Nervous tension, Blood pressure, Cardiac regulation. It is a sulphur-containing amino acid with numerous functions: it is necessary for the formation of bile and plays an important role in the regulation of blood pressure and heart rate. Furthermore, in combination with Magnesium, it helps relieve nervous tension. Proteins composed of amino acids form long-chain molecules. The body must first break down these molecules (peptides) to facilitate the absorption of amino acids. Solgar amino acids are always in their simplest form (unbound peptides) and can therefore be easily absorbed into the bloodstream. Food supplement without sugar, salt and starch. Made in the USA.