Norepinephrine and Dopamine are key neurotransmitters for the maintenance of alertness and mental acuity and for promoting a feeling of general well-being. These two neurotransmitters are produced in the body from the amino acid precursors L-Tyrosine and L-Phenylalanine. This conversion process also requires Vitamins C and B-6 as cofactors. Now True Focus combines these important nutrients with other ingredients like Ginkgo biloba and Dmae to complement this formula. Natural color variation may occur in this product.