L-Tyrosine
Looking to buy L-Tyrosine? L-Tyrosine, also written as l-tyrosine, is an amino acid that occurs naturally in protein-rich foods and is also available as a supplement. On this page, you can read about what L-Tyrosine is, where it occurs naturally and the forms it is available in.
By Stefan, last updated: 27-03-2026.
Contents
- L-Tyrosine in our range
- What is L-Tyrosine
- L-Tyrosine in food
- Forms of L-Tyrosine
- Free-form L-Tyrosine
L-Tyrosine in our range
- 500 mg L-Tyrosine (capsules) by Pure Encapsulations
What is L-Tyrosine
L-Tyrosine is a non-essential amino acid. This means the body can also make it from another amino acid, phenylalanine. You also get L-Tyrosine from your diet, particularly from foods that naturally contain protein.
Aminozuren are small building blocks found in all kinds of foods. L-Tyrosine belongs to the group of amino acids with an aromatic structure. Labels usually specify the L-form, as this is the naturally occurring form of tyrosine.
L-Tyrosine in food
L-Tyrosine occurs naturally in various protein-rich foods. These include dairy products, eggs, meat, fish and poultry. Plant-based foods also naturally provide L-Tyrosine, including pulses, nuts, seeds and certain grains.
As L-Tyrosine content is linked to the amount of protein in food, intake varies according to your diet. People who eat a varied diet usually get small amounts of this amino acid from several food sources. The exact amount in food depends on the type of product, its origin and how it is processed.
The body can also make L-Tyrosine from phenylalanine. This means L-Tyrosine does not have to come exclusively from food. It is also available as a standalone supplement, as some people prefer a product with a clearly defined, fixed dose.
Forms of L-Tyrosine
L-Tyrosine is available in different forms. The best-known is free-form L-Tyrosine, often simply referred to as L-Tyrosine. This is the form most commonly found in capsules, tablets and powders.
Another well-known variant is N-Acetyl L-Tyrosine. This is a modified form of L-Tyrosine in which the amino acid is attached to an acetyl group. This form is usually listed separately on the label, as it is a different compound from the free form.
In practice, products clearly state which form is used. The dose also plays a role here. L-Tyrosine from Pure Encapsulations provides a fixed dose of 500 mg L-Tyrosine per capsule.
Free-form L-Tyrosine
Our range contains only free-form L-Tyrosine. This means the amino acid is present as a separate, unbound substance, without being chemically attached to other compounds.
By choosing free-form L-Tyrosine, we keep the formula as pure and straightforward as possible. You know exactly what you are taking, without unnecessary additives or modified variants. This reflects our commitment to transparency and high-quality, simple formulas.
Our mission is to help people choose their health products with the right information
L-Tyrosine is an amino acid that occurs naturally in protein-rich foods. The body also produces it from phenylalanine, and it is available as a standalone supplement.
L-Tyrosine is found in various foods, such as dairy products, meat, fish, eggs, nuts, seeds and pulses. The amount can vary from one product to another.
L-Tyrosine is the free form of the amino acid. N-Acetyl L-Tyrosine is a modified form with an added acetyl group. These two forms are listed separately on the label because they are different compounds.
When choosing an L-Tyrosine supplement, you can look at the form of the amino acid, the dose per capsule and the product’s ingredients.
L-Tyrosine is one of the many amino acids found in food. Aminozuren differ in their structure and properties. L-Tyrosine belongs to the aromatic amino acids, which distinguishes it from other types of amino acids.
The letter ‘L’ refers to the specific molecular structure of the amino acid. This is the form that occurs naturally in food and in the body.
L-Tyrosine occurs naturally in food and can also be produced by the body. It is also available as a supplement, for example for people who prefer a consistent, clearly defined dose.
No, L-Tyrosine is a non-essential amino acid. This means the body can make it itself, including from phenylalanine.