ELASTILash is hypo-allergenic peptide-based solution proven to increase the appearance of thicker, fuller lashes in just weeks. Dermatologist and ophthalmologist-tested will not darken eyelids or change iris pigmentation. Perfect for patients with light eye and skin color. ELASTILash is a patient-friendly product; to use, simply brush the formula to the base of the upper eyelash line each evening before bedtime