CanPrev L-Tyrosine Vegan Amino Acid Powder | 220g
Visit the CanPrev Store| Brand | CanPrev |
| Serving | 1 scoop (5 g), up to 2 times daily (mix well into liquid) |
| Licensed Natural Health Product | NPN 80086832 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada  |
About this item
- 5 G OF PURE L-TYROSINE PER SCOOP: Each scoop of this vegan amino acid powder provides 5 g of L-Tyrosine (fermented, vegan source) - take 1 scoop, up to 2 times per day, or as directed by a healthcare practitioner.
- HELPS DECREASE COGNITIVE FATIGUE FROM PHYSICAL STRESS: The recommended use authorized on this product's Health Canada licence (NPN 80086832): helps to decrease cognitive fatigue due to physically stressful situations.
- FERMENTED, VEGAN AMINO ACID POWDER: A fermented source of L-Tyrosine with no fillers or binders and no other medicinal or non-medicinal ingredients added.
- EASY TO MIX, FLEXIBLE DOSING: Dissolves into water, juice or a smoothie - take 1 scoop (5 g), up to 2 times per day, up to one hour before or during periods of physical stress. For occasional use only.
- VEGAN, GMO-FREE FORMULA: No gluten, dairy, soy, sugar, or artificial colours, flavours or preservatives.
- MADE IN CANADA, LICENSED BY HEALTH CANADA: Formulated and made in Canada by CanPrev Natural Health Products Ltd. and licensed under NPN 80086832.
Product Description
L-Tyrosine Vegan Amino Acid Powder - 5 g Pure L-Tyrosine per Scoop
CanPrev L-Tyrosine Vegan Amino Acid Powder delivers a full 5 g dose of fermented, vegan L-Tyrosine in every scoop, with no fillers, no binders, and no other added ingredients. Mix into water, juice or a smoothie to help decrease cognitive fatigue due to physically stressful situations - this product's Health Canada-authorized use. For occasional use, up to one hour before or during periods of physical stress. Licensed Natural Health Product NPN 80086832.
La poudre CanPrev L-Tyrosine, acide aminé végétalien, fournit une dose complète de 5 g de L-Tyrosine fermentée et végétalienne dans chaque mesure, sans agents de remplissage, sans liants et sans autre ingrédient ajouté. Mélangez dans de l'eau, du jus ou un smoothie pour aider à atténuer la fatigue cognitive causée par des situations de stress physique - l'usage autorisé par Santé Canada pour ce produit. Pour usage occasionnel, jusqu'à une heure avant ou pendant des périodes de stress physique.
Built for Focus Under Physical Stress
5 g of fermented, vegan L-Tyrosine per scoop - flexible dosing, up to 2 times daily
5 g of Pure L-Tyrosine per Scoop
Each scoop delivers a full 5 g dose of fermented, vegan L-Tyrosine - take 1 scoop, up to 2 times per day, or as directed by a healthcare practitioner.
A Fermented, Vegan Amino Acid Source
Made from a fermented, vegan source of L-Tyrosine, with no fillers, binders, or other added medicinal or non-medicinal ingredients.
Why This Formula
CanPrev L-Tyrosine is built around one real active - fermented, vegan L-Tyrosine - delivered in an easy-to-mix powder for occasional use during physically stressful situations.
Helps Decrease Cognitive Fatigue from Physical Stress
This product's Health Canada-authorized use: helps to decrease cognitive fatigue due to physically stressful situations.
5 g L-Tyrosine per Scoop
Each scoop delivers a full 5 g dose of fermented, vegan L-Tyrosine.
Fermented, Vegan Amino Acid
A fermented source of L-Tyrosine with no fillers, no binders, and no other added ingredients.
Flexible, Easy-to-Mix Powder
Mix into water, juice or a smoothie - take 1 scoop, up to 2 times daily, up to one hour before or during periods of physical stress.
CanPrev L-Tyrosine Vegan Amino Acid Powder: Supplement Facts
Each scoop (5 g) contains:
- L-Tyrosine (fermented, vegan source)5 g
Non-Medicinal Ingredients: None.
Recommended Use or Purpose: Helps to decrease cognitive fatigue due to physically stressful situations.
Recommended Dose (Adults 19 years and older): Take 1 scoop (5 g), 2 times per day, or as directed by a healthcare practitioner. Mix well into 1 to 2 cups of liquid (water, juice, etc.) and consume immediately. Take up to one hour before, or during, periods of physical stress. Recommended Duration of Use: For occasional use only.
