In our pursuit of long, voluminous lashes, we’ve tried almost everything, from mascaras at every price point to lash lifts, extensions and false eyelashes. But one of the easiest and most underrated ways to step up your lash game is by applying an eyelash primer. There are tinted formulas, which make your lashes appear fuller and darker before you even add mascara, transparent options that add length and base coats that keep your mascara looking freshly applied all day. Below, we share some of the best eyelash primers to add to your routine.The Best Eyelash Primers to Try for Longer, Fuller LashesMaybelline New York Lash Sensational Sky High Tinted PrimerGive your lashes a subtle black tint with this elongating primer. The serum-infused formula softens lashes with a combination of ceramides and vitamin B5, plus it’s gentle enough for sensitive eyes and contacts wearers. Wear it alone for a natural look or pair it with the Maybelline New York Lash Sensational Sky High Mascara for almost double the volume and length.  Lancôme Cils Booster XL Enhancing Lash & Mascara PrimerCondition your lashes and give them a boost of length with this primer. Infused with vitamins E and B5, it helps improve natural lashes’ thickness, length and curl over time. In addition to wearing it under your mascara, you can wear it overnight as an eyelash mask.  L'Oréal Paris Voluminous Lash Paradise PrimerFor thick, plush lashes, reach for this volumizing primer. The rose oil-enhanced formula does more than just leave lashes fuller — it also helps your mascara stay on for longer. Plus, it’s suitable for sensitive eyes and contact lenses.  Urban Decay Subversion Lash PrimerAchieve a doe-eyed effect with this thickening and conditioning eyelash primer. Vitamin E and panthenol nourish your natural lashes while providing mega volume and length underneath your favorite mascara.  Essence Volume Booster Lash PrimerSwipe this primer on for an extra dose of volume underneath mascara. It’s cruelty-free, ophthalmologist-tested and contains a comforting blend of mango butter and acai oil to soften your lashes. Plus, at only $5, it’s the most affordable option on this list. MILK MAKEUP KUSH Lash PrimerPlump up your lashes with this primer’s thickening, heart-shaped fibers and cannabis sativa seed oil formula. The fibers help fan out your lashes for far-reaching length and volume, while the nourishing ingredients condition your lashes and help fight fallout.  
