Good Essential products are rooted in nature and each of their formulas contain centuries proven east asian herbal blends that have been handed down for centuries through Dr. Kim's lineage of master herbologists. Every product is properly and synergistically formulated to nourish & protect the skin. In Traditional Oriental Medicine, this is called Dui Yao: the art of combining a specific selection of herbal ingredients in order to make each more beneficial than the individual herb alone. Based on centuries of herbal knowledge, they created herbal formulations using powerful ingredients that work together to ensure better absorption and maximum benefit of their healing properties. Good Essentials products are like superfoods for your skin.