The repairing component y-docosalactone, combined with natural ingredients such as hydrogenated rapeseed, argan oil and macadamia nut oil, provides shine, tone and elasticity. The natural blend of rosemary, lavender, Italian lemon and Valencia orange creates a subtle harmony for light, full-bodied hair. ukas products are sulphate-free, silicone-free, paraben-free, and without artificial colours. A natural derivative, y-docosalactone, is incorporated into all uka shampoos and treatments.