Shampoo isn't really known in personality, however they are known for their unhinged mouth.
Shampoo is Conditioner's twin sister. She is also in love with Orange, even though he hates her. She has never flirted with Orange by herself. She can also be quite violent, as she threatened both Police Hat and a viewer.
Shampoo is a super weird contestant. He is so weird that most contestants have a hard time describing him. He loves fashion but doesn't care about other's appearance and doesn't clean himself often. Some of the things that he says he loves to do sometimes becomes stuff that he hates and vice-versa. He always runs with his mouth open and there is even more weird stuff that he does. Shampoo's liquid is stated to be one of the best shampoos ever (but he doesn't care). He likes getting a little bit of attention and loves prices. He prefers new technology and dislikes the old ones and likes to say: They are soooo million ages ago!. He isn't afraid of calling out others and isn't scared of calling them stupid or other nasty things. He loves eating weird stuff that is mostly uneatable. Despite all of this, he is somewhat smart and is shown to have a lot of talent on stuff like maths and music. Shampoo sometimes talks about random stuff that nobody cares about and he does this because that is his best way to socialize with others. He is sometimes mistaken as a female and Shampoo doesn't mind it. He dreams of being best friend with Match.
Shampoo is a pink bottle of upside-down shampoo. Their lid functions as a puppet-like mouth.
Shampoo is a brown Shampoo bottle. She later becomes a blue bottle.
Shampoo Is Male When This 1st to 25th.
And She Turned Female In It.