If you have mushrooms or butterflies and an Empty Bottle, you can concoct a potion. You need to select at least 3 ingredients and have at least 1 empty bottle to concoct your potion.

What type of potion you make depends on what ingredients you choose.

Arbog Finger mushrooms
Brown in color, they are good for making Ethers.

Bloodsprout mushrooms
Red mushrooms that are good for making Health potions.

Moonflame Stalk mushrooms
Rare bioluminescent mushrooms found in caves. They are good for making Elixirs.

Spider Cap mushrooms
Brown mushrooms, that are also good for Health Potions.

The Suncrest and Red Pearl butterflies
Butterflies that are also collectible. They are both good for Limit Boosts

PotionsElixirsEthersRemedyLimit BoostsEmpty Bottle