Sigma Beauty SigMagic Brush Shampoo Foam 200ml Sigma Beauty SigMagic Brush Shampoo Foam 200ml Clean and condition makeup brushes with Sigma Beauty SigMagic Brush Shampoo Foam. This efficient all-natural cleanser quickly and gently removes tough makeup residue and bacteria from brushes. Ingredients Aqua (Water), Cocos Nucifera (Coconut) Oil, Elaeis Fruit (Palm) Oil, Potassium Hydroxide.