Were you one of those kids who tried to add food coloring to ordinary bubble solution to make colored bubbles? Food coloring won't give you bright bubbles, and even if it did, they would cause stains. Here's a recipe for pink or blue colored bubbles, based on disappearing ink, so the bubbles won't stain surfaces when they land.

Safety First

Please don't drink the bubble solution! Unused bubble solution may be stored for later in a sealed container or disposed of by pouring it down the drain.

These are bubbles intended for 'blowing bubbles', not for bathing.

Sodium hydroxide is a strong base. Avoid direct contact with this ingredient. If you do get some on your hands, rinse them immediately with water.

Ingredients

Liquid dishwashing detergent (or another detergent)

Water or commercial bubble solution

Sodium hydroxide

Phenolphthalein

Thymolphthalein

Club soda (optional)

Here's How