Naturtint is a hair color company launched in Europe in the early 1990's. It was the "first permanent hair color free of ammonia and featuring plant-based active ingredients."* It is exclusively distributed in the U.S. via International Trade Routes. In addition to no ammonia, Naturtint is also free of parabens, silicones, paraffin, mineral oils, heavy metals, artificial fragrances, SLS, or formaldehyde derivatives.
*Source: Company Website