Why if you wash your hair with colored shampoo the soap suds are always white? Where does the color go?

Do people with blonde hair run a risk of dying their hair on accident by habitually washing their hair with colored shampoo or something, because the color in the shampoo HAS to go somewhere.Why if you wash your hair with colored shampoo the soap suds are always white? Where does the color go?
';White'; as you perceive it is actually a combination of all colours of light mixed together. When soap foams, the many surfaces of the bubbles all reflect light that hits them in all directions, so the light colour that your eyes see is white.





The liquid shampoo of a different colour has a chemical, or combination of chemicals, that are able to absorb different colours of light. Because there are not thousands of reflective surfaces in the liquid, your eyes see only the colour NOT absorbed by the liquid shampoo.Why if you wash your hair with colored shampoo the soap suds are always white? Where does the color go?
The color in shampoo goes down the drain. If you wish to demonstrate this to yourself, get some shampoo and lather it up, then let all the bubbles pop. You'll observe that the resulting stuff is the same color it was before.





Colors added to shampoos and soaps come from dyes and waxes. Many companies use FDA-approved dyes for that purpose - the same stuff that gets used to color food. So in those cases, you certainly have no more worry (probably less) of coloring your hair than if you ate a bag of cheetoes or something. Even waxes have much more affinity for the soap than your hair, so it's going to go only where the soap goes. If the detergent in the shampoo couldn't do that, it wouldn't get the dirty oil out of your hair and you'd be wasting your time using it at all!
To your brain and that's what caused you to ask this question. Get a different shampoo.