nt Permanent Hair Color is the first permanent hair color certified by the USDA BioPreferred program, exceeding minimum USDA certified biobased content for hair styling products by using less petroleum-derived and more naturally derived substitutes. The same amazing colors you love, but now with a 100% naturally derived propylene glycol alternative. Everything you need to color is included in each kit, and now with the all-new 1.69-fluid ounce tube of the Naturtint Quinoa Multi-care Mask proven to nourish and help increase color retention by up to 20%! Created by an independently owned, woman-run company in Madrid, Spain, Naturtint has been the leader in scientifically innovative hair color and cleaner hair care for over 25 years. Naturtint?s botanical-inspired formulas contain only the highest quality ingredients and are designed to deliver and maintain radiant color and shine.