The following antioxidants can be added to natural and organic oils to help prevent and retard oxidation and rancidity.


Rosemary Oleoresin, also known as Rosemary Oil Extract or ROE is an oil soluble, natural extract used to prevent oxidation and delay rancidity in natural oils. Its potent antioxidant properties are attributed in large part to carnosic acid, one of its major constituents.

Rosemary Oleoresin is available with varying levels of carnosic acid. We use a highly concentrated extract standardized to 7% carnosic acid for the highest level of activity, making its use at very, very low percentages very effective.

In addition to Carnosic Acid, Rosemary Oleoresin also contains Rosmarinic Acid, Rosmaridiphenol, Carnosol, Rosmanol, and Rosmaridiquinone.

As with any antioxidant, to be effective Rosemary Oleoresin must be added to oils when they are fresh, before oxidation has started.

Rosemary Oleoresin also demonstrates antimicrobial characteristics. Rosemary Oleoresin can function as part of a preservative system, but is not a broad-spectrum antimicrobial preservative.

Rosemary Oleoresin (ROE) has a very mild herbaceous odor which is generally unnoticeable when used at recommended usage levels.

INCI: Rosmarinus Officinalis (Rosemary) Leaf Extract.



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