Rosemary Oleoresin, also known as Rosemary Oil Extract or ROE is an oil soluble, natural extract of the leaves of the rosemary plant used to retard 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. Ours is highly concentrated and standardized to 7% carnosic acid for the highest level of activity, making its use at very low percentages both effective and economical. Typically, up to 1%
As with any antioxidant, to be effective Rosemary Oleoresin must be added to oils when they are fresh, before oxidation has started. Additionally, it must be thoroughly dispersed in the oil. As Rosemary Oleoresin is a thick liquid, adequate dispersion can be difficult. We recommend it be predispersed in a small portion of the oil first and this added to the balance of the oil with thorough mixing.
Rosemary Oleoresin will also add shelf life to Sugar and Salt Scrubs, Balms and Moisturisers (Creams and Lotions) and we suggest adding during the cool down phase or when you add the Preservative to your formula.
Usage Rate: 0.1% - 1%