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Tyrosine, taken during exposure to stress, improves mood, decreases stress-related complaints and enhances mental performance. Banderet LE and Lieberman HR. Treatment with Tyrosine, a Neurotransmitter Precursor, Reduces Environmental Stress in Humans. Brain Res Bull 1989;22(4):759-62.

According to very preliminary evidence, tyrosine supplements may help fight fatigue and improve memory and mental function in people who are deprived of sleep or exposed to other forms of stress. Neri DF, Wiegmann D, Stanny RR, et al. The effects of tyrosine on cognitive performance during extended wakefulness. Avit Space Environ Med. 1995;66:313–319.

Preliminary findings indicate a beneficial effect of tyrosine, along with other amino acids, in people affected by dementia, including Alzheimer’s disease. Meyer JS, Welch KMA, Deshmuckh VD, et al. Neurotransmitter precursor amino acids in the treatment of multi-infarct dementia and Alzheimer’s disease. J Am Geriatr Soc 1977;7:289–98.

Due to its role as a precursor to norepinephrine and epinephrine (two of the body’s main stress-related hormones) tyrosine may also ease the adverse effects of environmental, psychosocial, and physical stress. Neri DF, Wiegmann D, Stanny RR, et al. The effects of tyrosine on cognitive performance during extended wakefulness. Aviat Space Environ Med 1995;66:313–9. Deijen JB, Wientjes CJ, Vullinghs HF, et al. Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course. Brain Res Bull 1999;48:203–9. . Shurtleff D, Thomas JR, Schrot J, et al. Tyrosine reverses a cold-induced working memory deficit in humans. Pharmacol Biochem Behav 1994;47:935–41. Deijen JB, Orlebeke JF. Effect of tyrosine on cognitive function and blood pressure under stress. Brain Res Bull 1994;33:319–23.

Brain Tonic's all natural ingredients contribute to a better quality of life.

The manufacturer, distributers and marketers do not accept any responsibility for the accuracy of the information or the consequences arising from the application, use, or misuse of any of the information contained herein, including any injury and/or damage to any person or property as a matter of product liability, negligence, or otherwise. No warranty, expressed or implied, is made in regard to the contents of this material. No claims or endorsements are made for any drugs or compounds currently marketed or in investigative use. This material is not intended as a guide to self-medication. The reader is advised to discuss the information provided here with a doctor, pharmacist, nurse, or other authorized healthcare practitioner and to check product information (including package inserts) regarding dosage, precautions, warnings, interactions, and contraindications before administering any drug, herb, or supplement discussed herein. Our products are manufactured in Johannesburg, South Africa, at a certified GMP laboratory. GMP stands for Good Manufacturing Practice. It is a recognised standard of quality for pharmaceutical and supplement manufacture and is enforced through regular governement inspections, controls and checks. COA certifies our ingredients. This stands for Certificate of Analysis and is a recognised world wide industry standard for quality of pharmaceutical and supplement ingredients.

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