Is it permissible to use hair gel?

First of all, we must determine that a Muslim should not imitate everything that is necessary or unnecessary. The time and money s/he spends on his/her hair must represent the identity of a Muslim. The gel is not permissible if it is a pork product. It can be used if it is a chemical substance. It may be permissible for wudu (ablution), but such substances should not be on the hair while making ghusl.