I have been playing a LOT of Dungeons & Dragons since quarantine started. Xanathar's Guide to Everything introduced some much needed guidance on producing potions of healing during downtime for players with proficiency with the Herbalism Kit.
There are a lot of items in Dungeons & Dragons that don't have any official art yet. So this is what I like to imagine a Potion of Minor Healing might look like.
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Potion, common
You regain hit points when you drink this potion. The number of hit points depends on the potion’s rarity, as shown in the Potions of Healing table. Whatever its potency, the potion’s red liquid glimmers when agitated.