History and Usage: L-Histidine is an amino acid which increases resistance to environmental allergens and aids in prevention of Anemia. A dilator to help increase blood circulation. Label Information and Ingredients: Suggested Use: As a dietary supplement, take 1 tablet daily or as directed.

Supplemental Facts Serving Size: 1 Tablet(s) Ingredients Per Serving % DV Calcium 162 mg   16% Phosphate 127 mg 13% L-Histidine 500 mg * * Daily Value Not Established Other Ingredients: Dicalcium Phosphate, Cellulose, vegetable based Stearic Acid, Povidone, Magnesium Stearate, Titanium Dioxide, Silica.

Contains No Added: sugars, starch, flavors, colors, preservatives, corn, soy, yeast, wheat, and milk derivatives.

Caution: Pregnant or lactating women, persons taking medication or under a doctor's care should consult their physician prior to use. Keep out of the reach of children. Store in a cool dry place.

QUALITY AND POTENCY GUARANTEED Websites for Further Research:

http://en.wikipedia.org/wiki/Amino_acid

http://www.biology.arizona.edu/biochemistry/p...

http://www.answers.com/topic/amino-acid#after_ad1

http://web.indstate.edu/thcme/mwking/aminoaci...