Mandrake cordial is considered an alchemy ingredient and thus, can't be consumed like regular drinks. It is needed to make White Gull. The following merchants are known to sell it: * Bram in White Orchard village * Elsa at the White Orchard Inn * The Innkeep in Harviken * The Merchant in Downwarren * The Alchemy in Oxenfurt * The Innkeep in Lindenvale * The Merchant in Oxenfurt (NW of Armorer, South of Grindstone & Table)