Dye with a formula that provides maximum colouration and protection to the hair, giving it shine and softness and facilitating the natural balance of the scalp. Its formula is enriched with natural ingredients that facilitate a natural protection of the hair and scalp. People sensitive to PPD may also be sensitive to other ingredients in the Corpore Sano formula. The dyes contain another phenylenediamine, namely "Toluene -2,5-diamine sulfate". A sensitivity test should be performed 48 hours before applying the dye.