Now you can purchase Brush Heads in convenient packs of two. These Twin-Packs are valued at $50, so you'll save $10 for every set you purchase. An ultra-soft brush for those with delicate or extra-sensitive skin and for skin sensitivities like rosacea and acne-prone skin. All CLARISONIC brush heads are made from a nonporous, soft elastomeric material, resistant to bacterial attachment. All brush heads are precision-designed to oscillate bi-directionally at a sonic frequency. For use with the CLARISONIC skin care brush. Made in USA.