What sort of shampoo do they use in the Star Wars setting? Given the ubiquitous artificial intelligence, antigravity, and faster than light travel, it must be pretty advanced stuff. It probably coats your hair in carbon nanotubes or something.

Transcript

Mace Windu: ... I see. So the entire Jedi Council are Sith Lords? That just sounds wrong.
Anakin: <sigh>
Yoda: "Dream Prophecy Shocker: Palpatine to Kill Padmé!"
Anakin: Okay, what she said.
Mace Windu: Dear Lord! The Chancellor!? Are you sure?
Anakin: Trust me. He's the Sith Lord.
Anakin: I know it's not much to go on, but—
Mace Windu: A prophetic dream? That's good enough for me.
Mace Windu: Finally, someone tells me what's actually happening around here!
Anakin: So...
{beat, Mace looking perplexed}
Anakin: ... Given Palpatine is a Sith Lord, what do you think we should do?
Mace Windu: That sucker's going down! Come on, I'll let you handcuff him.
Anakin: Sorry. I... need to wash my hair.
Mace Windu: Hmm, okay. I guess hair-people have special needs.
{Mace leaves in a transport ship with other Jedi, as Anakin watches them go}
[SFX]: Vyyyooowww