Developed primarily for anti-aging care*, Proro’s Queens Essence is a serum formulated with a high concentration (5.33%) of human stem cell conditioned medium. Also used in regenerative medicine, the conditioned medium contains cytokines, which are cell-signaling molecules that help in increasing and growing cells, as well as over 500 kinds of protein components that make up tissues such as collagen and hyaluronic acid. When applied to the skin, human stem cell conditioned medium is said to be effective in anti-aging care and improving skin problems by activating the skin cells, restoring moisture and regenerating the skin. The formulation is quite simple. While water is commonly used as a base ingredient in many cosmetics, this product doesn’t contain water at all and uses 100% natural birch sap from Hokkaido instead. In addition to being rich in minerals and amino acids, birch sap possesses molecular structures that are small enough to penetrate into the skin, so there is no need to use osmotic agents. Also, birch sap can be collected without causing damage to the tree or its growth.
Although preservatives are essential to prevent bacterial growth because human stem cell conditioned medium is a bio-product, Queens Essence has minimized the use of preservatives. Using the essence right after cleansing, it enhances the penetration of other skincare products. Also, the product can be used on all skin types including sensitive and allergic skin without causing skin irritation. By continuous use, you can expect to maintain firming, moisturizing and beautiful skin even after 10 or 20 years. Its smooth texture like lotion is easy-to-use and does not cause damage on sewage systems or the environment when rinsed off.