Each AdrenaMax™ capsule contains 400 mg of L-tyrosine, a conditionally essential amino acid the body can convert to the neurotransmitters dopamine, epinephrine, and norepinephrine. These neurotransmitters are found to increase mental alertness and focus and also preserve normal memory under stressful conditions. N-acetyl-L-cysteine is present to support glutathione production, antioxidant activity, and neuronal protection.