Crystal-C is a professional-grade serum that contains Alpha-Arbutin, Licorice Root Extract, and Centella Asiatica that synergistically work together to target dark spots, hyperpigmentation, and acne scars while soothing the skin. Alpha Arbutin and Licorice Extract are both known to be excellent skin brighteners while Centella Asiatica is a potent antioxidant that can hydrate and soothe the skin. This serum is great for all skin types, including the sensitive type.