As with all self-tanners you need to be careful about turning yourself into an oopma loompa, but if you follow the Clarins' directions, better measure of success should be achieved:
For a more radiant and even result, exfoliate skin the night before. Apply a small amount of self tanner with quick, light sweeping motions (avoiding the eyebrows and hairline). Gently wipe elbows, knees and heels with a tissue, as these areas can turn a darker colour. Wash hands and nails thoroughly after application. Wait a few minutes before dressing.