I have wavy hair. A perm would fry my hair. I don't know if it's just me, but do most celiacs suffer from dry and brittle hair?
An allergy skin prick test also showed an allergy to wheat. After I take a shower, I noticed that i sometimes get a rash on my back. So, maybe it's the wheat or gluten in the shampoo. I would love to use conditioner with gluten in it since it conditions much better. However, I have been dealing with hair loss. Maybe the gluten in shampoo/conditioner has been contributing to it. A doctor told me that she read studies that showed gluten shampoo/conditioner made hair fall out in celiacs. That's why I stopped using it.
Gluten needs to be ingested to effect a Celiac. A wheat allergy is completely different. The only way shampoo or conditioner could effect a Celiac is if you swallow it. The biggest contributor to hair falling out I know is either thyroid disease or malnutrition.