To remove glitter specifically from your scalp, first go outside and try to shake out any loose flakes. You can run your fingers through your hair to help pull out loose glitter, but don’t use your hairbrush: That’ll just transfer the glitter from your head to the brush, which means you’ll add the glitter back into your hair the next time you use it.
Next, apply a natural oil to your dry hair from root to tip. Work the oil through your hair until it is completely covered. (If you’re using a premium olive or coconut oil, you can even massage your scalp for a few minutes as a bonus conditioning treatment.) Gently massage the areas most saturated with glitter to loosen the flakes as much as possible. The hair glitter may start sticking to your hands, but you’ll be able to wash your hands later to get any lingering glitter off.
Then let your hair soak in the oil for 15 minutes. Be careful of what you touch: Oil can stain fabric, so stay away from upholstered furniture. Once time is up, wash your hair as normal using warm water. Spend a few minutes really massaging your scalp, then thoroughly rinse your hair until all of the hair glitter is gone.