The step that transforms your mascara. Lash Extender Primer by Sarah Fendrich is a conditioning lash primer that extends, volumizes, and boosts the performance of every mascara you own — not just Sarah's. Apply it first and your mascara goes on smoother, lasts longer, and delivers noticeably more length from the very first coat.Formulated for sensitive eyes and completely dye-free, this primer works for all lash types and complements any mascara in your collection. Conditioning primer that boosts length and volume before mascara Compatible with all mascaras — maximizes any formula Dye-free — formulated for sensitive eyes Extends mascara wear for longer-lasting results Lightweight — won't clump or weigh lashes down Cruelty-free — never tested on animals How to Use: Apply Lash Extender Primer to lashes before mascara, starting at the base and wiggling the wand upward through the tips. Allow a few seconds to dry, then immediately apply Mascara Intense on top. The primer creates a coating around each lash, giving mascara more surface to grip for noticeably longer and fuller results.