In its natural state, sericin is very difficult to incorporate into a cosmetic product in a high concentration due to its thick, viscious nature that affects consistency and absorption. Serisilk employs a special extraction method which allows for the production of the highest concentration of silk sericin possible in a skincare product, guaranteeing its efficiency as a powerful skincare ingredient and allowing it to show maximum benefit on your skin.Additionally, sericin's molecular integrity can easily be compromised through poor manufacturing processes, denaturing and destroying the molecular structure through excess heat treatment and pH imbalances. Alexandr&Co's Serisilk contains sericin of a perfect molecular weight that provides maximum results, while remaining small enough to properly penetrate deep into skin tissues.