Potion of healing

A potion of healing is a potion of red glimmering liquid that can restore hit points when it is drunk.

Creation
Madam Musk in Asarius produces potions of healing using tumor moss collected nearby.

A rare swamp fungus called the queenscap is a reagent used in the brewing of potions of superior healing; as of 812 PD the fungus had been harvested almost to the point of extinction in the K’Tawl Swamp but the mushrooms were still available around the village of Bronbog.

Properties
Drinking a potion of healing restores an amount of hit points that varies with the potion's potency and rarity. It normally takes one action to drink a potion; however, the Critical Role games use a homebrew rule making it possible to drink one as a bonus action, although feeding one to another player still takes an action. The Critical Role: Tal'Dorei Campaign Setting offered this homebrew rule as a suggestion to help speed up combat with larger parties, and introduced "Rapid Quaffing" as an optional feat allowing characters to not only drink potions as a bonus action but also gain advantage on saving throws triggered by ingesting alcohol and dangerous substances.

Uses
CritRoleStats has a record of all potions of healing consumed in each campaign. Here is the tracker for the Campaign of Vox Machina, and here is the tracker for Campaign Two: The Mighty Nein.

Trivia

 * Matt filled several small bottles with the corresponding amount of red dice to hand to the players to represent the healing potions they carry. When a player wants to use the potion, they roll the dice by emptying the bottle, then return it to the Dungeon Master.