Because it doesn't need the same high-quality cocoons that would be used in fabric, the company can use cocoons that would otherwise be wasted.
To liquidize the silk, the company found a way to first discard the gluelike coating of the original silk fiber, which can cause an allergic reaction when it comes into contact with skin. This leaves the fibroin, the pure silk fiber. Since the fiber alone has a molecular size that helps it penetrate into the skin, it works better than hydrolyzed silk, which contains bigger molecules that don't penetrate as deeply in the skin. It has beneficial properties too.