Tonics are consumables that transform the player's model into a different model specified by the tonic used. Some tonics are "Endless" meaning they are not consumed upon use, in contrast to normal tonics. Almost all tonics have one possible transformation, while a few have more possible outcomes. Most tonics are craftable in the Mystic Forge, by combining two Mystery Tonics (available from Black Lion Chests, as well as Endless Mystery Tonic) and two other crafting materials. Some can be crafted by Artificers and quite a few are available from merchants, karma merchants, dungeons, and special events. Most tonics lock out all combat skills, while some grant the character costume brawl skills, and very few give skills usable in combat.
Most tonics allow the use of certain Costume Brawl Toys and toy-like Gizmos without losing the form, usually replacing the skills of the form if it provided any.
List of Tonics
Many NPC merchant sell tonics in game. You can buy tonics using gold or karma (event NPC Merchants, Renown Heart NPCs and other Karma Merchants), or buy them for other currencies, such as bandit crests (Bandit Crest Collectors), laurels (Laurel Merchants) or guild commendation (Guild Commendation Traders).
Dungeon tonics drop in Dungeons and can be bought from Dungeon Merchants in Lion's Arch in exchange for dungeon tokens; they are also available on the Trading Post.
Crafted & Forged
Some tonics can be crafted (using a Crafting station) or forged (using the Mystic Forge).
These tonics are available from various content - they have a chance to drop from certain boss fights or jumping puzzle chests, or are found in Lost (or Found) Bandit Chests, Lost Orrian Jewelry Boxes or Black Lion Chests. Some of them are also available on the Trading Post.
Clothing tonics used to be Town clothing, until that feature was removed with the April 15, 2014 Update. Some town clothing items were replaced with armor skins, others were changed into the tonics in the table below.
Special Event Tonics
These tonics are retired and no longer drop in game; however, some of them can still be crafted by players who unlocked the recipes in time and/or can be purchased from other players on the Trading Post. Tonics (and tonic recipes) from recurring events such as Halloween and Wintersday may become available through the game again.
We don't currently know how to get hold of any of these tonics.
Other transformation items
These items change a character's appearance only partly. Most of them are not considered Tonics.