Developed by Neuroscientists with clinically researched ingredients, Calm and Clarity Sparkling Yuzu Lemon & Vanilla is perfect for day time clarity or night time calm. Sparkling Lemon Yuzu & Vanilla. Formulated by our world-renowned neuroscientist. Low in sugar & caffeine free. Magnesium + 200mg L-Theanine in every bottle. +Drinking Ārepa contributes to the reduction of tiredness and fatigue, while supporting normal psychological and neurological function, thanks to the power of magnesium, when consumed as part of a healthy, balanced diet.