Donna Bella 24k anti-aging thermal serum is used as an activator with the Bio Mask, and has an instant heating effect when mixed with the mask and applied to your skin. The heated ingredients will open the pores, find their way into the deepest layers of your skin and absorb the oils, toxins, and dirt. This unique activator serum will help you achieve a radiant, fresh, and youthful appearance. Note: this item is not second hand.