The It's Skin Power 10 Formula LI Effector is a whitening serum enriched with Licorice extract for effective brightening properties. This serum is best used for skin imperfections such as skin spots, freckles and sun-burnt or reddened skin caused by UV rays. The natural plant Licorice is a good catalyst for skin metabolism and it helps reduce production of melanin. It also provides soothing effects to calm and repair irritated and damaged skin. This is best used on dull skin types.