“The Haircut NPC is a daily service provider located in Unova. For a small fee, they will give one of your Pokémon a professional haircut, which increases its Happiness (friendship). The exact amount of Happiness gained (between 1 and 10) depends on your Pokémon's current Happiness level and a bit of luck. Pokémon with a Happiness value below 199 have a chance to receive the maximum boost of up to 10 points.”