NOW Foods L-Tyrosine 750mg Extra Strength 90 Veg Capsules

What this is

NOW Foods L-Tyrosine Extra Strength is a single-ingredient dietary supplement that provides 750 mg of free-form L-tyrosine in one vegetarian capsule, sold here as a 90-capsule bottle. The Supplement Facts panel lists exactly one entry and one amount — L-Tyrosine (Free-Form), 750 mg — with no proprietary blend, no added vitamins or minerals, and no stimulants. The side of the bottle files it under NOW's "Amino Acids" range, and the panel states that the L-tyrosine used in this product is pharmaceutical grade.

The "Extra Strength" in the name is explained on the panel itself: this version carries 750 mg of L-tyrosine per capsule, where NOW's regular-strength L-Tyrosine carries 500 mg per capsule.

You can browse the rest of our Supplements range for other single-ingredient and combination formulas.

What's inside

Tyrosine is an amino acid, and amino acids are the units proteins are built from. It occurs naturally in protein-containing foods such as dairy, eggs, fish, meat, soy and nuts, and the body can also make it from another amino acid, phenylalanine. Biochemically, tyrosine is the starting material the body uses to build the catecholamines — dopamine, noradrenaline and adrenaline — and the pigment melanin. That is general textbook biochemistry about the molecule, not a statement about what a capsule will do for any individual.

"Free-form" is the specific detail worth understanding here. It means the amino acid is supplied on its own rather than bound into a longer protein molecule, so it arrives already in the form the body absorbs, without needing to be broken out of a protein chain first. It is simply a description of the raw material's state, and it is why the panel can print a single clean figure of 750 mg.

The capsule shell and the excipients are short and unremarkable, which on a single-ingredient product is rather the point. The panel's "Other ingredients" line reads: hypromellose (cellulose capsule), microcrystalline cellulose, ascorbyl palmitate and silicon dioxide. Hypromellose is a plant-derived cellulose used to make the capsule shell itself, which is what makes the capsule vegetarian rather than gelatin-based. Microcrystalline cellulose is a plant fiber used as a bulking agent so the powder fills the capsule consistently. Ascorbyl palmitate is a fat-soluble form of vitamin C used here in a processing role, not as a declared nutrient — it does not appear in the Supplement Facts panel and is not present in a nutritionally meaningful amount. Silicon dioxide is a common anti-caking agent that stops powder clumping during manufacture.

If you want neutral background on how dietary supplements are regulated and labeled in general, the NIH Office of Dietary Supplements consumer overview and the FDA's questions and answers on dietary supplements are good starting points. Neither is specific to this product and neither endorses it.

Supplement Facts

Two things on that panel are worth reading properly. "Daily Value not established" simply means no official Daily Value has been set for tyrosine, so there is no percentage to print — it is not a quality judgment. And the printed allergen line is a statement about what the product is not manufactured with; the same line also discloses that the facility handles those allergens for other products, which matters if you are highly sensitive.

How to use it

The label's Suggested Usage is: take 1 capsule 1 to 3 times daily, preferably between meals. That is the manufacturer's full instruction, and the serving size on the panel is one capsule.

Because the usage range is one to three capsules a day, a 90-capsule bottle covers 90 servings — around three months at one capsule daily, or about one month at three capsules daily. Store in a cool, dry place after opening. If you take other supplements or any prescription medication, review the combination with a healthcare professional before adding another product, and do not exceed the serving on the label.

Who it's for

This is a product for adults who specifically want a single, isolated amino acid at a defined dose, rather than a blend. The label is explicit that it is for adults only. Single-ingredient products suit people who want to see exactly what overlaps with anything else they already take — and on this bottle there is nothing to overlap except the tyrosine itself.

The capsule shell is hypromellose rather than gelatin, which will matter to some buyers. The bottle also carries a Non-GMO mark and a kosher certification mark on the front panel. It sits alongside our other Vitamins and Health & Wellness products.

Good to know

The caution printed on the bottle is more specific than most, and it should be read before buying. Transcribed from the label: "For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Persons with thyroid disease (hyperthyroidism), melanoma, or those taking MAO inhibitors or other mood altering medications should seek the advice of a physician before consuming this product. Keep out of reach of children." The label also notes that natural color variation may occur in the product.

That named list is the most important sentence on the package. If any of those apply to you, the manufacturer's own instruction is to speak to a physician first rather than to self-select.

Manufacturing and origin, as printed: manufactured by NOW Foods, 395 S. Glen Ellyn Rd., Bloomingdale, IL 60108, USA. The panel's wording on origin is "Made and quality tested in the USA with globally sourced ingredients" — that is, final manufacture and testing in the USA, with raw materials sourced internationally. The panel also states the product is produced in a GMP facility. The bottle itself is made from 100% post-consumer recycled (PCR) resin.

One note on the statements printed on the front of the bottle. NOW prints several short lines there marked with an asterisk. Under US rules those are manufacturer structure/function statements, which is why they carry an asterisk and the standard FDA footnote. We do not repeat them in our own copy — we describe what the product contains and leave the manufacturer's statements on the manufacturer's label. The FDA's explanation of structure/function claims sets out what that asterisk means. You can also look up label records for products like this one in the NIH Dietary Supplement Label Database.

Frequently Asked Questions

How much L-tyrosine is in each capsule, and how many capsules are in the bottle?

Each capsule provides 750 mg of free-form L-tyrosine, and the bottle holds 90 capsules. The Supplement Facts panel lists a serving size of one capsule, and L-tyrosine is the single item on the panel — there is no blend and no second active ingredient.

Are these capsules vegetarian?

Yes — the capsule shell is hypromellose, which is a plant-derived cellulose rather than gelatin, and the panel lists no animal-derived ingredients.

Does this contain gluten, soy or sesame?

The panel states the product is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. It is produced in a GMP facility that also handles those allergens, which matters if you react severely to any of them.

What is the difference between this and NOW's regular-strength L-Tyrosine?

The amount per capsule is the difference: this Extra Strength version supplies 750 mg of L-tyrosine per capsule and the regular-strength version supplies 500 mg per capsule, as stated on this bottle's own panel. Serving size on both is one capsule, so the comparison is a straight per-capsule one.

How is this order packaged for delivery?

Your order ships in plain, unmarked outer packaging with no description of the contents on the outside. It will not show the Gear Isle name.

Product information compiled and reviewed by the Gear Isle product team. We transcribe supplement facts directly from manufacturer packaging. Found an error? Tell us.

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. Dietary supplement for adults 18 and over. Consult a licensed healthcare professional before use, especially if you have a medical condition, heart concerns, or take prescription medication (including nitrates). Keep out of reach of children.