L-theanine is an amino acid found primarily in green and black tea. It’s also found in some mushrooms.

L-theanine may improve mental function. It is also used for anxiety, mental impairment, stress, and other conditions.

Showing the single result

  • Rich Piana 5 Percent Nutrition Mentality

    5% Nutrition Mentality

    $32.99 or $31.34 / month
    Get The FactsAdd to cart