A super zamorak brew (3) is player-made using the herblore skill. The flasked version can then be made by using the original potion on a potion flask.
Uses:
Boosts attack, strength, magic and ranged by 12%+2 temporarily. However, the potion also drains 8%+1 defence levels and 8%+20 lifepoints.
For example, a player with 99 in all stats and no lifepoint boosts would gain 13 attack, strength, magic and ranged levels, and lose 8 defence levels and around 340 lifepoints.