Quote Originally Posted by jezebel17 View Post
I applied some of the cinnamon extract on a small area where I have some thinning last night and so far I have no irritation.
these are the ingredients in the formula:cinnamon extract, vitamin e, D-panthenol and natural oils.
jezebel

Since you have had no irritation, you are not allergic to it and from the ingredient list, the cinnamon is diluted enough not to be a problem.

Good luck!