ES Permanent Color Cream has a unique color-fixing and conditioning formula with low ammonia content which gives hair natural, pliant look after dyeing, and provides a long-lasting and shining color effect. There is variety of colors and mix-tones for your selection to create brilliant personalized color style. Usage: 1. Mix with ES Developer at the ratio of 1:1, for shades higher than 8, the recommanded ratio is 1:1.5. 2. Put Leave color on the hair for 30 minutes. Heating is not necessary if temperature is above 24℃. Caution: Professional use only. Allergy test is strongly recommended before dyeing. This product is for hair color use only. It might have accidental injure if applied to other parts. Rinse with much water if it comes to eyes accidentally. Keep out of reach of children.