Restorative Ointment is a uncommon wondrous items in D&D 5e. It does not require attunement.
Wondrous item, uncommon
This glass jar, 3 inches in diameter, contains 1d4 + 1 doses of a thick mixture that smells faintly of aloe. The jar and its contents weigh 1/2 pound.
As an action, one dose of the ointment can be swallowed or applied to the skin. The creature that receives it regains 2d8 + 2 hit points, ceases to be poisoned, and is cured of any disease.