Creatine HCL Liquid Drops 1000mg Creatine Per Serving with L Theanine, L Carnitine, Vitamin B12 & B6 High Absorption Formula for Energy, Focus & L Carnitine Benefits for Fat Burning and How to Use ICONFIT Frontiers L Theanine: A Unique Functional Amino Acid in Tea (Camellia sinensis L.) With Multiple Health Benefits and Food Applications 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 Theanine