Mineral make-up ingredients: Magnesium stearate

Ah, finally back to molecules for my illustrations! Magnesium stearate (or octadecanoic acid) is a metallic soap that insoluble in water. It’s all about the adhesion with this ingredient. Because it repels water, it will keep your products on your skin all day long, and because it’ll absorb oils, it’s a a good choice for…