Absorbent/mattifier

Ingredients with this function help to reduce greasy shine and make the finish more dry, smooth and "velvety". They work mainly by absorbing excess sebum and moisture from the skin surface, which is why they are especially in demand in mattifying creams, primers, powders, foundation, dry shampoos and scalp products. In decorative cosmetics, such components also improve the distribution of the product, reduce the feeling of stickiness and help make-up look fresher. The European CosIng database classifies absorbent/mattifier as the official cosmetic functions of ingredients, and separately specifies the absorbent function for silica; the FDA also notes that talc in cosmetics can be used to absorb moisture and improve the tactile properties of the product. (single-market-economy.ec.europa.eu)

On the skin, such substances do not "cure" increased oiliness, but temporarily control its external manifestations: they reduce gloss, make pores less visible visually and increase comfort during the day. On the hair and scalp, they absorb sebum at the roots, making the hairstyle look clean and voluminous for longer. In this case, the severity of the effect depends on the shape of the ingredient, the particle size and the general formula of the product. Typical examples are Silica and Kaolin: silica is often used for a light dry finish and sensory enhancement, while kaolin, a mineral clay, is well suited for masks and cleansers where a more pronounced effect of absorbing excess sebum is needed. Information about the cosmetic functions of ingredients is usually checked by manufacturers and specialists using the CosIng database created by the European Commission. (pubchem.ncbi.nlm.nih.gov)