How does this herbal henna colour differ from conventional permanent hair dye?

Conventional permanent dyes use oxidative chemicals (ammonia, peroxide) to open the hair cuticle, remove natural pigment, and deposit synthetic colour deep inside the shaft. This product works differently: the finely milled plant powders — primarily henna along with other Indian herbs — form a paste that coats the outer layer of each strand. The pigments attach to the hair surface and visually deepen or enrich your existing tone rather than replacing it. Because there is no bleaching step, the colour cannot lighten your hair; it only adds a warmer, reddish nuance. The effect is generally softer and more individual, since the final shade depends on your starting colour, porosity, and any previous chemical treatments. Many users also notice that the herbal powders leave hair feeling fuller and smoother after rinsing.