Babbling Beverage - Beautifying Potion/Beautification Potion - Befuddlement Draught - Belch Powder - belladonna - bezoar - bicorn parts - Billywig parts - black beetle parts - Blood-Replenishing Potion - boil cure potion - boomslang parts - bruise-healing paste - bubotuber - Bulbadox powder - Bundimun secretion - burn-healing paste
Causes the target person to talk nonsense.
In an effort to pass along a warning to Snape, Harry once shouted "He's got Padfoot in the place where it's hidden." Snape pretended not to know what Harry was talking about and said that if he wanted to hear nonsense, he'd give Harry a Babbling Beverage (OP32)
Potions to make the drinker more lovely in appearance.
This substance presumably causes the target creature to belch.
Essence of this poisonous plant is part of a student's standard potion-making kit (GF10).
A shriveled, kidneylike "stone" (HBP18) that comes from the stomach of a goat, protects from most poisons (PS8)
Actually a bezoar isn't a stone per se, but a hairball that looks something like a stone; in legend bezoars are indeed supposed to have the properties attributed to them by JKR.
Powdered horn used in Polyjuice Potion.
Dried stings (FB)
Medical magic: this potion makes up for lost blood.
Arthur had to take a Blood-Replenishing Potion every hour until the Healers could find an antidote for the venom of the snake that bit him. Something in that venom was keeping the wound open and he was bleeding whenever they would remove the bandages (OP22)
Simple potion to cure boils.
If the porcupine quills are added before the cauldron is taken off the fire, the mixture produces clouds of acid green smoke and a loud hissing, melts the cauldron, and burns holes in people's shoes. This happened to Neville, who was splashed by it and sprouted angry red boils (PS8)
Medical magic: this is a thick yellow paste used to heal bruises.
A plant, the pus of which is used for healing potions (GF13).
Substance which causes the skin of a person who touches it to break out in boils
Diluted, this is used in some magical cleaning solutions.
Medical magic: this is an orange paste is used to heal burns.