Schwarzkopf Essensity Ammonia Free 3-0 Dark Brown 60 mL + Essensity Oil Developer 1000 mL. Schwarzkopf Essensity Permanent Color. ESSENSITY is the permanent coloration of Schwarzkopf . oil based and free ammonia can get a better result by the power of nature and technology Phytolipid. With this permanent coloration you'll get a real color in addition to a natural intensity and pure softness. Apply the blend without a previous wash. If you wish to dye roots or either lower the tone, start on the nape area. If you wish to dye all the hair, proceed to halves and extremes immediately after application on roots. In the presence of gray, start where there is more and the forehead area. To achieve equality for all the hair it is advisable to apply the mixture all over the hair into thin locks. Schwarzkopf Essensity oil developer (18 Volume) - 5.5% 1000ml What it is: SCHWARZKOPF ESSENSITY Oil Developer What it does: ESSENSITY Color system with Phytolipid Technology boosts color performance. For use with Essensity colours What else you need to know: Essensity Oil Developer with plant based oils and natural beeswax.( Apply the color to your hair according to the instructions.)