I cannot figure out how to attach my refill. The cartridge does not unscrew from the brush.Updated 10 months ago
If you have our new-style brush, with this logo, then your brush refills differently. To refill, unscrew the blue cap below the yellow window and pour the refill contents into the brush. It is a good idea to use a sharpie or sticker to make a note of the batch code and expiration date of your refill on the brush. When you replace the bottom cap, be sure to attach it very tightly so that it won’t come undone in use.
How to Refill Your Brush
For more information, see our How to Use page.