Studies have shown L-theanine crosses the blood-brain barrier intact and can continue to balance neurochemistry by blocking glutamate transport, reducing levels of extracellular glutamate and supporting the release of dopamine and glycine from neurons
Cani PD, Montoya ML, Neyrinck AM, Delzenne NM, Lambert DM
Deep eutectic solvents-synergistic ultrasonic-assisted extraction of polyphenols from raspberry ( Rubus idaeus L.): Optimization, mechanisms, and in vitro and cellular antioxidant activity
FDA staff's own briefing document, posted publicly ahead of the meeting as part of the docket, proposes that TB-500 (free base) and TB-500 acetate not be added to the list, citing incomplete physicochemical characterization, a lack of evidence of effectiveness for wound healing (including an in-vitro fibroblast study in which TB-500 reportedly did not induce wound healing), and insufficient nonclinical and clinical safety data
Let both the peptide and the bacteriostatic water reach room temperature before mixing