Phytocolor safely colours hair with a natural shade, while respecting the scalp. It covers 100% of grey hair from the 1st application. Easy and professional. Perfectly coloured hair in 30 minutes tops. Normal to dry hair. Normal to sensible scalps. Ammonia-free. PPD-free. Resorcin-free. A formula with low allergy potential. The risk of allergy is greatly reduced, while a small possibility of an allergic reaction still remains: anyone prone to allergic reactions is advised to carry out a skin sensitivity test 48 hours before use. Phytocolor does not sting. The light smell is gentle, tuned to botanical notes. The Milk developer and the colouring cream creates a mix that perfectly covers the roots and easily distributes to the ends.