Lashes and brows, start to finish. fLASH Eyelash Serum and fLASH Eyebrow Serum go on once daily for longer-looking lashes and fuller-looking brows, and fLASH Happy High-Definition Mascara gives you lifted, defined lashes the second you swipe. Every product in the set is physician-formulated, vegan, and cruelty-free. Lash Serum: You may be