99% Purity L Tyrosine powder | Nootropic Amino Acid

CAS: 60-18-4

MF: C9H11NO3

MW: 181.19

EINECS: 200-460-4

Specification: 99% min L-Tyrosine Powder

Sample: L-Tyrosine Powder Avaliable

Packaging: 1kg/bag, 25kg/drum

Brand: Ausreson

MOQ: 1 kg

Appearance: White Powder

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

L-Tyrosine Powder Usage and Synthesis.

The study of tyrosine metabolism helps to understand the pathological process of certain diseases.

Such as urinary black acid disease and tyrosine metabolism disorder, the patient's body lacks urinary black acid oxidase and lead to tyrosine metabolite urinary black acid can not continue to decompose, from the urine discharge in the air oxidised into black material, suffering from this disease children's nappies exposed to the air will gradually become black, this urine will also become black after a long time.

Albinism is also related to tyrosine metabolism, the patient lacks tyrosinase and the tyrosine metabolite 3,4-dihydroxyphenylalanine can not form melanin so that the hair and skin are white.

Uses and functions of L-Tyrosine.

Biochemical studies. Standards for the determination of nitrogen in amino acids. Preparation of tissue culture media. Colorimetric quantitative analysis by Miron reaction (protein colouring reaction). The main raw material for the synthesis of many peptide hormones, antibiotics and other drugs.

Amino acid precursor of dopamine and catecholamine.

Nutritional supplements. After the aminocarbonyl reaction with sugar co-heating, it can generate special flavour substances. Used in medicine to treat hyperthyroidism.

Amino acid drugs. Raw materials for amino acid infusion and amino acid compound preparation, as nutritional supplements. Used in the treatment of poliomyelitis and tuberculous encephalitis/hyperthyroidism.

Mechanism of Action of Tyrosine:

A Building Block of Neurotransmitter Synthesis: L-tyrosine crosses the blood-brain barrier and is converted into L-DOPA, which in turn generates dopamine—a key neurotransmitter influencing motivation, pleasure, and motor control. Dopamine is further converted into norepinephrine, regulating attention, alertness, and stress responses.

Biochemical Support for Stress Coping: Under acute stress, norepinephrine reserves may be depleted. L-tyrosine supplementation can support neurotransmitter regeneration and help maintain cognitive function. A 2007 study in *Neuropsychopharmacology* showed that tyrosine supplementation improved cognitive flexibility under cold and hypoxic stress.

A Component of Thyroid Hormones: Tyrosine is a basic structural unit of thyroid hormones T3 and T4, indirectly supporting metabolism and energy regulation.

Characteristic of L-Tyrosine.

White needle crystal or crystalline powder, odourless, bitter taste, mp334℃ (decomposition) insoluble in water (0.04%, 25℃), insoluble in anhydrous ethanol, ether and acetone, soluble in dilute acid or dilute alkali. Isoelectric point 5.66.

Usage Guidelines and Dosage Recommendations

Optimal Time of Administration

• Morning or afternoon: Avoid taking at night as it may affect sleep.
• On an empty stomach or with a small amount of carbohydrates: Improves absorption.
• 30-60 minutes before a stressful event: For situational support.

Dosage Range

• General support: 500-1000 mg/dose, 1-2 times/day
• Acute stress support: 1500-2000 mg single dose
• Studies show ≤12 g/day is well tolerated, but generally does not need to exceed 3000 mg/day.Maximum safe dose: Studie

 Synergistic Combinations

• Vitamins B6, B9, B12, and iron: As cofactors for tyrosine hydroxylase, they support the conversion to neurotransmitters.
• Suitable Herbal Ingredients: Such as Rhodiola rosea or Ashwagandha, may produce synergistic stress support effects.

Product Method of  Bulk L-Tyrosine Powder.

By casein, sericin and other proteins acid hydrolysate neutralisation of the precipitate produced by the separation, dissolved in dilute ammonia, neutralised with acetic acid to pH = 5, recrystallised and obtained. The pig hair hydrolysate extracted cystine of the second crude crystalline pure liquid, stored at 20 ℃ for two days, so that the tyrosine precipitation, filtration, can be obtained tyrosine crude, can also be obtained by refining L-tyrosine. The yield of pig hair is 1%.

L-Tyrosine Powder Frequently Asked Questions

Q1: How does L-tyrosine compare to caffeine?

A: Their mechanisms of action differ. Caffeine blocks adenosine receptors, providing broad-based alertness; tyrosine provides a neurotransmitter precursor, supporting cognitive function under specific stress. Some people combine the two, but caution should be exercised as this may enhance stimuli.

Q2: How long does it take to feel the effects?

A: Context-dependent. For acute stress support, effects may appear within 30-90 minutes. For long-term mood or cognitive support, regular use over several days to weeks may be necessary.

Q3: Will it cause dependence or tolerance?

A: Current research indicates that L-tyrosine does not cause dependence. However, prolonged daily use may lead to receptor adaptation changes. Many experts recommend periodic use (e.g., use during the weekdays and discontinue use on weekends).

Q4: Can it be taken with other supplements?

A: Generally safe, but caution is advised: When taking it with 5-HTP (a serotonin precursor), it should be taken at intervals (e.g., morning and evening) to avoid competitive absorption. Special caution should be exercised when taking this medication concurrently with MAOIs or thyroid-active supplements.

Q5: What is the best way to take it?

A: The powder form allows for flexible dosage. It is soluble in water, juice, or added to smoothies. Due to its slightly bitter taste, it is recommended to mix it with citrus beverages or a small amount of honey. Avoid taking it with high-protein foods, as they may compete for absorption.

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