Can I Take L Theanine and L Tyrosine Together? Mind Lab Pro Amazon.com: Smarter Brain Support Nootropic Supplement, Made with Alpha GPC, L Tyrosine & Acetyl L Carnitine ALCAR, Flaxseed Oil, ALA DHA, 60 Softgel Energy Pills : Health & Household Acetyl L carnitine physical chemical, metabolic, and therapeutic properties: relevance for its mode of action in Alzheimer's disease and geriatric depression Molecular Psychiatry Amino acids L Tyrosine is the raw building block for your dopamine. It is the material your brain needs to manufacture focus. Without it, you are trying to build a bridge with no L Tyrosine Neighborhood Naturopathic Natural Health Supplement