Nirvel Acid Dark Steel 6/1 Acid Hair Colour 100ml

Dark steel with intense cool reflects and metallic shine. Acid is the acidic colour line by Nirvel Professional. According to the manufacturer, its acidic pH with antioxidant blueberry extract seals the cuticle, adds shine and improves colour deposit and hold. It does not lift the natural colour and leaves no root effect.

Mix 1 part colour with 1.5 parts Acid 3 vol. developer (60ml + 90ml) and apply on clean, damp hair for 20 minutes. For a softer result, add the same amount of Acid Gloss 00. Always do a sensitivity test 48 hours before.

See all shades in Nirvel Acid hair colours.