SUNZnO-OLEO200 is a non-nano zinc oxide grade that features a particle size of 200um, specifically formulated to offer effective UV protection in sun care formulations.
It utilizes a natural cetyl alcohol surface treatment. The rod shape of this zinc oxide contributes to UV protection while reducing the whitening effect and increasing transparency, surpassing certain nano grades of zinc oxide.
The OLEO coating is more stable compared to fatty acid coatings, due to the ester functional group being susceptible to hydrolysis. Hydrolysis of this group typically creates a bad odor, as well as yellowing by oxidation.