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Known commonly as a precursor to Histamine, L-histidine is an essential amino acid within the body. Enjoy the benefits of L-Histidine in quick-release capsules that provide 500 mg of it per serving! Directions For adults, take 2 quick release capsules daily, preferably on an empty stomach. WARNING: If you are pregnant, nursing, taking any medications [...]


L-proline is a non-essential amino acid that plays an important role in the maintenance and support of the structural components in the body.** It is involved in the synthesis of collagen, the main structural protein that makes up all the connective tissues in the body such as skin, tendons, ligaments, joints, bones, veins, and arteries.** [...]