What it is: an ultra-fine, water-proof liquid eyeliner made with the Blackest of black pigments to allow the ultimate flow-through application with our fast ink-dry finish. Why It's Good for you: enriched with a boosting complex to strengthen and condition for improved and healthy lashes. Key ingredients: waterproof complex lash-conditioning serum peptides Skin Type: Combination. Key ingredients: waterproof complex, Lash-conditioning serum, peptides. Lash-boosting complex applied at the base of lashes is most effective in improving lash appearance. High-tech, waterproof formula enhances the appearance of lashes while providing the definition of liquid eyeliner.