These formulas apply to the alchemy crafting skill. Below is a link to the list of alchemical ingredients, as well as the alchemical formulas available for alchemists to purchase and learn (prices of formulas may vary):
1 Common Light + 1 Common Water
A creature that drinks this vial of liquid gains advantage on saving throws against poison for 1 hour. Can also be used to lift the poisoned status condition, but cannot do so in combat.
Potion of Healing
2 Common Light
A creature who drinks the magical red fluid in this vial regains 2d4 + 2 hit points. Drinking or administering a potion takes an action.