Riboflavin (5g)

Riboflavin is (apart from being the good vitamin B2) the ingredient to make your drinks glow strongly yellow/green under a UV light.

Adjust the dosage to your need BUT remember that very, very little is needed for a strong yellow colour and luminescence.

Start experimenting with dosages of 0.2g per liter liquid and then either increase it for more effect or reduce it for a more subtle shade.

At this dosage, this pack would enhance about 25 Liter of spirits for that extra conversation at your next party!