Applying skin care products in the correct order makes them more potent and prevents the products from blocking each other. For example, if you apply oil before a moisturizer, the large molecular size of the oil prevents the moisturizer from ever reaching the skin, thereby rendering it useless. By learning how to layer skincare products correctly, you can maximize the benefits of your skin care regimen, prevent wasting products, and ensure that they work together synergistically. This outlines how to use small molecular-size products that can penetrate the skin deeply and move on to larger molecular sizes that will sit closer to the surface of the skin or atop it.