Signal White Now Soft Toothbrush 1'S This toothbrush is designed with soft bristles that gently clean and whiten your teeth, providing a smooth and comfortable brushing experience. In fact, studies have shown that our toothbrush removes up to 90% of surface stains in just 1 week. Say goodbye to yellowing and hello to a brighter, healthier smile with Signal White Now Soft Toothbrush 1'S.