Kathy and John's Super Salon is an unmarked location in the Diamond City market in 2287. It is owned and operated by the mother-and-son cosmetology duo Cathy and John as a barbershop offering the latest hairstyles from the upper stands and across the Commonwealth. The salon serves the beauty needs of both travelers and city residents.
This building has an entrance hatch to John and Cathy's house inside their small covered shop stall. The stall also features a barber's chair, a sink, a mirror, a floor safe, and a couple of other containers. The house consists of a single basement room with two owned sleeping bags and some minor loot.
- John and Jessica's house key is needed to enter John and Cathy's house without lockpicking the Novice-locked hatch.
- While the name of the salon starts with a "K" for "Kathy," the name of the character, "Cathy," starts with a "C." In addition, the key to the house is labeled "John and Jessica."
Kathy and John's Super Salon only appears in Fallout 4.