Brush Research BC25860BC FLEX-HONE®, 2-5/8" (66.7mm) Diameter, 60 Grit, Boron Carbide, for Medium to High Carbon Steels and Heat-Treated Steels to 50 Rc

ILIA's Limitless Lash Mascara is a non-toxic, cruelty-free, and clean mascara that claims to create length, eliminate clumping and stay on all day. It features a unique comb-like brush that requires a little bit of practice to get used to. According to customer reviews, the mascara does deliver on its promises of creating length and preventing clumps, making it a versatile product that eliminates the need for using multiple mascaras. It also appears to be gentle, easy to wash off, and free of harsh chemicals, making it a preferred option for many customers with sensitive eyes or those looking for clean beauty products. However, some customers have noted that their product arrived half-empty, indicating a potential office in quality control. Some other downsides include a slightly drying formula, a strong chemical smell for some users, and a more brown-black color that doesn't provide enough volume or length as expected. In general, ILIA's Limitless Lash Mascara appears to be a solid choice for clean beauty enthusiasts looking for lengthening and clump-free mascara, although it may not work for everyone's preferences or expectations.