American Crew Precision Blend developer 15% is formulated for Precision Blend colorations.

How to use:

• Mix developer with desired color for a 1:1 ratio

WARNING

This product is intended for use by qualified persons only. Use by non-licensed persons may result in unsatisfactory performance. Mat&Max will not be held responsible by anyone who buys and/or use this product in breach of this warning. Hair color related products, such as demi-permanent colors, permanent colors, toners, peroxides and bleaches may cause allergic reactions, which in rare instances can be severe. Conduct hypersensitivity and allergic patch test 48 hours prior to each application. Read and follow instructions carefully. These products must not be used on eyelashes or eyebrows. To do so may cause blindness. Wear suitable gloves. Keep out of reach of children.