Sepiplus 400 (INCI: Polyacrylate 13 (and) Polyisobutene (and) Polysorbate 20) is a neat emulsifier that can be used cold to emulsify up to 50% oils in a lotion! It comes as a thick, opaque, pearly liquid that can be used as the sole emulsifier at 0.5% to 3% or as a thickener and stabilizer in a…