Weight: ½ lb.
Estimated Value (Sane Cost Guide): 100 gp
DMG Value: 51 gp - 250 gp
When you drink this potion, you gain advantage on one ability check, attack roll, or saving throw of your choice that you make within the next hour.
This potion takes the form of a sparkling, golden mist that moves and pours like water.
Source: The Wild Beyond the Witchlight p212