A fatty acid, not a sugar
Glucosamine and chondroitin are sugar-based compounds. Cetyl myristoleate is a fatty acid ester — it sits in the same lipid family as the substances that help keep joint surfaces slick and cushioned.
Monounsaturated fatty acid · Joint support compound
Cetyl myristoleate,
Cetyl myristoleate,
the joint lipid,
explained plainly.
A naturally derived monounsaturated fatty acid studied for its role in helping cushion and lubricate joints — and the science most supplement labels never bother to explain.
The short version
Most joint supplements borrow from the same short list. This one works differently.
Cetyl myristoleate (sometimes written CMO, and used in branded form as CM8®) is the cetyl ester of myristoleic acid. Rather than acting as a building block the way glucosamine does, it behaves like a lipid — the category of the body’s own joint-cushioning and lubricating chemistry. Below is the honest, plain-language breakdown.
Monounsaturated by structure
One double bond defines it. That single point of unsaturation puts it alongside olive oil chemically, and apart from the polyunsaturated profile of fish-oil omega-3s — a distinction with real implications.
Studied for comfort & mobility
Early clinical work explored cetyl myristoleate for joint comfort and range of motion. We summarize what those studies actually measured — and what they didn’t — on the research page.
Same compound · two audiences
Whether the stiff joints are yours or your dog’s.
The chemistry doesn’t change across species — the formulation does. Here’s where to go depending on who you’re looking after.
Flexcin
For people
Joint support for an active life
How cetyl myristoleate is used in human joint formulas, alongside MSM, collagen, and glucosamine — and what to look for on a label.
Explore for people → FlexPet For dogs & catsMobility support for pets
Aging dogs slow down. Cetyl myristoleate is used in pet joint chews to support comfort and the kind of movement that keeps tails wagging.
Explore for pets →Grounded in the literature
We cite the studies, and we read the fine print.
Cetyl myristoleate first drew attention through joint-comfort research in the late 1990s. We lay out the key studies, their sample sizes, and their limits — so you can judge the evidence yourself instead of taking a label’s word for it.
1990sFirst peer-reviewed joint-comfort studies on cetyl myristoleate
C16:C14:1Cetyl (saturated) ester of myristoleic (monounsaturated) acid