Choline is an isolated nutrient and the building block to acettylcholine; a chemical in the brain which is released when conducting cognitive tasks which involve memory retention or learning. Our Alpha GPC is the highest efficacy choline available and suitable for anybody with a mentally strenuous, high pressure role, studying for exams or anybody interested in increasing choline intake. Ingredients:Alpha GlycerylPhosphorylCholine, vegetable cellulose capsule (HPMC), brown rice flour. anti caking agents: silicon dioxide, magnesium stearate. Vitamin b12.