The Bath Bomb is a craftable item exclusive to Don't Starve Together, introduced in Return of Them. It can be crafted with 6 Lune Tree Blossoms and 1 Nitre, however doing so requires that the player be near the Celestial Altar. Some Bath Bomb can be found naturally close to Hot Springs.
Bath Bombs can be thrown into Hot Springs, which will cause the Hot Spring to emit steam more rapidly. After a Bath Bomb has been tossed into a Hot Spring, Saladmanders will be attracted to it and will turn ripe after being near it for enough time. During a Full Moon, all Hot Springs that have had a Bath Bomb tossed in them will change to have a Moon Glass rock in the center. Mining the Moon Glass rock will drop 5 Moon Shards and rarely a Red Gem or Blue Gem. After being mined, the Hot Spring will return to normal.
- Bath Bombs were introduced in the Turn of Tides update.