What is L-Tyrosine and what does it support?

L-Tyrosine is an amino acid that serves as a precursor for key neurotransmitters including dopamine, norepinephrine, and epinephrine.* It also supports thyroxine production by the thyroid gland.*

How does it help brain function?

L-Tyrosine supports brain function by providing the building blocks for dopamine, norepinephrine, and adrenaline — neurotransmitters involved in focus, mental alertness, and stress response.*

Is this product non-GMO and gluten free?

Yes. Doctor's Best L-Tyrosine is non-GMO and gluten free. Capsules are made with hypromellose, a plant-based material. Other ingredients include silicon dioxide and magnesium stearate (vegetable source) — no unnecessary fillers.

How is Doctor's Best L-Tyrosine different?

At Doctor's Best, we seamlessly infuse science into the fabric of our brain wellness roadmap. Our L-Tyrosine formula is designed to unlock the potential of this amino acid, providing an effective means to support brain function.*

How much should I take daily?

Take 1 capsule daily between meals, or as recommended by a nutritionally informed physician. Each bottle contains 120 capsules — a 120-day supply at the recommended dose. Up to more may be taken as directed.

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Doctor's BEST L Tyrosine Supplement, for Men & Women, 120 Veg Caps

Product ID: 19442004

Details

Brand
Doctor's BEST
Diet Type
Gluten Free
Flavor
Unflavored
Item Form
Capsule
Item Weight
3.68 ounces
Item dimensions L x W x H
2.38 x 2.38 x

⚡Supports neurotransmitter & thyroid function

🌿Non-GMO & gluten free formula

🧠500mg L-Tyrosine per capsule

$33.33

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Description

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

CLEAN CONSCIOUS - Crafted with non-GMO, gluten-free ingredients to align with your health-forward lifestyle.
PRECISION BRAIN FUEL - Each capsule delivers a potent 500mg dose of L-Tyrosine to supercharge focus and cognitive clarity.
THYROID WELLNESS SUPPORT - Supports natural thyroxine synthesis, promoting balanced energy and metabolism.
NEUROTRANSMITTER POWERHOUSE - Boost dopamine, norepinephrine, and epinephrine production for sharper mental agility and mood balance.
TRUSTED SCIENCE PROVEN RESULTS - Backed by 35+ years of rigorous research from Doctor’s Best, ensuring premium quality and efficacy.

Doctor's BEST L Tyrosine Supplement offers 500mg of pure L-Tyrosine per serving, designed to enhance brain function, neurotransmitter synthesis, and thyroid health. This non-GMO, gluten-free formula supports focus, energy, and stress management, backed by over 35 years of scientific research and trusted quality.

Specifications

ASIN	B00Q8N4LYE
ASIN	B00Q8N4LYE
Age Range Description	Adult
Allergen Information	Gluten Free, Non-GMO
Best Sellers Rank	#99,732 in Health & Household ( See Top 100 in Health & Household ) #3,913 in Sales & Deals #4,146 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 (1,080)
Date First Available	December 10, 2014
Diet Type	Gluten Free
Dosage Form	Capsule
Flavor	Unflavored
Global Trade Identification Number	00753950003163
Item Dimensions	2.38 x 2.38 x 4.44 inches
Item Form	Capsule
Item Highlight	L-Tyrosine 500mg Capsules, Brain Support for Adults, Amino Acid Support 500 mg, Precursor for Thyroxine Production by Thyroid
Item Weight	3.68 ounces
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
Recommended Uses For Product	Brain Health Support, Stress Relief, Energy Management
Special Ingredients	Amino Acid
Supplement Formulation	Individual Supplement
Total Servings Per Container	120
UPC	753950003163
Unit Count	120 Count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$33.33

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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