Why do different colour bubble-baths always have white bubbles?

Question

=\

I want green bubbles! >.<

Its true though. the only time Ive ever seen non-white bubbles was when I used a normal shampoo on my blue dyed hair.

Answer 1

Bubbles are white because the outside surface of bubbles act like mirrors, reflecting the ambient light in all directions. The ambient light is almost always white light, so the bubbles end up looking white. If you had red light, the bubbles would look red.

But if you put enough blue dye into the soap, the bubbles won&#039;t reflect light as effectively and the color of the soap itself will show.  :)