L-Tyrosine

5 Reviews

Veg Capsules 90

Essential for neurotransmitter and thyroid hormone synthesis.

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SKU: l-tyrosine-THR
90Veg Capsules
$24.00
In Stock
Ships tomorrow if you order in the next 35 hours 52 minutes.

Product Details

Brand: Thorne Research

Product Code: l-tyrosine-THR

Servings per Container: 90

Quantity per Container: 90 Veg Capsules


L-tyrosine is an amino acid precursor for synthesis of the neurotransmitters norepinephrine and dopamine. By improving the rate of neurotransmitter synthesis, L-tyrosine stimulates the central nervous system. It appears to function as an adaptogen by relieving physical symptoms of stress, such as mood swings. Chronically stressed individuals may not efficiently convert phenylalanine to L-tyrosine, making supplementation with L-tyrosine desirable.

L-tyrosine also serves as a precursor for the thyroid hormone thyroxine and melanin, the pigment responsible for skin and hair color and protection against harmful ultraviolet rays. In addition, L-tyrosine stimulates growth hormone and is involved in adrenal and pituitary function. L-tyrosine is also a powerful antioxidant, scavenging and neutralizing free radicals and inhibiting fat oxidation.

  • •important nutrient for healthy adrenal function
  • •supports the thyroid gland
  • •promotes a positive mental state and healthy stress management

Ratings & Reviews

5 reviews

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7/30/2013 12:00:00 am

Improves mood

by Happier now -

Made a huge difference in my daily mood - helped with menopausal depression.

Not medical or professional advice

5/5/2015 12:00:00 am

The Best

by Penny

These supplements have helped me heal myself.

Not medical or professional advice

8/14/2016 12:00:00 am

I noticed a difference on my son

by Guest

I decided to supplement with L-tyrosine to help my son with his staying on task, after 1 week, his teacher sent a note home saying how much better he was doing. I really like it.

Not medical or professional advice

7/12/2020 12:00:00 am

Definitely - worth using for me!

by Angeline -

I purchased this supplement based on information I read about low thyroid function - I've been using it for about two weeks in conjunction with the iodine (Iodoral) and it's working like the article I read. I take 2 capsules first thing in the morning along with 1 iodine pill (on an empty stomach) and it's been remarkable for me. Where I was feel low energy and foggy - all resulting from hypothyroidism; those symptoms have diminished and I expect will continue to do so the longer I take the combination.

Not medical or professional advice

9/29/2023 12:10 pm

Very good product

by L. E -

I used this for one of my kids, I did noticed it helped his focus.

Not medical or professional advice