Egg Membrane Powder – EGGCAL-ESM™ The membrane of an egg, also known as the eggshell membrane or eggshell film, is a thin, transparent layer that lines the inside of an eggshell. While it may seem like a small and insignificant part of an egg, the egg membrane actually has several benefits and uses. 1. Joint Health: Eggshell membrane is rich in collagen, glucosamine, chondroitin s... https://caltronclays.com/