Better brain chemistry = better quality of life
Your mental state is affected greatly by your brain chemistry. Some people have a sunny outlook on life, but others struggle to remain positive and even-tempered from day to day. NeuroLink provides an exclusive blend of nutrients that support key transmitters such as adrenaline, noradrenaline, dopamine, GABA, glutamate, and serotonin.
Fires up brain synapses
The brain’s billions of nerve cells make trillions of connections with each other. These are called synapses. Each nerve cell generates electrical signals that travel as far as a synapse, where a chemical signal then bridges the gap between that cell and the next. These chemical signals are carried by specific messenger substances called neurotransmitters.
When your brain transmitters are balanced you can think more clearly, feel happier, and experience greater well-being. You’ll feel less anxious, enjoy a more positive outlook and cope more effectively in stressful situations.
Dr. Amen talks about NeuroLink
Balanced brain chemistry... naturally.
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Ingredients & Facts
NeuroLink delivers six powerful brain-balancing ingredients:
Vitamin B6 (as Pyridoxal-5-Phosphate)
Vitamin B6 is a water-soluble vitamin essential in the production and function of various neurotransmitters. It is also essential for early brain development. Vitamin B6 is also is required by at least 100 enzymes that help the body utilize amino acids, fatty acids, and carbohydrates. Neurolink contains Vitamin B6 as pyridoxal-5-phosphate, its most active form.
Tyrosine is an amino acid required for the production of the neurotransmitters dopamine, and of epinephrine and norepinephrine. The adrenal glands work together with the brain to manage stress, and also use tyrosine to make these same three transmitters. Your brain needs tyrosine to promote mental clarity during times of stress. Tyrosine is also needed by the thyroid gland to make the hormone thyroxine, and the skin needs it to make melanin.
GABA (Gamma-AminoButyric Acid)
GABA is an amino acid that regulates the excitability of nerve circuits in the brain, and is considered the brain’s main “calming” neurotransmitter. Before birth, GABA regulates the proliferation, positioning, and wiring together of the nerve cells. In adults, GABA tightly regulates the activity of synapses but also remains important for the growth of new nerve cells. Low levels of GABA are associated with brain hyperexcitability, untypical behavior, cognitive difficulties, and mood challenges.
Glutamine is an amino acid important in the synthesis of both glutamate, which is an excitatory neurotransmitter, and the calming transmitter GABA. Glutamate is a near-universal neurotransmitter, present in 80 percent of the brain’s nerve cells. It is an important regulator of learning and memory processes and is involved in healthy mood management.
Taurine is an amino acid that fulfill important regulatory roles in the brain, the eyes, and the other organs. It is essential for early brain and eye development, and is concentrated in the breast milk. All through life, taurine helps stabilize our nerve cell electrical activity, and protect against calcium overload that can kill brain cells. Taurine is also essential for healthy mitochondria, the tiny energy generators of all our cells. Taurine also promotes optimal performance of the GABA and glutamate transmitter systems.
This is a modified amino acid that, in the brain, is easily converted into serotonin. 5-HTP helps maintain mental and emotional well-being, reduce occasional feelings of anxiety, support behavioral self-control, promote calm and relaxation, and facilitate going to sleep. It’s also a powerful brain antioxidant.
GABA or gamma-aminobutyric acid is an amino acid that regulates excitability of the brain through GABA receptors. It is essential for brain metabolism and functions to decrease neuronal activity and inhibit nerve cells from excess firing. GABA has mild relaxation properties and can enhance mood and support sleep. Clinical studies on GABA are limited but electroencephalogram (EEG) studies demonstrate the efficacy of GABA supplementation on increasing alpha band brain wave function, which serves to induce relaxation and alleviate stress.1,2
- Yoto A, Motoki M, Murao S, Yokogoshi H. Effects of L-theanine or caffeine intake on changes in blood pressure under physical and psychological stresses. Journal of physiological anthropology. 2012;31:28.
- Abdou AM, Higashiguchi S, Horie K, Kim M, Hatta H, Yokogoshi H. Relaxation and immunity enhancement effects of gamma-aminobutyric acid (GABA) administration in humans. Biofactors. 2006;26(3):201-208.
5-HTP (5-hydroxytryptophan) is an extract from the African plant Griffonia Simplicifolia, and is the precursor to the neurotransmitter serotonin, which plays a role in mood, sleep and appetite. Randomized clinical trials demonstrate the efficacy of 5-HTP supplementation supporting a healthy mood.1,2
- Jangid P, Malik P, Singh P, Sharma M, Gulia AK. Comparative study of efficacy of l-5-hydroxytryptophan and fluoxetine in patients presenting with first depressive episode. Asian journal of psychiatry. Feb 2013;6(1):29-34.
