Avedas Full Spectrum Demi+ Custom-Deposit Treatment Hair Colour is available in ten naturals shades and ten tones. The shine is vastly improved with certified organic kukui essential oil in combination with certified organic castor and jojoba oils. A customizable processing time is another improvement. Depending on the end result desired, colorists can choose to process five minutes with a five-volume developer (full processing time for a sheer tonal result) or up to 20 minutes with a 10-volume developer for more opaque grey blending. All this is possible with a new gel formula that drives into hair and penetrates without the use of ammonia. The formula itself, true to Aveda, is filled with plant-derived oils including L-arginine, which works as a power booster to increase pH for maximum colour deposit into every strand, which provides lasting results that fade on tone.