The developers of ELEGY have a percentage of oxygen that varies from 3% of the activator to 12% to the developer 40 vol.

ACTIVATOR ideal for light coatings, for tone-on-tone colors DEVELOPER 20 strengthens the base color, lightens a couple of tones, ideal for covering white hair DEVELOPER 30 enhances the reflections, excellent for demanding roofs, lightens up to three tones.

DEVELOPER 40 matched with superschiarenti covers white hair, lightens up to four tones