Typically, your cell membranes will only allow fat-soluble nutrients through the cells, unless it’s a molecule that your cell recognizes and has specific transporters to take them inside. Liposomes can merge with your cell membranes and bring almost any molecule to enter your cells and penetrate the skin layers. 

Your skin also has a keratinous layer called the stratum corneum. This keratin, the material that strengthens your nails and makes them waterproof, is permeable to very few things. The liposomal delivery system helps transport our powerful anti-aging ingredients past the stratum corneum.