Pearl Drops Instant White Plus Get whiter teeth in search immediately after a brush and a brighter, whiter smile in just a week! How does it work? Pearl Drops Instant White Moreover, with natural pearls, works in two ways to improve, whiten and brighten your smile. The unique blend of polishing agents in the bleaching system accelerates 4D White and helps lift stains and plaque, while the Pro-Shine complex and delicate pink tint gives a whitening and polished optical effect immediately, perfect for a finishing touch. essential flouride strengthens tooth enamel and protects against decay.