Mixins

 are items that can be brewed with a  to grant it an additional effect for its duration.

Facts

 * You are blocked from consuming God Potions with Mixins, for which you do not meet the Slayer requirement.
 * You are not blocked from combining the item with the potion inside a brewing stand, even if you do not meet the Slayer requirement.
 * Multiple  can be put on a God Potion.