Get it with Sesha Skin Therapy. What makes this skin therapy stand apart from the others is their patented delivery system, known at PET. “P.E.T.® works by solubilizing the active ingredients and temporarily modifying the permeability of the skin. Therefore, when large-molecule active ingredients are combined with P.E.T.®, they are able to pass through the skin cell barrier to reach the deeper layers below the epidermis.” I have been using their clinical line, and I can’t wait to try more. So far the eye cream is my favorite. I also love the thin consistency of the serums and day moisturizer with spf. So get with this science based skin care system, and consult with a hot professor….