Manufacturer | Natural Factors |
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Place of Business | NATURAL FACTORS Coquitlam, B.C. V3K 6Y2 |
Parcel Dimensions | 11.6 x 6.5 x 6.3 cm; 110 g |
ASIN | B0DTZ7TNLG |
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Natural Factors L-Tyrosine 500 mg 120 Vegetarian Capsules - Decreases Mental Fatigue, Stress Support - Proudly Canadian
Purchase options and add-ons
Brand | Natural Factors |
Flavour | Unflavored |
Primary supplement type | L-Tyrosine |
Unit count | 120.0 Count |
Item form | Capsule |
Age range (description) | Adult |
Number of Items | 1 |
Colour | White |
Allergen information | Dairy Free, Soy Free, Gluten Free, Wheat Free, Shellfish Free, Non-GMO, Fish Free, Tree Nut Free, Egg Free, Corn-Free See more |
UPC | 627765027969 |
About this item
- PRODUCTION OF NEUROTRANSMITTERS FOR STRESS RELIEF: L-tyrosine is a non-essential amino acid important in the production of neurotransmitters such as dopamine, epinephrine, and norepinephrine - required for managing stress.
- DECREASES COGNITIVE FATIGUE: Natural Factors L-Tyrosine is a free-form amino acid that helps decrease cognitive fatigue resulting from physically stressful situations, such as extended wakefulness, exposure to cold, and excessive noise.
- THIRD PARTY TESTING - ISURA VERIFIED CLEAN: The ISURA seal is your assurance that this product is independently verified as clean and safe, and has been tested for up to 800 possible contaminants. This product is ISURA verified clean, one of the highest testing standards in the world.
- VEGAN, NON-GMO, GLUTEN FREE, FORUMULATED & PACKAGED IN B.C.
- NATURAL PRODUCT NUMBER (NPN): 80033283
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Important information
Ingredients
Medicinal Ingredients: Each vegetarian capsule contains: L-tyrosine 500 mg. Non-medicinal Ingredients: Vegetarian capsule (carbohydrate gum [cellulose], purified water), dibasic calcium phosphate dihydrate, vegetable grade magnesium stearate (lubricant), silica.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
Product Description
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Natural Factors NAC 600mg
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Natural Factors L-Lysine 1000mg
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Natural Factors L-Tyrosine 500 mg
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Natural Factors L-Glutamine 1000 mg
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Natural Factors L-Arginine 1000 mg
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Natural Factors L-Tryptophan 220 mg
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Customer Reviews |
4.6 out of 5 stars 830
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4.4 out of 5 stars 66
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4.6 out of 5 stars 17
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4.4 out of 5 stars 13
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4.4 out of 5 stars 30
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4.4 out of 5 stars 33
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Size | 180 Veg Caps | 120 Tabs | 120 Veg Caps | 60 Veg Caps | 180 Tabs | 90 Veg Caps |
Benefits | Scavenges Free Radicals & Reduces Oxidative Stress. Aids in Respiratory Health. | Helps Reduce the Recurrence, Severity, & Healing Time of Cold Sores | Helps Decrease Cognitive Fatigue Resulting from Physically Stressful Situations | Enhances Muscle Tissue Repair After Exercise | Helps Support Healthy Heart Function | Assists in the Building of Lean Muscle Mass when Combined with Regular Resistance Training |
Key Ingredients | NAC (N-Acetyl-L-Cysteine) | L-Lysine (hydrochloride) | L-Tyrosine | L-Glutamine | L-Arginine (hydrochloride) | L-Tryptophan |
Potency | 600 mg | 1000 mg | 500 mg | 1000 mg | 1000 mg | 220 mg |
Gluten Free, Vegetarian, Non-GMO | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
No Artificial Colours, Preservatives or Sweeteners | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Third Party Tested (ISURA) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Canadian | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Product information
Technical Details
Additional Information
鶹 Rank |
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Product details
- Parcel Dimensions : 11.6 x 6.5 x 6.3 cm; 110 g
- Date First Available : Jan. 24 2025
- Manufacturer : Natural Factors
- Place of Business : NATURAL FACTORS Coquitlam, B.C. V3K 6Y2
- ASIN : B0DTZ7TNLG
- Country of origin : Canada
- 鶹 Rank: #6,457 in Health & Personal Care (See Top 100 in Health & Personal Care)
- Customer Reviews:
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Boost in mental endurance
Top reviews from Canada
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- Reviewed in Canada on July 6, 2025Verified PurchaseI received everything within 24 hours. Everything is fine but of course it’s too early to say if I see a difference with the capsules. Usually everything I order from natural factors is very good, so looking forward to results in the future.
- Reviewed in Canada on July 7, 2025Verified PurchaseDecently priced and more convenient than hunting between stores in town here because it’s not widely carried, around here anyways. Arrived quickly
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Reviewed in Canada on July 11, 2025Verified PurchaseExcellente marque , donne energie mentale et physique
- Reviewed in Canada on May 3, 2025Verified PurchaseExcellent product and a very good price. 2 a day giving me better and focus and energy all afternoon
- Reviewed in Canada on April 22, 2025Verified PurchaseHelps my adhd teens focus on schoolwork.
- Reviewed in Canada on May 14, 2025Verified PurchaseZERO health impacts and ZERO benefits exhibited. Very disappointing.
- Reviewed in Canada on April 11, 2025This has been a good addition to my morning supplements. I'm always looking for something to help me focus better and have recently added L-Tyrosine and Lions Mane.
Unlike some of my other supplements, this is something that my body already makes so I feel safe taking it.
Since I don't take any prescription medications I knew there weren't any interactions I should be aware of.
It can be hard to tell exactlly what a new supplement is doing but I can say that I feel "better" since I started taking these on a consistent basis two weeks ago.
One thing it's supposed to help with is mental fatigue due to stress so I ordered it with that in mind and I believe it's making a difference for me.
I also appreciate that this is a product that's been third party tested by isura. I like knowing that I am getting what the label says but without any contaminants. That isura logo is my proof!
This is an easy to swallow capsule that doesn't have any weird smells. It doesn't upset my digestion.
The value is there for me for this supplement as it is making me feel better, even though "better" is hard to quantify.
I'll keep using this.
- Reviewed in Canada on May 7, 2025L-Tyrosine may be helpful in athletic performance and help enhance brain power and reduce stress. It is an amino acid which may help build proteins, enzymes and may help produce thyroid hormones. I have noticed the inclusion of this supplement in nootropic (brain health) blends. I will try this for a period of time and if I feel it is helping will continue with it.
Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.