The attached Safety Data Sheet is a great resource for learning about product ingredients, potential hazards, and first aid measures. If you suspect you are allergic or sensitive to any Naturtint products, please discontinue use immediately and take this SDS to review with a trusted medical professional, i.e., your doctor or dermatologist.
If you suspect that you are allergic to Permanent Hair Color, please do not use this type of product until after consulting a medical professional. Hair colorants are known skin sensitizers, and an allergy can develop anytime. Please perform the skin sensitivity test 48 hours before each application of hair color.