Shampoos, conditioner, shower gel all come in different colour!!!So why is the lather always white!!!!?

From Wikipedia:





';Lather is a foam made of small soap bubbles. Lather is used for shaving to prevent the razor from cutting the skin and making razor cuts smoother by reducing friction between the blade and skin.





';The most general definition of foam is a substance that is formed by trapping many gas bubbles in a liquid.';





Therefore, what you are really seeing is a lot of air (light), which has no color, trapped inside a bubble. Since the shampoo or shower gel is now just a very fine shell around this bubble, its color no longer matters -- it is spread so thin as to be virtually invisible. Like with snow, you are simply seeing the reflection of light off all the surfaces of the tiny bubbles in the foam scattered around, bouncing back and combining, making the color white.





From How stuff works:


';Basically, all the crystals bounce the light all around so that it comes right back out of the snow pile. It does the same thing to all the different light frequencies, so all colors of light are bounced back out. The ';color'; of all the frequencies in the visible spectrum combined in equal measure is white, so this is the color we see in snow, ';Shampoos, conditioner, shower gel all come in different colour!!!So why is the lather always white!!!!?
Do you really want to wash your hair in brown or green lather?Shampoos, conditioner, shower gel all come in different colour!!!So why is the lather always white!!!!?
Good Question!!! I dont know!!!
because.
I think the products must have a white soap base. I have wondered the same thing, but I don't stay awake worrying about it. I'll watch your answers, maybe this conundrum will be solved.