How true is it that when you color your grey hair, you will grow more grey hair faster than not coloring. I have been getting different answers from the web. I need your opinion. Thank you.
It’s not true at all.
Hair color is the result of pigmentation due to naturally occurring chemicals (primarily melanin). These chemicals are present at different levels, thus giving hair its distinctive color. The more melanin present, the darker the hair; the less melanin, the lighter the hair. Hair color changes as we age, going from their natural color to gray and then white. The color change occurs when melanin is no longer produced in the hair root and new hair grows without pigment. Coloring the hair has no effect on the rate of graying and on the deposition of melanin in the hair shaft — it just affects the hair above the skin.