Photosynthesis (光合成, Kōgōsei?) is a recurring ability in the series. It is an ability used primarily by the Mandragora and Cactuar enemies, which bestows the Regen status to an ally or recovers other stats, such as Bravery.
Photosynthesis is the summon ability of the Mandragora, which, for 50 seconds, if the summoner's Bravery is lower than their base Bravery, it will gradually increase until it reaches base Bravery. In Dissidia, it can be obtained as the level bonus from Destiny Odyssey I. In Dissidia 012, it can be obtained by buying it for 20 KP from the Moogle Shop during TotG: Chapter 2, Chapter 7, and CotC: Pravoka.
Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the sun, into chemical energy that can be used to fuel the organisms' activities.