Compatibility: The replacement brush head is compatible with all Clari-sonic facial cleansing brush systems such as Mia, Mia 2, Mia 3 (Aria), Pro, Plus, Smart Profile, Alpha Fit, Plus, and Sonic Radiance. Premium Material: The brush head is made of all-natural ingredients to minimize any adverse effects or potential damage to the skin. Ideal for cleaning pores, large pores, or hard-to-reach areas of the face, such as around the nose. Function: Designed for ultra-gentle cleansing, it leaves the skin precise, clean, and radiant. The cleansing effect is 6 times greater than hand cleansing. Tips: We recommend using the brush head every 3 months for best results. We also recommend this product for those with large pores. The deep pore cleansing replacement brush head uses a dual-action, graduated bristle design to remove pore-clogging oil and dirt. High-quality product. It is not manufactured or sold by Clari-sonic, but it has the same performance as the original. If you are not completely satisfied, you can request a replacement or refund.