엑-셀 (X-cell)

대전쟁전에 만들어진, 범능력증강약물. 시험단계에서 개발이 중지되었으나, 시제품이 암시장에 풀려서 넓게 사용되었다.

모든 능력치를 +2해준다.

강한 효과가 있고 중독성 또한 강하다.

• Super-Duper Mart
• Fens street sewer
• 국군 훈련소(National Guard Training Yard) On a withered feral ghoul, go through the 1st building into the 2nd via a security door then exterior covered passage
• 원자의 구덩이(Crater Of Atom)
• Concord Speakeasy, two may be found in an upstairs bedroom, next to the bed with the skeleton lying on it.
• Harbormaster hotel (on the roof, behind the counter)
• Railroad HQ Doctor Carrington (Trading, Rare)
• Poseidon Reservoir
• Diamond City Diamond City Surplus (Trading, Rare) and Solomon's Chem-I-Care (Trading, Rare)
• 굿네이버 (Goodneighbor) Daisy's Discounts (Trading, Rare)
• 샌디코브 요양원(Sandy Coves Convalescent Home) To the left of the entrance in the security cage.
• 아톰 캣츠 차고 (Atom Cats Garage) Bluejay (Trading, Rare?)
• 볼트 81 (Vault 81) Medical Room, In the Medibox on the right of the table when you enter
• Quincy Sometimes in a cooler labelled "Mama Murphy's Stash" on the balcony of Mama Murphy's apartment.
• 매스 퓨전 격납창고 (Mass Fusion Containment Shed) In the room with all the barrels behind a locked security gate on a feral ghoul's body.
• 볼트 95 (Vault 95) in the hidden med cache

중독 되면 1주일간 모든 능력치에 -1