Enter Discount Code 10HEALTHY at checkout for $10 off orders of $100 or more! Brand exclusions apply - Click for details
L-Tyrosine 500 mg. - 100 Capsules Default Category Douglas Labs
L-Tyrosine 500 mg. - 100 Capsules Default Category Douglas Labs
Sold Out

    L-Tyrosine 500 mg. - 100 Capsules



    Douglas Laboratories L-Tyrosine 500 mg has been discontinued by the manufacturer. 

    L-Tyrosine supplies 500 mg of L-tyrosine in each gelatin capsule.
    L-Tyrosine is indicated for individuals that want to supplement this individual amino acid.


    Each serving contains:

    L-Tyrosine   -   500 mg

    Other ingredients: Gelatin (capsule), cellulose and vegetable stearate.

    Suggested Use

    As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

    More Info.

    Tyrosine is a precursor of important neurotransmitters in the brain, such as dopamine, epinephrine (adrenaline) and norepinephrine (noradrenaline). The synthesis of these neurotransmitters is limited by the rate of tyrosine entry from plasma into the brain and competing amino acids. L-tyrosine is a conditionally essential amino acid that can be synthesized by the body from the essential amino acid phenylalanine. Therefore, adequate tyrosine production depends on a sufficient supply of phenylalanine in the diet. However, in people that have phenylketonuria (PKU) who cannot synthesize tyrosine from phenylalanine, tyrosine is an essential amino acid.

    Tyrosine may help support the effects related to stress. Under stressful conditions, it is hypothesized that the brain may not be able to synthesize enough tyrosine from phenylalanine. Catecholamines like epinephrine, norepinephrine, and dopamine that are synthesized from tyrosine may become depleted during stress. Therefore, supplementation with tyrosine may allow increased catecholamine synthesis for the brain, and support healthy response to stress. There is some evidence in animals and humans that supplemental tyrosine might support performance, memory, and learning, under extreme environmental conditions, in addition to alertness following sleep deprivation.