curcumin acts on NF-kB signalling and needs a lipid phase to dissolve in, which the cetylated fatty acid provides in the same capsule.
Cetyl myristoleate is itself a cetylated monounsaturated fatty acid, and marine omega-3s shift the same membrane fatty acid pool that feeds eicosanoid and resolvin production.
Cetyl myristoleate is the ester of myristoleic acid with cetyl alcohol. Pancreatic lipase and carboxyl ester hydrolase cleave that bond in the small intestine, releasing the free fatty acid and the fatty alcohol. Anything that supports normal lipolysis therefore stands upstream of whatever the released fatty acid does.
A long-chain fatty acid ester is essentially insoluble in water and depends on bile salt micelles to reach the intestinal brush border. Supplemental bile components are used in formulations aimed at people with limited bile output. The mechanism is standard lipid absorption, not something specific to this molecule.
Phospholipids emulsify a waxy ester into fine droplets, which raises the surface area available to lipase. Lecithin is the usual choice in softgels for exactly this reason. The benefit is on dispersion and dissolution rather than on any downstream action.
Phosphatidylcholine is the principal emulsifying phospholipid in bile and in lecithin preparations. Formulating a waxy ester with it produces a dispersion that survives gastric emptying better than the neat wax. This is a delivery role.
Myristoleic acid is monounsaturated, so the ester is oxidisable during storage and in the gut. Tocopherols are the standard chain-breaking antioxidant added to oil-phase supplements to slow that. The pairing protects the ingredient rather than adding an effect of its own.
Astaxanthin sits in the lipid phase and quenches radicals within it, which is where an unsaturated ester is vulnerable. Formulators sometimes pair it with fatty acid oils to slow peroxide formation. Its contribution here is to the oil phase, and it is not evidence of a joint physiological effect.
Cetylated fatty acid preparations and glucosamine appear together in products aimed at joint comfort and mobility during activity. Their proposed mechanisms differ: one is a lipid incorporated into membranes, the other a substrate for glycosaminoglycan synthesis. Read the pairing as formulation practice rather than a tested combination.
MSM is a small sulfur donor that dissolves in water, while cetyl myristoleate is a wax that needs a lipid vehicle. They occupy different phases of a formula and are combined for that convenience as much as anything. No combination measurement is cited.
Chondroitin is a large sulfated polysaccharide with its own absorption limits, and it sits in the aqueous phase. Combining it with a lipid ester means the two are handled by completely separate routes. The pairing is conventional rather than demonstrated.
Boswellic acids are poorly water soluble and absorb better with dietary fat, the same constraint that applies to a fatty acid ester. A shared oil phase serves both. This is a delivery observation, not a claim about combined action.
Collagen peptides supply amino acids and small peptides absorbed in the aqueous phase. A cetylated fatty acid is absorbed with lipids. Nothing links them mechanistically, and the combination is a product design choice.
Hyaluronic acid is a hydrophilic polysaccharide with its own absorption profile. It is included in the same category of products but acts through a different route from a lipid ester. No joint measurement is cited here.
Piperine slows several intestinal and hepatic metabolising enzymes and can raise plasma levels of co-administered compounds. Whether that applies to a fatty acid ester absorbed through the lymphatic route is unclear, since lipids largely bypass first-pass metabolism. Read it as a mechanistic possibility, not a measured effect for this ingredient.
Both are taken up as part of mixed micelles, re-esterified in the enterocyte and packaged into chylomicrons. At high combined intakes they draw on the same handling capacity, which is a dilution rather than an antagonism. In practice the doses used are far below any saturation of that pathway.
Nothing specific on file for Cetyl Myristoleate (CMO). Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.What Cetyl Myristoleate (CMO) actually does.
Cetyl myristoleate is a wax ester formed between cetyl alcohol, a sixteen-carbon saturated fatty alcohol, and myristoleic acid, a fourteen-carbon monounsaturated fatty acid with the double bond at the omega-5 position.
The ester bond is cleaved by pancreatic lipase and carboxyl ester hydrolase in the small intestine, so the molecule delivers myristoleic acid and cetyl alcohol rather than acting as the intact ester after absorption.
As a long-chain lipid it requires bile salt micelles for uptake, which is why it is taken with food containing fat and formulated in an oil or softgel base.
Absorbed long-chain fatty acids are re-esterified in the enterocyte and enter circulation through chylomicrons and the lymphatic route rather than the portal vein.
Where Cetyl Myristoleate (CMO) comes from.
It is made in a factory by joining a fatty acid to a fatty alcohol, both of which come from ordinary fats and oils. The resulting waxy ester is cleaned up and tested to confirm how much of it is there. Some products sell the single ester, others sell a mixture of related ones.
Chemically synthesised. The molecule is identical to the one a plant or an animal makes, and building it deliberately means a known purity, a fixed dose and no crop contaminants. For several nutrients this is the only route that reaches a usable amount.
Myristoleic acid is obtained from fatty acid fractions of plant or animal fats; cetyl alcohol is produced by reducing palmitic acid, commonly of palm or coconut origin.
The acid and the alcohol are joined under acid catalysis or by an enzymatic route, with water removed to drive the reaction toward the ester.
Catalyst residues, unreacted acid and alcohol are removed by washing and vacuum distillation or crystallisation.
Gas chromatography establishes the percentage of cetyl myristoleate and the profile of the other cetylated esters present.
The purified ester is filled as a wax into softgels, dispersed in a carrier oil, or adsorbed onto an inert carrier for dry filling.
Getting Cetyl Myristoleate (CMO) from food.
The whole-food sources on file. A supplement closes the gap, it does not replace dinner.
A gram-for-gram figure (how much of each you would eat to match a dose) will appear here once it is sourced and reviewed. This page will not print a number it cannot cite.
The forms it comes in.
The essence, in one line each.
- A synthesis of the strongest available evidence of 53 randomised nutrition trials for knee joint comfort rated the evidence behind cetyl myristoleate as limited, below avocado soybean unsaponifiables (good) and methylsulfonylmethane (moderate).Systematic review. Ameye and Chee, 2006 (Arthritis Research and Therapy). PMID 16859534 â
- In a 28-person, 12-week dose-finding trial in adults with mild knee joint pain, oral cis-9-cetylmyristoleate blends lowered pain and WOMAC scores versus a starch placebo at the 100% and 62.4% fatty acid blends, while the 80% blend did not separate from placebo.Randomised trial. Lee et al., 2017 (Medicine). PMID 28248869 â
These are the studies our verdict leans on, chosen from the 11 we read for Cetyl Myristoleate (CMO). The full linked list is below.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.