Comfortable nipple concealers give you an ultra smooth appearance! 1 Reusable Pair – reuse up to 25 times. Pesky perkies can pop up at the least opportune moments. Meet Hollywood Silicone CoverUp, which are self-adhesive, hypoallergenic and comfortable nipple covers. The contour shape boasts a perfectly engineered tapered edge to give you that ultra-smooth appearance.