This product has a nickname Stewardess Mascara for it is most popularly used by the international flight attendants who need their mascara to last the entire day. It is waterproof and very easy to apply. It leaves no residue and it coats with fiber immediately after application to prevent blistering and powder flying. Ideal for those with sensitive eyes. Recommended even for those with lash lifts or even extensions for it is waterbased product and doesn't interfere with extension glue. Hypoallergic ingredients and no eye irritation.