If the G4 glitter hair is like the G3 tinsel hair, run it under hot hot water before you comb it. It helps to keep the tinsel fly-aways under control and helps to generally shape the hair. Then like TeaLeaf said, conditioner! I use a comb with 2 different sizes of teeth gaps, start with the comb with more space between the teeth and start the end doing a little bit at a time. Once the big teeth go through smoothly, use the finer toothed comb to do the same thing. It keeps from pulling the hair out and from causing knots/making them worse.