Clays
The cosmetic properties of these minerals are determined by their physical and physicochemical properties, as well as their chemical composition. Some of the properties that should be highlighted are: high adsorption capacity, large specific surface area, solubility in water, reactivity against acids, high refractive index, high heat retention capacity, opacity, low hardness, astringency and high reflectance.
Due to all these properties, they can be used either as active ingredients or as excipients. So, We can find them as part of different types of formulations: facial, body and hair masks, makeup and solid soaps, to name a few examples. Also due to their opacity and astringency, they can be used in small quantities in emulsions for different purposes: sun products, body lotions, shampoos...