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Unlimit Your Limits. Revlon ColorStay Xtensionnaire Lengthening Mascara extends lashes to the limit. Lightweight, Flexi-Polymer Fibers and a Tapered Brush amplify every lash-delivering extension-like length, bold definition, and intense durability for 2X longer-looking lashes. Serum infused with Pro Vitamin B5 to condition + nourish to keep natural lashes full, long and strong over time. Plus, Adapti-Flex Technology creates flexible wear. Up to 24HR wear that's smudge-proof and flake-proof.