Ossat Naturals Curling Custard. Keep your hair frizz-free and shiny with Curling Custard from OSSAT Naturals. Containing plant protein for continuous strengthening, this product provides lasting definition and hold while keeping your curls, coils, and wave hydrated and bouncy! Intensify curl definition without sticky, flaky residue. Free from parabens, paraffin, petrolatum, and mineral oil.