Aging Potion

This causes the drinker to become older. Whether this is in body only, or in body and mind, isn't clear. It is clear, however, that the more of the potion is drunk, the larger the aging which occurs. The effects of this potion are most likely to be temporary.

Anti-Poison Potion

This is an antidote to a variety of poisons. The Bezoar is used to combat most poisons, but not all of them.

Antidotes

Different antidotes exist for different effects. Known antidotes exist for Doxy bites, petrification, and of course poisons.

Babbling Beverage

Causes the drinker to babble nonsense.

Boil-Cure Potion

Ingredients: Dried nettles, Crushed snake fangs, Stewed horned slugs and Porcupine quills. Cures boils. Little else is known about this, except that it is an elementary potion taught to first years.

Blood-Replenishing Potion

Tops up the blood levels of the drinker after injury.

Burn-Healing Paste

Not exactly a potion, but a thick orange paste used to heal burns. Madam Pomfrey uses it on Cedric Diggory after the first task of the Triwizard Tournament.

Confusing Concoction

Causes confusion in the drinker.

Deflating Draught

Causes anything swollen by magical means to shrink back to normal size. This is the opposite to a Swelling Solution, and acts as an antidote to it.

Doxycide

This a black solution used to spray Doxies. It renders them unconscious for a time.

Draught of Living Death

Ingredients: Wormwood and Asphodel. This is an extremely powerful sleeping potion. Snape thought Harry should have read up on it in Magical Drafts and Potions before arriving for his first year at Hogwarts.

Draught of Peace

Ingredients: Powdered moonstone and Syrup of hellebore. Calms anxiety and soothes agitation.

Elixir of Life

This is produced by the Philosopher’s Stone, and grants the drinker immortal life for as long as they keep on drinking it.

Exploding Potion

Ingredients: Erumpent fluid. The erumpent produces a remarkable fluid in its horn which causes anything it is injected with to explode. This is used in potion-making to produce an exploding potion.

Forgetfulness Potion

Causes the drinker to become forgetful.

Hair-Raising Potion

Ingredients: Rat tails. Effect unknown

Love Potion

Ingredients: Ashwinder eggs Causes the drinker to fall in love. During his Valentine’s Day event, Lockhart suggested that the students ask Professor Snape to knock up a quick Love Potion for them. Professor Snape did not approve.

Mandrake Restorative Draught

Ingredients: Mandrake. This is used to revive people who have been petrified. It was particularly useful when the Basilisk was released from the Chamber of Secrets and petrified a number of students.

Memory Potion

Ingredients: Jobberknoll feathers. The effect of this in not known, but it is likely that the potion is used to give the drinker improved access to their memories.

Mrs Scower’s Magical Mess Remover

Cleaning solution favoured by Argus Filch.

Pepperup Potion

This relieves the symptoms of colds and flu, although it doesn’t seem to actually provide a cure. It has the side-effect of causing steam to come out of the drinker’s ears for several hours after imbibing it.

Photograph Developing Fluid

Even though Colin Creevey has a Muggle camera, he was told that he could still produce wizard-style moving photographs by developing them in the correct fluid.

Polyjuice Potion

Ingredients: Fluxweed, Horn of bicorn, Knotgrass, Lacewing flies, Leeches and Skin of boomslang. This potion allows the drinker to assume the appearance of another person. The effect lasts for an hour, but as Bartemius Crouch Jnr showed when impersonating Alastor Moody, repeat doses can be taken indefinitely. In addition to the standard ingredients listed, this potion also requires a part of the person you want to assume the appearance of. The fluxweed has to be picked at full moon, and the lacewing flies stewed for 21 days before the potion is made.

Scintillating Solution

Effect unknown.

Shrinking Potion

Ingredients: Caterpillar, Daisy roots, Leech juice, Rat spleen, Shrivelfig. This a an acid green potion which is on the 3rd year syllabus. Snape uses it to turn Neville’s toad into a tadpole: it is unclear whether the potion makes things simply reduce in size, or actually reduce in age.

Skele-Gro

This causes lost bones to re-grow, which is a slow and painful process. Harry only had his arm bones removed because of Lockhart’s incompetence: it seems unlikely that under other circumstances Skele-Gro has to be used very often.

Sleekeazy's Hair Potion

This is used to calm down problem hair so it can be styled. Hermione used liberal amounts of it when she went to the Yule Ball with Viktor Krum.

Sleeping Draught/Potion

Causes the drinker to fall asleep. A standard Sleeping Draught differs from the Draught of Living Death, which is a much more powerful version.

Swelling Solution

Causes whatever it touches to swell up in size.

Veritaserum

A powerful truth potion. It is used to make the drinker answer any questions put to them truthfully. Use is strictly controlled by the Ministry of Magic.

Wit-Sharpening Potion

Ingredients: Scarab beetles, Ginger roots, Armadillo bile. The effect of this is not known, although it is likely to involve sharpening the wit of the drinker (in other words, making them able to think better).

Wolfsbane Potion

A new and complex potion, this relieves the symptoms of lycanthropy (although it does not cure it). If the affected person drinks the potion at full moon, they transform only into a normal wolf (and retain control over their actions) rather than bloodthirsty out-of-control werewolf.

Wound-Healing Potion

This is a smoking purple liquid which heals and closes open wounds. Madam Pomfrey uses it on Harry when he has been injured during the first task of the Triwizard Tournament.