Question: Why is it no matter what colour bubble bath you use the bubbles are still always white?

Anna Scaife answered on 17 Nov 2014:

Super question. I think this is because of the lights in your bathroom… When you get bubbles the outside layer of each bubble is transparent, but not *perfectly* transparent. That means that it doesn’t let all the light through and it acts like a mirror for the rest, so it reflects back some of the light that’s falling on it. The light from most light bulbs is white light, so that’s what you see. If you replaced the lightbulb in your bathroom with a different colour, like red or green, then your bubbles would appear that colour instead 🙂