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PURE L-Tyrosine Capsules
PURE L-Tyrosine Capsules is backordered and will ship as soon as it is back in stock.
- 300 mg high-quality L-tyrosine per capsule
- A non-essential amino acid found in proteins
-
Starting substance for many important substances:
- Relevant for the synthesis of important neurotransmitters such as dopamine, noradrenaline & adrenaline
- As well as thyroxine (thyroid hormone), coenzyme Q10 and the pigment melanin
- No fillers – pure formula from the PURE range
- Vegan & gluten-free – in a plant-based capsule shell
- Lab-tested for heavy metals
- Sustainably packaged in recyclable brown glass
- Contents: 90 capsules / servings
PURE L-Tyrosine Capsules
Edubily gives you 300 mg of highly pure, optimally dosed L-tyrosine. This important amino acid plays a key role in the body, as it is the precursor to several essential messenger substances such as dopamine, noradrenaline and adrenaline. These neurotransmitters are highly important for focus, motivation and stress management. Tyrosine is also involved in the synthesis of thyroid hormones, which regulate energy metabolism .
What is L-tyrosine and where is it found?
L-tyrosine is one of the non-essential amino acids – this means the body can usually produce it itself. It is one of the 20 proteinogenic amino acids that the body uses to build its own proteins. The name “tyrosine” is derived from the Greek tyrós for cheese, as the amino acid was first isolated from casein by Justus von Liebig in 1846.
Tyrosine is naturally found in many protein-rich foods – such as meat, poultry, fish, dairy products like yogurt, cottage cheese or cheese, as well as plant-based sources such as soy products, pumpkin seeds, peanuts, sesame, almonds, bananas and avocados. One egg provides around 250 mg of tyrosine on average, while a serving of lean meat can contain about 1 g.
Biological functions of tyrosine
Tyrosine performs various functions in the body:
-
Building block for neurotransmitters: In the central nervous system, tyrosine is converted into L-DOPA through enzymatic steps – which is then used to form dopamine, noradrenaline and adrenaline. These so-called catecholamines are important messenger substances for mood, focus and reaction speed.
-
Involved in thyroid hormone production: Tyrosine is a precursor of the thyroid hormones triiodothyronine (T3) and thyroxine (T4), which are produced in the thyroid gland from tyrosine and iodine.
-
Basis for melanin: The skin pigment melanin – which is responsible for skin color and tanning, among other things – is also formed from tyrosine.
-
Building block in energy metabolism: The benzoquinone structure in coenzyme Q10, which plays a central role in mitochondrial energy production, is built partly from tyrosine.
-
Role in signal transmission: In many protein structures, tyrosine is crucial for phosphorylation through its so-called phenol group – a process that is necessary for activating or inhibiting enzymes and signaling cascades in cells.
Tyrosine in relation to performance, stress and cognition
Numerous studies – in both animals and humans – have investigated how tyrosine can affect physical and mental performance in certain exceptional situations. Under stressors such as stress, cold, sleep deprivation or intense mental strain, tyrosine was able in some cases to positively influence concentration, working memory and reaction speed.
It is assumed that tyrosine supports neurotransmitter balance through its role as a precursor to dopamine and noradrenaline – especially when the body's own stores are under pressure. In stress models, studies report a lower release of stress hormones as well as improved cognitive stability.
Under normal conditions, however, tyrosine appears to have hardly any effect on mood or performance. It is discussed, however, that it may stabilize working memory under high cognitive load, which has earned tyrosine the nickname “amino acid of creativity” or “of drive” in some contexts.
* cf. literature
PURE L-Tyrosine Capsules – purity without compromise
The PURE range from Edubily stands for high-quality products without unnecessary additives. In the L-Tyrosine capsules, you will find only pure L-Tyrosine – no fillers, no magnesium stearate or other additives. The vegan capsule shell made from HPMC also makes the product suitable for a plant-based diet. With 300 mg L-Tyrosine per capsule, the product offers an ideal dosage for daily supplementation.
* see references:
Chinevere TD, Sawyer RD, Creer AR, Conlee RK, Parcell AC (November 2002). "Effects of L-tyrosine and carbohydrate ingestion on endurance exercise performance". Journal of Applied Physiology. 93 (5): 1590–7.
