To obtain a more natural effect, apply Ultimate Cover Concealer before the foundation, directly on the area to be covered, using a flat brush such as Eye Brush by Naj Oleari or taping with the tip of the fingers.
Apply little product at a time, paying attention to blurred the outlines thoroughly, until you reach the desired coverage.
Ultimate Cover Concealer, with the exception of the green reference, can be used even after the foundation and before the powder to correct evident imperfections.