Source: Tales from the Yawning Portal

Potion, rarity varies

When you drink a Potion of Mind Control, you can cast a Dominate spell (save DC 15) on a specific creature if you do so before the end of your next turn. If you don't, the potion is wasted.

A Potion of Mind Control produces the effect of a Dominate Beast, a Dominate Person (humanoid), or a Dominate Monster spell (see the table below). If the target's initial saving throw fails, the effect lasts for 1 hour, with no concentration required on your part. The charmed creature has disadvantage on new saving throws to break the effect during this time.

Potion of … Rarity
Mind control (beast) Rare
Mind control (humanoid) Rare
Mind control (monster) Very rare