- Shaw K, Turner J, Del Mar C. Tryptophan and 5-hydroxytryptophan for depression. Cochrane Database Syst Rev. 2002(1):CD003198.
L-tyrosine is an amino acid important in the synthesis of brain neurotransmitters. It is the precursor to the brain catecholamines norepinephrine and dopamine which are important in balancing mood and energy. It is also helpful in the process of producing thyroid hormones, which are important in metabolism. Tyrosine supplementation has been shown to improve cognitive performance in healthy individuals1-3 as well as those under periods of stress and fatigue.4-8 Stress tends to deplete the neurotransmitter norepinephrine, and tyrosine is the amino acid building block to replenish it.
- Hase A, Jung SE, aan het Rot M. Behavioral and cognitive effects of tyrosine intake in healthy human adults. Pharmacology, biochemistry, and behavior. Jun 2015;133:1-6.
- Colzato LS, de Haan AM, Hommel B. Food for creativity: tyrosine promotes deep thinking. Psychological research. Sep 2015;79(5):709-714.
- Colzato LS, Jongkees BJ, Sellaro R, Hommel B. Working memory reloaded: tyrosine repletes updating in the N-back task. Frontiers in behavioral neuroscience. 2013;7:200.
- Mahoney CR, Castellani J, Kramer FM, Young A, Lieberman HR. Tyrosine supplementation mitigates working memory decrements during cold exposure. Physiology & behavior. Nov 23 2007;92(4):575-582.
- Lieberman HR. Nutrition, brain function and cognitive performance. Appetite. Jun 2003;40(3):245-254.
- Deijen JB, Wientjes CJ, Vullinghs HF, Cloin PA, Langefeld JJ. Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course. Brain Res Bull. Jan 15 1999;48(2):203-209.
- Neri DF, Wiegmann D, Stanny RR, Shappell SA, McCardie A, McKay DL. The effects of tyrosine on cognitive performance during extended wakefulness. Aviation, space, and environmental medicine. Apr 1995;66(4):313-319.
- Deijen JB, Orlebeke JF. Effect of tyrosine on cognitive function and blood pressure under stress. Brain Res Bull. 1994;33(3):319-323.
Taurine is an amino acid that functions to stabilize nerve cell membranes by regulating the flow of information in and out of cells. Animal studies demonstrate that taurine has been shown to help with memory and thinking skills1 and as well as reducing anxiety,1,2 which suggests it can support a healthy mood and cognition. Taurine promotes relaxation by helping to balance GABA, the brains calming neurotransmitter.
- El Idrissi A. Taurine improves learning and retention in aged mice. Neurosci Lett. May 2 2008;436(1):19-22.
- Kong WX, Chen SW, Li YL, et al. Effects of taurine on rat behaviors in three anxiety models. Pharmacology, biochemistry, and behavior. Feb 2006;83(2):271-276.
Vitamin B6 (pyridoxine) is a water-soluble vitamin essential in the metabolic pathways of amino acids, glucose, and fatty acids and is a cofactor in the production of neurotransmitters including serotonin, epinephrine, norepinephrine, and GABA. It is required by the nervous system and is needed for normal brain function as well as DNA synthesis. Supplementation with Vitamin B6 alone and in combination with other nutrients has been shown to be helpful to improve attention in children.1-4
- Mousain-Bosc M, Roche M, Polge A, Pradal-Prat D, Rapin J, Bali JP. Improvement of neurobehavioral disorders in children supplemented with magnesium-vitamin B6. I. Attention deficit hyperactivity disorders. Magnesium research : official organ of the International Society for the Development of Research on Magnesium. Mar 2006;19(1):46-52.
- Mousain-Bosc M, Roche M, Rapin J, Bali JP. Magnesium VitB6 intake reduces central nervous system hyperexcitability in children. J Am Coll Nutr. Oct 2004;23(5):545S-548S.
- Kidd PM. Attention deficit/hyperactivity disorder (ADHD) in children: rationale for its integrative management. Alternative medicine review : a journal of clinical therapeutic. Oct 2000;5(5):402-428.
- Coleman M, Steinberg G, Tippett J, et al. A preliminary study of the effect of pyridoxine administration in a subgroup of hyperkinetic children: a double-blind crossover comparison with methylphenidate. Biol Psychiatry. Oct 1979;14(5):741-751.
L-glutamine is an amino acid important in the synthesis of the excitatory neurotransmitter glutamate and the inhibitor neurotransmitter GABA. It is also a nutrient for the brain as it is used for energy if the brain does not have enough glucose to function.