Nourishing treatment for eyelashes and eyebrows that helps strengthen, lengthen, and prevent their loss. Suitable for sparse, thin, and fragile lashes that are very short or grow slowly. Apply the product in the evening to perfectly clean upper and lower lashes, from root to tip, as if it were a mascara. Leave on overnight. Avoid contact with the inside of the eye (rinse thoroughly with water if this occurs). Double-cils is also effective on eyebrows.