After doing further research regarding gluten in hair products and cosmetics, I have learned a few important things since my last post. There have been doctors and gastroenterologists who state that gluten cannot be absorbed through the skin. Many cosmetic and hair product brands also do not clearly state their ingredients on their labels, which makes sense if the gluten in their products won't affect people with an autoimmune disease. There are obvious concerns with lip products, if you lick your lips you can consume the product in small bits at a time, I have written several hair care and cosmetic lines, and about half of the companies respond with clear answers on where their ingredients are derived from.
I also rest completely assured on the subject as I just read an article in Oprah Magazine that a gastroenterologist of the University of California in San Diego said topical products do not affect people with celiac disease or gluten intolerance. My mom and I personally have not experienced any issues using hair products, lotions, or cosmetics that contain gluten. So, enjoy your hair products and makeup (except for maybe lip products with gluten) without the hassle of checking the label!