Cautions and Warnings: As with any natural health product, consult a healthcare practitioner before use of this product if you are pregnant, breastfeeding, or following a low-protein diet. Do not use if the safety seal is broken. Keep out of reach of children.
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. This item is sold and shipped by Amazon.ca.
Chaque mesure (5 g) contient :
- L-Tyrosine (source fermentée et végétalienne)5 g
Ingrédients non médicinaux : Aucun.
Usage ou fins recommandés : Aide à atténuer la fatigue cognitive causée par des situations de stress physique.
Dose recommandée (adultes de 19 ans et plus) : Prendre 1 mesure (5 g), 2 fois par jour, ou selon l'avis d'un praticien de soins de santé. Bien mélanger dans 1 à 2 tasses de liquide (eau, jus, etc.) et consommer immédiatement. Prendre jusqu'à une heure avant, ou pendant, des périodes de stress physique. Durée d'utilisation recommandée : Pour usage occasionnel seulement.
Mises en garde et avertissements : Comme avec tout produit de santé naturel, consultez un praticien de soins de santé avant l'utilisation de ce produit si vous êtes enceinte, allaitante, ou si vous suivez un régime pauvre en protéines. Ne pas utiliser si le sceau de sécurité est brisé. Tenir hors de la portée des enfants.
NPN 80086832
Add CanPrev L-Tyrosine to your routine
Get CanPrev L-Tyrosine Vegan Amino Acid Powder on Amazon.ca - fast, protected delivery.
Get it on Amazon.caWhy CanPrev L-Tyrosine
5 g of pure, fermented, vegan L-Tyrosine per scoop - an easy-to-mix powder for occasional use during physically stressful situations.
5 g L-Tyrosine per scoop
Each scoop delivers a full 5 g dose of fermented, vegan L-Tyrosine - no fillers, no binders.
Helps decrease cognitive fatigue from physical stress
This product's Health Canada-authorized use: helps to decrease cognitive fatigue due to physically stressful situations.
Flexible, easy-to-mix powder
Mix into water, juice or a smoothie - adjust to 1 or 2 scoops daily rather than being fixed to a capsule size.
Trusted Canadian brand
CanPrev - formulated and made in Canada, licensed under NPN 80086832.
Inside every scoop
5 g of L-Tyrosine (fermented, vegan source) per scoop - take 1 scoop, up to 2 times daily, or as directed by a healthcare practitioner.
How to use it
Take 1 scoop, up to twice daily
Adults (19 years and older): take 1 scoop (5 g), 2 times per day, or as directed by a healthcare practitioner.
Mix well before drinking
Mix the scoop well into 1 to 2 cups of liquid (water, juice, etc.) and consume immediately.
Best timed around physical stress
Take up to one hour before, or during, periods of physical stress. For occasional use only.
What the research says about L-Tyrosine
Educational summaries of published research on L-Tyrosine generally; not product-specific claims. CanPrev L-Tyrosine's own label claim is the use authorized under NPN 80086832: helps to decrease cognitive fatigue due to physically stressful situations.
A landmark review established that brain catecholamine synthesis rises with tyrosine availability
Fernstrom's classic review showed that raising brain tyrosine levels accelerates the brain's synthesis of the catecholamines dopamine and norepinephrine, while competing amino acids reduce it - establishing tyrosine as the dietary precursor that supplies this pathway.
Foundational reviewA historical review traces how the enzyme that converts tyrosine into catecholamines was identified as rate-limiting
This 60-year retrospective describes how tyrosine hydroxylase, the enzyme that starts the conversion of tyrosine into dopamine and norepinephrine, was identified as the rate-limiting step in catecholamine formation, and how its activity depends on cofactors and regulatory feedback.
Historical reviewA 2025 international consensus guideline confirms tyrosine hydroxylase catalyses the rate-limiting step in dopamine biosynthesis
This guideline for tyrosine hydroxylase deficiency states that the enzyme tyrosine hydroxylase catalyses the rate-limiting step in dopamine biosynthesis, and that its deficiency leads to shortfalls in dopamine, norepinephrine, and epinephrine in the central nervous system - underscoring tyrosine's role as the starting material for these neurotransmitters.
Consensus guidelineA classic U.S. Army study found tyrosine reduced mood and performance impairments during combined cold and low-oxygen stress
In a double-blind, placebo-controlled crossover trial, healthy adults exposed to 4.5 hours of cold and low oxygen showed significantly fewer adverse mood changes and less performance impairment after tyrosine (100 mg/kg) than after placebo, in those who reacted most to the stressors.
