Crafting potions in The Elder Scrolls Online is pretty much the same as crafting them in the game’s single-player counterpart, Skyrim. To create a potion, you must first acquire a variety of ingredients, which you can use to experiment with.
As with any other crafting profession in the game, Alchemy will reward you with useful benefits for your character class. In this case, you’ll get potions that improve the stats and performance of your character. In the beginning, you’ll be able to brew yourself simple health and magicka potions, with more advanced stuff like invisibility potions further down the line.
Like any other crafting profession, Alchemy requires you to gather a variety of ingredients if you wish to make any progress in the skill. Part and parcel of becoming a good alchemist is knowing what ingredients to use to craft specific potions, and much of that comes through experimentation.
You can cut down on experimentation time and save yourself a lot of pain, grief, and resources by following the guide below, which provides every single alchemical interaction and their returns.
Be sure to click on the image to visit the Google Doc.