Mixins

 are God Potion Addons that can be used in Brewing Stands to give God Potions additional effects. Like normal brews, the Mixin buffs last for the entire duration of the God Potion. They are bought from the Bartender for each. Players can only purchase them upon reaching certain Slayer levels. Multiple Mixins can be applied onto one God Potion.

Mixins are currently bugged and wear off upon leaving the current server.