Human RCTCold-water immersion impaired working memory, and tyrosine supplementation eased the decline
Volunteers who completed two 90-minute cold-water immersions made fewer correct responses on a working-memory test and reacted slower than in thermoneutral conditions - but after consuming tyrosine (300 mg/kg total), memory accuracy and processing speed returned closer to non-cold levels.
Human controlled trialTyrosine improved performance on stress-sensitive cognitive tasks during a noise stressor
Sixteen healthy adults exposed to 90 dB noise performed better on two highly stress-sensitive cognitive tasks one hour after taking tyrosine (100 mg/kg) than after placebo, with no adverse effects on mood.
Human RCTMilitary cadets given tyrosine performed better on memory and tracking tasks after a week of combat training
Twenty-one cadets undergoing a demanding combat training course who received a tyrosine-rich drink (2 g/day for 5 days) performed better on a memory task and a tracking task on day 6 than cadets given a carbohydrate-matched control drink, and also showed a reduction in systolic blood pressure.
Human RCTTyrosine eased the usual decline in psychomotor performance during a night of sustained wakefulness
During continuous overnight work involving one night of sleep loss, subjects given a split 150 mg/kg dose of tyrosine six hours in showed a significant easing of the usual performance decline and fewer vigilance lapses, an improvement that lasted about three hours; the authors also noted tyrosine was a relatively benign treatment at this dose.
Human RCTA rapid evidence assessment for the U.S. military found consistent cognitive benefit from tyrosine under stress
Reviewing 10 randomized and 4 controlled trials on tyrosine for mitigating stress, this evidence assessment found no confident recommendation could be made for physical performance under physical stress, but issued a weak recommendation in favor of tyrosine for cognitive performance under stress, since every study reviewed showed a positive cognitive effect.
Systematic evidence reviewTyrosine reduced task-switching costs, a marker of cognitive flexibility
In a double-blind, placebo-controlled crossover study, 22 healthy adults performing a task-switching test showed reduced switching costs after tyrosine compared to placebo, supporting the idea that tyrosine can replete dopamine-dependent cognitive resources needed for flexible thinking.
Human RCTTyrosine promoted convergent 'deep thinking' but not free-form brainstorming
Testing whether the food supplement L-Tyrosine affects creative thinking, this study found no effect on divergent ('brainstorming') thinking, but tyrosine did promote convergent thinking - the kind of creative problem-solving that requires more cognitive top-down control.
Human RCTA review concluded tyrosine effectively enhances cognition when neurotransmitter stores are temporarily depleted by stress
Reviewing the cognitive and behavioral tyrosine literature, the authors concluded tyrosine's benefit for clinical disorders or physical exercise appears limited, but tyrosine does effectively enhance cognitive performance in short-term stressful or cognitively demanding situations, when dopamine and/or norepinephrine are temporarily depleted.
Narrative reviewA cryo-EM structure captured thyroid hormone forming directly from paired tyrosine residues
Using cryo-electron microscopy, researchers captured the structure of native thyroglobulin - the thyroid gland's hormone-precursor protein - showing thyroid hormone forming at one of its predicted sites from a pair of iodinated tyrosine residues, directly visualizing tyrosine's role as the building block of thyroid hormone.
Structural biology studyResearch identified the precise chemical step by which paired tyrosine residues become thyroxine (T4)
Using an engineered minimal protein precursor, this study showed that thyroxine (T4) synthesis from paired tyrosine residues is favored by a nearby acidic residue that helps trigger the coupling reaction, refining understanding of exactly how tyrosine is converted into thyroid hormone within its parent protein.
Biochemical mechanism studyA 2026 review traces how tyrosine became the evolutionary and biochemical substrate for thyroid hormone
This review describes how thyroid hormone synthesis evolved around the enzymatic iodination of tyrosine residues on thyroglobulin, the protein that thyroid cells produce in large quantity specifically to store iodinated tyrosine as the raw material for thyroid hormone.
ReviewPKU treatment relies on tyrosine-enriched medical foods because the body can no longer make its own tyrosine from phenylalanine
This review of phenylketonuria (PKU) dietary treatment explains that because PKU blocks the conversion of phenylalanine into tyrosine, lifelong treatment restricts phenylalanine intake while supplementing with amino acid medical foods enriched in tyrosine and other nutrients to prevent deficits.
ReviewA patient registry tracked real-world use of tyrosine supplementation alongside standard PKU dietary management
This U.S. patient registry study of 219 people with PKU or hyperphenylalaninemia recorded the use of tyrosine supplementation as one of several real-world variables in dietary management, alongside adherence to the low-phenylalanine diet and blood phenylalanine control.
