The increase in environmental and health hazards in the manufacture of dyes and its use throughout world is a major concern. This work was made possible while investigating the alternative to the synthetic and semi synthetic dyes. The composition of 100% herbal hair dye consist of 30% aqueous extract of Cymphomandra betacea containing 35% flavanoid and 10% tannins, 30% aqueous extract of Tagetes erecta containing 20% carotenoid and 40% Aloe vera gel, as natural mordant, containing 0.3% polysaccharide and 98.5% water. The present study is also directed to synergistic hair dye compositions containing aqueous extract of Cymphomandra betacea and aqueous extract of Tagetes erecta blended with Aloe vera gel, a natural mordant. Further, this studyis directed to a method for coloring hair, by applying an effective amount of the herbal hair dye composition with distilled water as an acceptable carrier. The herbal hair dye shows permanent dying to the applied regions of human hair without causing any hair damage or hair loss or skin irritation when compared to the synthetic and semi synthetic dyes. The active constituent also prevents the hair from damage caused by photoreaction and pollution. This formulation proves to be a vital alternative for the synthetic and semi synthetic dyes.