One of the key functions of the skin is to protect the interior of the body from toxins, injury, etc. While the nanoliposomes that hold the growth factors are quite small, the skin resists the penetration of the product. The Lutronic energy based technology (LaseMD) is optimized to prepare the skin for the KeraFactor serum and enable it to penetrate far more readily than with the skin intact. One study showed that the LaseMD facilitates 5.5 times more skin absorption than without.