Love making slime at home? This cool contact lens solution slime is made with a secret ingredient that causes it to change colours when it’s exposed to body heat—without the need for expensive thermochromic pigment!
Add 1 tablespoon of contact lens solution and stir with a spoon. Slowly add the rest of the contact lens solution, mixing well and making sure to stop before the slime gets too rubbery.
Remove the slime from the bowl and knead it with your hands. It will start out sticky, but the more you knead it, the less sticky it will feel.
When the slime no longer feels sticky, it's time to play! To make the colour changes more pronounced, explore various temperature changes by storing the slime in the refrigerator and warming it up with your hands, or by cooling down room-temperature slime using an ice cube.
Notes
Make sure the contact lens solution you use lists “boric acid” and “sodium borate” as ingredients. If those ingredients are not listed, the slime will not form and the recipe will not work.