Cetyl myristoleate (CMO) is a synthetic ester made from cetyl alcohol and myristoleic acid. It does not occur in large amounts in nature. Manufacturers produce it in a lab for use in supplements.
People take CMO to support normal joint function and flexibility. The evidence for its benefits is limited. Still, many use it for joint comfort.
Typical supplements come as softgels, taken by mouth with meals to help absorption. Follow the product label for timing and dosage, as these vary.
CMO itself has no well-documented major drug interactions. However, any fatty acid supplement might increase bleeding risk if you take blood thinners or antiplatelet drugs. Talk to your doctor before use if you are pregnant, nursing, or scheduled for surgery.