How It Works

B4 is a pharmacist-created vitamin supplement you drink before you drink alcohol. It is caffeine-free and specifically formulated with liver protectants, a powerful rehydration blend, antioxidants and amino acids.

Think of it as sunscreen for your liver™.

Take a can before your first drink, like putting on sunscreen before you go in the sun. And just like sunscreen, if you’re going to be out in the sun for a while, or keep drinking, have a second or third can to reapply. Even if you’ve already started drinking, you’ll still want to protect yourself with B4. Like sunscreen, you may burn a little but it’ll still help.

How to use B4 for best results


Drink within an hour before your first drink.


Chill for taste.


Enjoy with food in your stomach.


Big night? Have a second or third can throughout.

B4 still helps if taken during or after drinking. But, like our name says, drinking your first can before is best.