Deijen JB, Wientjes CJ, Vullinghs HF, Cloin PA, Langefeld JJ (January 1999). "Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course". Brain Research Bulletin. 48 (2): 203–9.
Deijen JB, Orlebeke JF (1994). "Effect of tyrosine on cognitive function and blood pressure under stress". Brain Research Bulletin. 33 (3): 319–23.
Hao S, Avraham Y, Bonne O, Berry EM (February 2001). "Separation-induced body weight loss, impairment in alternation behavior, and autonomic tone: effects of tyrosine". Pharmacology, Biochemistry, and Behavior. 68 (2): 273–81.
Leathwood PD, Pollet P (1982). "Diet-induced mood changes in normal populations". Journal of Psychiatric Research. 17 (2): 147–54.
Lieberman HR, Corkin S, Spring BJ, Wurtman RJ, Growdon JH (August 1985). "The effects of dietary neurotransmitter precursors on human behavior". The American Journal of Clinical Nutrition. 42 (2): 366–70.
Magill RA, Waters WF, Bray GA, Volaufova J, Smith SR, Lieberman HR, et al. (August 2003). "Effects of tyrosine, phentermine, caffeine D-amphetamine, and placebo on cognitive and motor performance deficits during sleep deprivation". Nutritional Neuroscience. 6 (4): 237–46.
Mahoney CR, Castellani J, Kramer FM, Young A, Lieberman HR (November 2007). "Tyrosine supplementation mitigates working memory decrements during cold exposure". Physiology & Behavior. 92 (4): 575–82.
Neri DF, Wiegmann D, Stanny RR, Shappell SA, McCardie A, McKay DL (April 1995). "The effects of tyrosine on cognitive performance during extended wakefulness". Aviation, Space, and Environmental Medicine. 66 (4): 313–9.
Rasmussen DD, Ishizuka B, Quigley ME, Yen SS (October 1983). "Effects of tyrosine and tryptophan ingestion on plasma catecholamine and 3,4-dihydroxyphenylacetic acid concentrations". The Journal of Clinical Endocrinology and Metabolism. 57 (4): 760–3.
Reinstein DK, Lehnert H, Wurtman RJ (December 1985). "Dietary tyrosine suppresses the rise in plasma corticosterone following acute stress in rats". Life Sciences. 37 (23): 2157–63.
Strüder HK, Hollmann W, Platen P, Donike M, Gotzmann A, Weber K (April 1998). "Influence of paroxetine, branched-chain amino acids and tyrosine on neuroendocrine system responses and fatigue in humans". Hormone and Metabolic Research. 30 (4): 188–94.
Thomas JR, Lockwood PA, Singh A, Deuster PA (November 1999). "Tyrosine improves working memory in a multitasking environment". Pharmacology, Biochemistry, and Behavior. 64 (3): 495–500.
Frequently asked questions & answers from Edubily
Does this product contain fillers?
No, the capsules are part of the PURE range, which contains only pure L-tyrosine – with no additives or fillers.
Is this product vegan?
Yes, both the L-tyrosine it contains and the capsule shell made from HPMC are 100% vegan.
Who is this product not suitable for?
L-tyrosine capsules are not suitable for pregnant or breastfeeding women.
Nutrition facts
| Contents | per serving (= 1 capsule) |
|---|---|
| L-tyrosine | 300 mg |
Ingredients
L-tyrosine, hydroxypropyl methylcellulose (capsule shell).
Recommended use: Swallow 1 capsule daily with sufficient liquid.
Notes: Do not exceed the stated recommended daily dose. This product is not a substitute for a balanced and varied diet or a healthy lifestyle. Keep out of reach of small children. Store in a cool, dry place away from light.
This product is not recommended for pregnant or breastfeeding women.
Quality & safety at the highest standard
Edubily places great importance on developing and manufacturing products on a scientifically sound basis. Its production is carried out by experienced partners in Germany and Austria, who are regularly inspected without prior notice and are certified according to IFS Food and HACCP. This means Edubily meets strict hygiene and safety requirements. In addition, all products are tested again in independent laboratories for factors such as heavy metals, nutrient levels, and possible contaminants. Edubily's goal is not simply to offer just any supplements, but safe and effective ones that support health and well-being through carefully considered formulas and continuous development. This allows fitness athletes and health-conscious people to be confident they are getting a high-quality product designed with responsibility.
