---
product_id: 19442004
title: "Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps"
brand: "doctor's best"
price: "€ 34.08"
currency: EUR
in_stock: true
category: "Doctor's Best"
url: https://www.desertcart.hr/products/19442004-doctors-best-l-tyrosine-supplement-for-men-and-women-l
store_origin: HR
region: Croatia
---

# Precursor to dopamine & norepinephrine Non-GMO & gluten free formula 500mg L-Tyrosine per capsule Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps

**Brand:** doctor's best
**Price:** € 34.08
**Availability:** ✅ In Stock

## Summary

> 🧬 Unlock your brain’s full potential with every capsule!

## Quick Answers

- **What is this?** Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps by doctor's best
- **How much does it cost?** € 34.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/19442004-doctors-best-l-tyrosine-supplement-for-men-and-women-l)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Thyroid Harmony:** Essential precursor for thyroxine hormone, promoting balanced glandular function.
- • **Neurotransmitter Catalyst:** Supports dopamine, norepinephrine & epinephrine production for sharper mental agility.
- • **Clean & Conscious Nutrition:** Non-GMO, gluten-free, and vegan-friendly capsules designed for mindful wellness.
- • **Trusted Science, Proven Results:** Backed by 35+ years of rigorous research from Doctor’s Best for reliable brain support.
- • **Brainpower Boost in Every Capsule:** 500mg of pure L-Tyrosine to elevate focus and cognitive clarity.

## Overview

Doctor's Best L-Tyrosine delivers 500mg of a conditionally essential amino acid per capsule, supporting neurotransmitter synthesis and thyroid hormone production. This non-GMO, gluten-free supplement is designed for adults seeking enhanced focus, brain health, and balanced energy, backed by over 35 years of scientific research.

## Description

Tyrosine is a conditionally essential amino acid that is a precursor to the catecholamine transmitters dopamine, epinephrine, and norepinephrine. These are vital messengers for the brain and the body’ S other nerve networks. The thyroid gland also needs Tyrosine to make the vital hormone thyroxine.

## Features

- L TYROSINE SUPPLEMENT: At Doctor's Best, we seamlessly infuse science into the fabric of our brain wellness roadmap. Our L-tyrosine supplement provides 500 mg per serving to support wellness
- BRAIN HEALTH SUPPORT: Our L-Tyrosine formula is designed to unlock the potential of this amino acid, providing an effective means to support focus & brain function
- NEUROTRANSMITTER & THYROID SUPPORT: L-Tyrosine serves as a precursor for key nerve messengers (dopamine, norepinephrine, & epinephrine), & also plays a role in the body's natural thyroxine production
- SUGGESTED ADULT USE: Take 1 capsule daily between meals for brain transmitter support, or as recommended by a nutritionally informed physician. Our supplement is non GMO and gluten free
- DOCTOR'S BEST: Good nutrition starts with sound science. For over 35 years, we have been dedicated to providing only thoroughly researched and rigorously tested supplements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00Q8N4LYE |
| ASIN  | B00Q8N4LYE |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Non-GMO |
| Best Sellers Rank | #90,289 in Health & Household ( See Top 100 in Health & Household ) #3,781 in Sales & Deals #3,922 in Blended Vitamin & Mineral Supplements |
| Brand Name | Doctor's BEST |
| Color | No Color |
| Container Type | Bottle |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,079) |
| Date First Available  | December 10, 2014 |
| Diet Type | Gluten Free |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00753950003163 |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions | 2.38 x 2.38 x 4.44 inches |
| Item Form | Capsule |
| Item Weight | 0.23 Pounds |
| Item model number  | DRB-00316 |
| Manufacturer | Doctor's Best |
| Manufacturer  | Doctor's Best |
| Manufacturer Part Number | DRB-00316 |
| Material Features | GMO Free |
| Model Name | Doctor's Best L-Tyrosine, Healthy Brain Function, Amino Acid, Healthy Glandular Function, Non-GMO, Gluten Free, 120 VC |
| Model Number | DRB-00316 |
| Number of Items | 1 |
| Primary Supplement Type | Magnesium |
| Product Benefits | Brain Health Support, Energy Management, Stress Relief |
| Product Dimensions  | 2.38 x 2.38 x 4.44 inches; 3.68 ounces |
| Special Ingredients | Amino Acid |
| Supplement Formulation | Individual Supplement |
| Total Servings Per Container | 120 |
| UPC | 753950003163 |
| Unit Count | 120 Count |

## Product Details

- **Brand:** Doctor's BEST
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.23 Pounds
- **Item dimensions L x W x H:** 2.38 x 2.38 x 4.44 inches
- **Primary Supplement Type:** Magnesium
- **Product Benefits:** Brain Health Support, Energy Management, Stress Relief
- **Special Ingredients:** Amino Acid
- **Unit Count:** 120 Count

## Images

![Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps - Image 1](https://m.media-amazon.com/images/I/61YmvaUp7XL.jpg)
![Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps - Image 2](https://m.media-amazon.com/images/I/71tol6P-FML.jpg)
![Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps - Image 3](https://m.media-amazon.com/images/I/61ScRINdvZL.jpg)
![Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps - Image 4](https://m.media-amazon.com/images/I/71BKe9pss5L.jpg)
![Doctors Best L Tyrosine Supplement for Men & Women - L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid - 120 Veg Caps - Image 5](https://m.media-amazon.com/images/I/71aIqpibxaL.jpg)

## Frequently Bought Together

- Doctors Best L-Tyrosine, 500 mg, Brain Transmitter Support, Non-GMO, Gluten Free 120 Veggie Caps
- Doctors BEST High Absorption Magnesium Lysinate Glycinate 100% Chelated, Muscle Relaxation & Sleep Support, Non-GMO, Gluten Free, Soy Free, Vegan, 100% Chelated 240 Tablets
- Doctor's Best L-Theanine Contains Suntheanine, Helps Reduce Stress & Sleep, Non-GMO, Gluten Free, Vegan, 150 mg (DRB-00197), 90 Count

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**Shop now:** [https://www.desertcart.hr/products/19442004-doctors-best-l-tyrosine-supplement-for-men-and-women-l](https://www.desertcart.hr/products/19442004-doctors-best-l-tyrosine-supplement-for-men-and-women-l)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-10*