ShiseidoShiseido Full Lash Serum

BUY at Birchbox

Brow and lash extensions are pricey and tints are only temporary. But theres still a way to get a strong brow game (were looking at you, Cara Delevingne) and lashes that dont quit. Enter this lash serum, which was created for both brows and lashes. The serum is formulated with Arginine, which is known to help restore the condition of hair, promote growth, and hydrate hairs so theyre full and lush. Plus, it absorbs easily at the root of the hair, leading to faster results.