KORRES ARGAN OIL ADVANCED COLORANT with pigment-lock technology. Permanent Argan Oil Advanced Colorant for full white/grey hair coverage, offering vibrant, long lasting colour while treating and protecting hair against damage.Developed with:• Pigment-lock technology that locks colour in the hair without the use of ammonia_ a controlled oxidation mechanism allows micro-colorants to easily penetrate the hair and once ‘trapped’ inside to undergo oxidation, forming large coloured molecules that offer intense colour which does not fade.• Argan oil and natural Keratin_ act in the deeper hair layers, restore moisture levels and protect against damage.• Oat extract_ rich in B complex vitamins and microminerals, forms a protective film, increasing hair strength and elasticity.