"two drops tames even the most bothersome barnet"
-- Early advertisement for Sleekeazy's Hair Potion (Pm)
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Used to style hair.
History and Notes
Fleamont Potter, father of James and grandfather of Harry Potter, "quadrupled the family gold" by inventing Sleekeazy's Hair Potion (Pm). Potion-making must run in the family, since his illustrious ancestor Linfred of Stinchcombe invented the Pepperup Potion and Skele-Gro (Pm). This explains the vast pile of galleons in the Potter family vault at Gringott's bank (PS5).
References from the canon
Commentary
Notes
A label for Sleekeazy's Hair Potion was included in the Harry Potter Wizard Collection label set. The label was apparently designed as a movie prop, so it's value as canon is questionable, but it reads as follows:
Hair Potion and Scalp Treatment Suitable for All Types of Hair. Unique Results for Gingers.
Ingredients: Gomas Barbardensis, Asian Dragon Hair, Petroleum Jelly