<p><pre><code>    [L-Theanine] has no known toxic dose.
</code></pre>
You keep saying this like it means something.  Even _water_ has a toxic dose:<p><a href="http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pmc&#x2F;articles&#x2F;PMC1770067&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pmc&#x2F;articles&#x2F;PMC1770067&#x2F;</a><p>It really makes me wonder whether you have adequate human subject protections in place or if you just hand-waved those away by assuming L-Theanine was completely safe.