Please join us on a little tour into the world of color pigments. In the final run, the mixture of only two pigment groups determines the color of our hair, namely eumelanin and pheomelanin. Only a minimal amount of the small pheomelanin molecule will cause the red tinge. Quite a bit of this small pigment is however necessary for a gorgeous flaming red head.
In case you or your hair stylist has created the red coloring of your hair, the red color will readily disappear and even slowly leach out when you merely rinse your hair with water. Born redheads certainly know how light will quickly bleach their hair color. This is due to the fact that pheomelanin is degraded faster in the presence of UV light. Mere hair care and protection will not preserve the copper red color. It takes active care to keep the red hair color brilliant.