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Supplier of Superior Nutritional Supplements


A Constituent of Dietary Protein and a Precursor to Neurotransmitters

L-Tyrosine Function
Supports Brain Function*
L-Tyrosine Highlights
  • Brain Neurotransmitter Precursor
    • e.g. Dopamine, Epinephrine and Norepinephrine
What Does L-Tyrosine Do?

L-Tyrosine, a constituent of dietary protein, is a substrate or precursor to the catecholamine neurotransmitters norepinephrine, epinephrine and dopamine, the levels of which can be affected by the amount of tyrosine consumed.* Jarrow Formulas® L-Tyrosine contains pure crystalline L-Tyrosine.

Suggested Usage

Take 1 capsule 1 or 2 times per day on an empty stomach, immediately after arising in the morning, preferably with juice as a carbohydrate source or as directed by your qualified healthcare professional.

NOTE: If you have a medical condition (especially bipolar or a history of malignant melanoma), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially MAO inhibitors), consult your healthcare professional before using this product.

Other Ingredients

Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of bovine gelatin.

No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts.

Store in a cool, dry place.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Product Categories
Product Information
100 Capsules
500 mg Per Serving
Code: LTS
Product #: 115001
Reformulation Date:
Design Change Date: 08/22/2013
Last Update: 11/24/2020

Keep out of the reach of children.