PURE L-Tyrosine Capsules
- 300 mg high-quality L-tyrosine per capsule
- A non-essential amino acid found in proteins
-
Starting substance for many important substances:
- Relevant for the synthesis of important neurotransmitters such as dopamine, noradrenaline & adrenaline
- As well as thyroxine (thyroid hormone), coenzyme Q10 and the pigment melanin
- No fillers – pure formula from the PURE range
- Vegan & gluten-free – in a plant-based capsule shell
- Lab-tested for heavy metals
- Sustainably packaged in recyclable brown glass
- Contents: 90 capsules / servings
PURE L-Tyrosine Capsules
Edubily gives you 300 mg of highly pure, optimally dosed L-tyrosine. This important amino acid plays a key role in the body, as it is the precursor to several essential messenger substances such as dopamine, noradrenaline and adrenaline. These neurotransmitters are highly important for focus, motivation and stress management. Tyrosine is also involved in the synthesis of thyroid hormones, which regulate energy metabolism .
What is L-tyrosine and where is it found?
L-tyrosine is one of the non-essential amino acids – this means the body can usually produce it itself. It is one of the 20 proteinogenic amino acids that the body uses to build its own proteins. The name “tyrosine” is derived from the Greek tyrós for cheese, as the amino acid was first isolated from casein by Justus von Liebig in 1846.
Tyrosine is naturally found in many protein-rich foods – such as meat, poultry, fish, dairy products like yogurt, cottage cheese or cheese, as well as plant-based sources such as soy products, pumpkin seeds, peanuts, sesame, almonds, bananas and avocados. One egg provides around 250 mg of tyrosine on average, while a serving of lean meat can contain about 1 g.
Biological functions of tyrosine
Tyrosine performs various functions in the body:
-
Building block for neurotransmitters: In the central nervous system, tyrosine is converted into L-DOPA through enzymatic steps – which is then used to form dopamine, noradrenaline and adrenaline. These so-called catecholamines are important messenger substances for mood, focus and reaction speed.
-
Involved in thyroid hormone production: Tyrosine is a precursor of the thyroid hormones triiodothyronine (T3) and thyroxine (T4), which are produced in the thyroid gland from tyrosine and iodine.
-
Basis for melanin: The skin pigment melanin – which is responsible for skin color and tanning, among other things – is also formed from tyrosine.
-
Building block in energy metabolism: The benzoquinone structure in coenzyme Q10, which plays a central role in mitochondrial energy production, is built partly from tyrosine.
-
Role in signal transmission: In many protein structures, tyrosine is crucial for phosphorylation through its so-called phenol group – a process that is necessary for activating or inhibiting enzymes and signaling cascades in cells.
Tyrosine in relation to performance, stress and cognition
Numerous studies – in both animals and humans – have investigated how tyrosine can affect physical and mental performance in certain exceptional situations. Under stressors such as stress, cold, sleep deprivation or intense mental strain, tyrosine was able in some cases to positively influence concentration, working memory and reaction speed.
It is assumed that tyrosine supports neurotransmitter balance through its role as a precursor to dopamine and noradrenaline – especially when the body's own stores are under pressure. In stress models, studies report a lower release of stress hormones as well as improved cognitive stability.
Under normal conditions, however, tyrosine appears to have hardly any effect on mood or performance. It is discussed, however, that it may stabilize working memory under high cognitive load, which has earned tyrosine the nickname “amino acid of creativity” or “of drive” in some contexts.
* cf. literature
PURE L-Tyrosine Capsules – purity without compromise
The PURE range from Edubily stands for high-quality products without unnecessary additives. In the L-Tyrosine capsules, you will find only pure L-Tyrosine – no fillers, no magnesium stearate or other additives. The vegan capsule shell made from HPMC also makes the product suitable for a plant-based diet. With 300 mg L-Tyrosine per capsule, the product offers an ideal dosage for daily supplementation.
* see references:
Chinevere TD, Sawyer RD, Creer AR, Conlee RK, Parcell AC (November 2002). "Effects of L-tyrosine and carbohydrate ingestion on endurance exercise performance". Journal of Applied Physiology. 93 (5): 1590–7.
