- Actor Allusion: Sort of. Sherman the Giraffe is voiced by rapper MF Doom, with a song on his Dangerdoom album named for and about the show to boot. The episode Woke Up Drunk opens with him singing on stage with a California bear.
- Cut Short: Season 2 only had 1 episode in the series produced, the crew behind Perfect Hair Forever did not have any interest in continuing the show with the second season, (Also see What Could Have Been below).
- Keep Circulating the Tapes: For a time the only way you could get the episodes on DVD was on Adult Swims make your own DVD website, after it got taken down the only way to even get the pilot was on a bonus disc in the Adult-Swim-in-a-box collectors set. While it still has yet to be released on DVD, as of March 2014 the first 6 episodes have been released on iTunes and as of July 2014 they are all on their official website.
- Name's the Same: Uncle Grandfather has nothing to do with Uncle Grandpa.
- Cat Man also has the same name after an another Cat Man.
- The Wiki Rule: The Perfect Hair Forever Wiki.
- What Could Have Been: Season 2 was originally going to have over 16 full Episodes going to be produced & would air on Adult Swim's "The Fix", however, season 2 ended up with only one episode called "Return to Balding Victory" after that the show eventually went on a large hiatus until 2014, where two versions of the eight-episode called "Muscular Distraction", both "A-B", were officially aired.
Trivia / Perfect Hair Forever