This bundle includes two shades of Physicians Formula's 2-in-1 Eyeliner Serum that works as a liquid eyeliner while delivering a lash-enhancing complex. One is in classic black, and the other in a rich deep brown. Both feature an innovative high-tech Japanese formula that goes on smoothly for defined eyes, while targeting the base of lashes with nutrients and conditioners. The multi-tasking serum is smudge-resistant and water-resistant. As a hypoallergenic, dermatologist-approved product that is also cruelty-free and vegan, this eyeliner serum is safe for sensitive eyes and skin. It brings out the eyes beautifully while nourishing lashes for a boost in appearance. With one in black and one in brown, you can create subtle or bold eye looks that last all day. The two complementary shades allow you to match the liner to your desired style and outfit. This set offers the best of both worlds - the instant definition of liquid liner with the lash enhancement of a serum. It's makeup and skincare combined into one efficient product. Drawing attention to eyes while caring for delicate lashes, this innovative formula epitomizes Physicians Formula's commitment to healthy beauty.