Topiclear Serum. Topiclear has elaborated, a new potent whitening serum to lighten,smooth and even out complexion. Works well on elbows and knees, is effective against age spots, freckles and scars. Cleanse your skin with Topiclear soap before using Topiclear Serum. Sun exposure should be limited by using sunblock and/or protective clothing. Cleanse your skin with Topiclear soap before using Topiclear serum.