According to the product description of the FOREO LUNA mini 2 and LUNA mini 3, they are ultra-hygienic facial cleansing brushes that use T-Sonic pulsations to effectively cleanse deep below the skins surface. They are suitable for all skin types and can gently remove dirt, oil, and sweat residue, which can help prevent blemish formation. However, it is important to note that the LUNA mini 2 should not be used with scrubs, clay, silicone, or granular exfoliants, as this can damage the silicone of the device. There is no information about ingredients or materials in the search results.