Deijen JB, Wientjes CJ, Vullinghs HF, Cloin PA, Langefeld JJ (January 1999). "Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course". Brain Research Bulletin. 48 (2): 203–9.
Deijen JB, Orlebeke JF (1994). "Effect of tyrosine on cognitive function and blood pressure under stress". Brain Research Bulletin. 33 (3): 319–23.
Hao S, Avraham Y, Bonne O, Berry EM (February 2001). "Separation-induced body weight loss, impairment in alternation behavior, and autonomic tone: effects of tyrosine". Pharmacology, Biochemistry, and Behavior. 68 (2): 273–81.
Leathwood PD, Pollet P (1982). "Diet-induced mood changes in normal populations". Journal of Psychiatric Research. 17 (2): 147–54.
Lieberman HR, Corkin S, Spring BJ, Wurtman RJ, Growdon JH (August 1985). "The effects of dietary neurotransmitter precursors on human behavior". The American Journal of Clinical Nutrition. 42 (2): 366–70.
Magill RA, Waters WF, Bray GA, Volaufova J, Smith SR, Lieberman HR, et al. (August 2003). "Effects of tyrosine, phentermine, caffeine D-amphetamine, and placebo on cognitive and motor performance deficits during sleep deprivation". Nutritional Neuroscience. 6 (4): 237–46.
Mahoney CR, Castellani J, Kramer FM, Young A, Lieberman HR (November 2007). "Tyrosine supplementation mitigates working memory decrements during cold exposure". Physiology & Behavior. 92 (4): 575–82.
Neri DF, Wiegmann D, Stanny RR, Shappell SA, McCardie A, McKay DL (April 1995). "The effects of tyrosine on cognitive performance during extended wakefulness". Aviation, Space, and Environmental Medicine. 66 (4): 313–9.
Rasmussen DD, Ishizuka B, Quigley ME, Yen SS (October 1983). "Effects of tyrosine and tryptophan ingestion on plasma catecholamine and 3,4-dihydroxyphenylacetic acid concentrations". The Journal of Clinical Endocrinology and Metabolism. 57 (4): 760–3.
Reinstein DK, Lehnert H, Wurtman RJ (December 1985). "Dietary tyrosine suppresses the rise in plasma corticosterone following acute stress in rats". Life Sciences. 37 (23): 2157–63.
Strüder HK, Hollmann W, Platen P, Donike M, Gotzmann A, Weber K (April 1998). "Influence of paroxetine, branched-chain amino acids and tyrosine on neuroendocrine system responses and fatigue in humans". Hormone and Metabolic Research. 30 (4): 188–94.
Thomas JR, Lockwood PA, Singh A, Deuster PA (November 1999). "Tyrosine improves working memory in a multitasking environment". Pharmacology, Biochemistry, and Behavior. 64 (3): 495–500.
Frequently asked questions & answers from Edubily
Does this product contain fillers?
No, the capsules are part of the PURE range, which contains only pure L-tyrosine – with no additives or fillers.
Is this product vegan?
Yes, both the L-tyrosine it contains and the capsule shell made from HPMC are 100% vegan.
Who is this product not suitable for?
L-tyrosine capsules are not suitable for pregnant or breastfeeding women.
Nutrition facts
| Contents | per serving (= 1 capsule) |
|---|---|
| L-tyrosine | 300 mg |
Ingredients
L-tyrosine, hydroxypropyl methylcellulose (capsule shell).
Recommended use: Swallow 1 capsule daily with sufficient liquid.
Notes: Do not exceed the stated recommended daily dose. This product is not a substitute for a balanced and varied diet or a healthy lifestyle. Keep out of reach of small children. Store in a cool, dry place away from light.
This product is not recommended for pregnant or breastfeeding women.
Quality & safety at the highest standard
Edubily places great importance on developing and manufacturing products on a scientifically sound basis. Its production is carried out by experienced partners in Germany and Austria, who are regularly inspected without prior notice and are certified according to IFS Food and HACCP. This means Edubily meets strict hygiene and safety requirements. In addition, all products are tested again in independent laboratories for factors such as heavy metals, nutrient levels, and possible contaminants. Edubily's goal is not simply to offer just any supplements, but safe and effective ones that support health and well-being through carefully considered formulas and continuous development. This allows fitness athletes and health-conscious people to be confident they are getting a high-quality product designed with responsibility.