High-tech formula enhances the appearance of lashes while providing the instant definition of a liquid eyeliner, in one easy step. Lash Boosting complex targets the base of lashes where it is most effective. Innovative and easy to use eye lining tool delivers effortless definition. Visibly Boosts:- Lash Length- Lash Volume- Lash Thickness Instant and Lasting Lash Boosting Results. After 2 weeks 75% of women saw Longer, Fuller and More Enhanced Lashes- After 4 weeks over 91% of women saw Longer, Fuller and More Enhanced Lashes Based on individual perception of results by a panel of female volunteers wearing mascara. HEALTHY BEAUTY: All of our makeup & skin care products are hypoallergenic, safe for sensitive skin & eyes, & made without any of the 150-plus known harsh ingredients found in other personal care items. SENSITIVE SKIN CARE: Physician's Formula offers a full line of skin care & makeup for sensitive skin, including mascaras, lipsticks, concealers, eyeshadow palettes, BB creams, bronzers & primers. ENHANCE & CONDITION: Create classic, bold looks with this jet black liquid eyeliner. Use the eyelash serum alone or under eye makeup day or night. Lash Boosting complex targets the base of lashes. ENHANCE & CONDITION: Create classic, bold looks with this jet black liquid eyeliner. Use the eyelash serum alone or under eye makeup day or night. Lash Boosting complex targets the base of lashes. LASH BOOSTING EYELINER & SERUM: This high-tech 2-in-1 eyeliner & eyelash booster serum delivers the high-pigment, precision definition of a liquid eyeliner while nourishing & conditioning lashes.