# Ingredients

Nootroo comes in a Gold formula and a Silver formula. In the Gold formula, the main ingredient is Noopept and in the Silver formula, the main ingredient is Phenylpiracetam. Both formulas contain CDP-Choline and our proprietary ratio of L-Theanine & Caffeine Anhydrous, called Smooth Caffeine.To distinguish between the two formulas in a non-synthetic or artificially colored way, the Gold formula contains 23.5 carat gold flakes and the Silver formula contains 100% pure silver flakes.