I react to most of the grains when they are in soaps...wheat makes me break out in hives, oats, corn, and soy make me itch.
Research is being done, yet Celiac/Gluten Intolerance/Gluten Sensitivity is still very much in it's infancy. I truly do not believe they know enough yet about all the far reaching effects of gluten intolerance. There are so many of us that do react to topical ingredients. The difference between allergies and intolerance's are sometimes hard to figure out. I did find this link:
http://www.foodintol.com/allergyorintolerance.aspQUOTE
Major symptoms of food intolerance (food sensitivity):
1. gastro-intestinal (diarrhea, bloating etc.) and subsequent malabsorption problems like anaemia and osteoporosis
2. respiratory system distress including bronchitis, breathlessness, sinusitis, congestion
miscarriage; infertility in males and females
3. a large number of skin irritations from eczema to dandruff
4. a long list of general body ailments including headache, lethargy, migraine, inability to concentrate, sleep disorders, mouth ulcers, urinary problems, weight fluctuation and obsessive (addictive) eating
You will notice #3 says:
a large number of skin irratations from eczema to dandruffin my opinion, this is telling us we may experience the things we do because of an intolerance. They say allergic reactions happen very quickly and intolerance's take longer to appear. BUT, many of us react to gluten very quickly, so we know this isn't necessarily true either.
I think we each have to evaulate our own systems. We know what bothers us and what doesn't. If i buy a new product and upon use, I immediately feel a hot sensation, hives appear, or itching, then I know I can not use that product and it's gone, never to be used again. Sometimes we have to be our own doctor.