I thought coloured bubbles would add a bit of excitement for my kids but the bubbles weren't any more coloured than ordinary bubble mixture bubbles, in fact all that is coloured is the mixture in the bottle (not the bubbles) and if you read the important ‘read before you use’ label stuck to the side of the bottle, the mixture stains, may stain clothes and is recommended to be used outside on the grass in an open area. The kids were a little disappointed as they had expected pink’ish coloured bubbles. My son accidentally tipped most of the mixture out while blowing bubbles, fortunately most of it landed on the grass and missed the concrete path. The rest I tipped down the sink. Not worth the mess and risk of staining, like the brand but will stick to plain bubbles.