Does hair curl sponge work on white people?

Yes, hair curl sponges can work on white people, particularly if they have hair types that are conducive to curling, such as wavy or textured hair. The effectiveness may vary depending on hair thickness and length, but many people with straight or slightly wavy hair can achieve a more defined curl pattern with the right technique and products. It's important to use the sponge correctly and possibly combine it with a styling product for better results.