L-Histidine

L-Histidine is one of the nine essential amino acids for the human body, meaning it cannot be synthesized internally and must be obtained through diet or supplementation. It is sometimes classified as a semi-essential or conditionally essential amino acid in infants and individuals with chronic diseases.

The name Histidine originates from the Greek word "histos," meaning tissue. It plays a vital role in tissue formation and repair and is a necessary precursor for synthesizing histamine, a crucial biogenic amine. The primary benefits of L-Histidine stem from its function as a histamine precursor, which is involved in immune response, digestion (stimulating stomach acid secretion), sexual function, and the sleep-wake cycle, where histamine acts as a key neurotransmitter.

L-Histidine also helps maintain the myelin sheath—the protective layer around nerve cells—and acts as an important biological buffer, helping to maintain optimal pH levels in the blood and tissues.

Uses of L-Arginine HCl

L-Arginine HCl is included in a wide range of formulations such as circulation-support products, performance blends, reproductive wellness formulas and general vitality supplements. People commonly take L-Arginine HCl to help with:

  • Enhancing blood flow and circulation

  • Supporting physical performance and muscle recovery

  • Promoting cardiovascular health

  • Supporting reproductive health and hormonal balance

  • Improving overall energy and vitality, especially during stress or fatigue

References

  • Pasupathi, P. et al. Histidine in biological and pharmacological systems. Int J Pharm Pharm Sci. 2011; 3(3): 14–16.

  • Pinals, R. S., et al. The effect of L-histidine in rheumatoid arthritis: a randomized, double-blind, placebo-controlled, crossover study. Arthritis Rheum. 1977 May-Jun; 20(4): 851–855.

  • Sakurai, H., et al. Transport and metabolism of histidine and histamine. Amino Acids. 2008 Jul; 35(1): 185–194.

  • Yanai, K., et al. Histamine H1 receptor and its functions in the brain. J Pharmacol Sci. 2004 Jun; 95(2): 134–140.

GHR Amino

GHR Amino

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