Possible for individuals: yes
But it would take some doing, you could even make it so the potions would be visable on their belt.
The tricky part comes from making a buff, that triggers during certain circumstances where you would want a hearthling to use said potion.
(in simple terms, you would make the potion a sort of armour that takes up a slot you would call potion, the “armour” that looks like a potion would be around the belt area and would give a buff to the hearthling that triggers at a certain time, and as an extra effect deletes the enquiped potion
I know all Stepps EXCEPT the lua for the potion stuff. Its why I haven’t made it yet (next to time constraints, still moving house…)