X-Cell (Fallout 4)

X-cell is a consumable item in Fallout 4.

Background
Created before the war as a general performance enhancer, X-cell never got out of the prototype stage, but was widely distributed on the black market. It boosts every SPECIAL attribute for a limited period of time, but is highly addictive.

Characteristics
It appears to be some sort of inhaler; it boosts all S.P.E.C.I.A.L. attributes by 2 points for a limited duration. According to the Survival Guide, this duration is 120 seconds. With an addiction rate of 35%, X-cell is 2.3 times more addictive than any other chem in the game. Because of its rarity, carrying some addictol is recommended, as taking doses simply to sustain an addiction is not feasible, and the penalties of addiction are high.

Locations

 * Vault 88, in the store at the end of the northeast section. Found by going up a dead-end staircase and looking right, it is behind the head of a partially-buried statue wearing a sea captain's hat.
 * Fun House - In the room with a house turned every-which way, look up in the bathroom and jump toward the mirror, it'll be a split second so you'll have to be quick.
 * Nuka-Cade, Prize level 5 for 3000 Nuka-Cade tickets.

Respawns

 * Concord Speakeasy, two may be found in an upstairs bedroom, next to the bed with the skeleton lying on it.
 * Fens Street sewer, in the first room, across the water, tucked behind a grey pipe and a blue pipe.
 * Harbormaster hotel, on the roof, under the counter of the bar.

Shops

 * Diamond City, sold at Diamond City Surplus and Solomon's Chem-I-Care (both rare).
 * Goodneighbor, rarely sold at Daisy's Discounts.
 * Railroad HQ, rarely sold by Doctor Carrington.
 * The Prydwen, rarely sold by Knight-Captain Cade.