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This is a crosslinked (phosphate ester) rise starch. Natural and COSMOS certified.
INCI Name: Distarch phosphate
CAS #: 55963-33-2
EINECS #: 232-679-6
Rice starch has the smallest particle size compared to potato and corn starch . It has a particle size much smaller than mica and an excellent binding capacity of oils. The crosslinked rice starch has the advantage of improved absorbency but because it doesn't swell by absorbing oil or water, it doesn't clog the skin pores even by repeated everyday use. This makes it an ideal ingredient in all skin care products where talcum or mica are used.
Apart from mattifying and a good attachment to skin, it imparts a silky feel to all skin care products specially: baby powder, deodorants, facial powder, mineral make-up, loose and pressed powder, rouge or eye shadow.
In emulsions and creams, modified rice starch improves the flow property, reduces shine and improves stability.
Application in emulsions: disperse the starch in the cold water phase or cold oil phase before heating and before blending the oil and water phase (dispersion in the oil phase is a little bit more tricky but the outcome has a nicer texture). In balms, butters (and listick) predisperse the starch in a part of the oil phase and add it after waxes and butters are melted.
Dosage: 0,5-5,0% in emulsions. Up to 100% in powders.