Is laser treatment the only solution to diminish dark spots? Eucerin decided to put this challenge to a test on a set of twins. One twin undergoes laser treatment while the other uses UltraWHITE SPOTLESS for 4 weeks. Laser treatment is not the only solution to diminish dark spots. Dark spots can be diminished with Eucerin UltraWHITE SPOTLESS. Eucerin gently and effectively lightens skin. <br /> <br />NEW Eucerin UltraWHITE SPOTLESS with Thiamidol, proven to be 10x more powerful and effective at whitening.