phenylalanine.Is.An.Essential.Amino.Acid.That.Cannot.Be.Naturally.Manufactured.By.Your.Body..It.Needs.To.Be.Acquired.Via.External.Sources.And.Then.Converted.Within.Your.Body.Through.Several.Steps..It.Begins.In.The.Liver,.where.It.Is.Converted.To.L-tyrosine..The.Process.Continues.In.The.Brain.And.Adrenal.Glands,.where.L-tyrosine.Can.Be.Converted.To.Dopamine,.norepinephrine.And.Epinephrine.(Adrenaline.Hormone).. norepinephrine,.for.Example,.enhances.Mental.Energy.Levels.That.Often.Induce.A great value for money and completely safe to be brought through as you are protected by 's full easy return policy. Ingredients ----------- Please see item image or description for ingredients. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning -------------- Always consult with a healthcare practitioner before taking any food supplement for the first time See more ( javascript:void(0) )