Allergic Reactions

Occasionally someone will have an allergic reaction to a preparation--natural or otherwise. If you know or suspect you are sensitive to an ingredient in a particular recipe, don't chance it. And while any food allergy you have may not manifest itself dermatologically, you should be aware of your body and its sensitivities. If you have reason to be concerned about a potential reaction, test a small patch of skin with a preparation before applying it to your hair and scalp. Your skin is just as capable of absorbing substances and chemicals as your digestive system is.
By Richard Stein.