Registry studyA systematic review evaluated whether an alternative protein source could match standard tyrosine-supplemented formulas in PKU
This systematic review and meta-analysis of glycomacropeptide-based PKU formulas found no differences between glycomacropeptide-plus-amino-acids and standard free amino acid formulas (which supply tyrosine) for blood phenylalanine or tyrosine control, underscoring how central tyrosine supplementation is to standard PKU nutrition management.
Systematic review & meta-analysisTyrosine improved cycling endurance specifically under mental fatigue
Twelve recreational cyclists who first completed a 60-minute mentally fatiguing task cycled about 16% longer to exhaustion after taking tyrosine (300 mg/kg) than after placebo, with a slower rise in perceived exertion - a preliminary finding the authors say needs confirmation in larger samples.
Human RCT (preliminary)An honest null result: three tyrosine doses raised its brain-uptake ratio but did not change cycling performance in the heat
Testing low, medium and high tyrosine doses before cycling in 30 degrees C heat, this study found tyrosine reliably raised the plasma ratio that determines brain tyrosine uptake, but time-trial performance, core temperature and perceived exertion were unaffected at any dose.
Human RCTTyrosine ingestion raised plasma tyrosine substantially but did not improve a cycling time trial
In competitive cyclists, tyrosine ingestion (25 mg/kg) significantly raised plasma tyrosine levels several-fold, but did not shorten time to complete an endurance cycling time trial compared to placebo - carbohydrate, not tyrosine, was the factor that improved performance in this study.
Human RCTA classic pharmacokinetic study established that a single oral dose of L-Tyrosine reliably raises plasma tyrosine
This foundational study demonstrated that a single oral dose of L-Tyrosine produces a measurable, dose-related rise in plasma tyrosine in humans - the basic pharmacokinetic finding underlying every subsequent tyrosine-supplementation trial.
Human pharmacokinetic studyA 4-week tolerance trial of a related amino acid found high daily doses well tolerated, with plasma tyrosine rising safely
In a controlled trial of graded oral amino acid supplementation in 60 healthy adults, phenylalanine dosing raised plasma tyrosine concentrations at the highest dose tested (12 g/day) without any treatment-related adverse events, and the no-observed-adverse-effect level for these related amino acids was set at 12 g/day over 4 weeks.
Human tolerance trialA review describes how tyrosine competes with other large amino acids for transport into the brain
This review explains that tyrosine shares a common transport system across the blood-brain barrier with other large neutral amino acids (tryptophan, phenylalanine, valine, leucine, isoleucine), so the balance among these amino acids in the blood helps determine how much tyrosine reaches the brain.
ReviewFrequently asked questions
How do I take CanPrev L-Tyrosine?
Adults (19 years and older): take 1 scoop (5 g), 2 times per day. Mix well into 1 to 2 cups of liquid (water, juice, etc.) and consume immediately. Take up to one hour before, or during, periods of physical stress. For occasional use only, or as directed by a healthcare practitioner.
What's in each scoop?
Each scoop contains 5 g of L-Tyrosine, from a fermented, vegan source. There are no other medicinal ingredients and no non-medicinal ingredients listed on this product's label.
What is the licensed use of this product?
This product's Health Canada licence (NPN 80086832) authorizes it to help decrease cognitive fatigue due to physically stressful situations.
How many servings are in a bottle?
Each 220 g bottle provides 22 servings, based on the labeled dose of 1 scoop taken 2 times per day.
Can I take this if I'm pregnant or breastfeeding, or on a low-protein diet?
Consult a healthcare practitioner before use if you are pregnant, breastfeeding, or following a low-protein diet.
Is it vegan and allergen-friendly?
Yes - it is a vegan, fermented source of L-Tyrosine, free of gluten, dairy, soy, sugar, and artificial colours, flavours or preservatives, with no fillers or binders.
Is CanPrev L-Tyrosine made in Canada?
Yes. It is formulated and made in Canada by CanPrev Natural Health Products Ltd. (Brampton, ON) and licensed by Health Canada under NPN 80086832.
Is this the same as CanPrev's other products that mention L-Tyrosine?
No. CanPrev also includes L-Tyrosine as one of several active ingredients within different, separately licensed multi-ingredient formulas (such as its Thyroid Plus Women, Thyroid-Pro Formula, and Adrenal-Pro products). This powder's own licence (NPN 80086832) is for pure L-Tyrosine only, with no other medicinal ingredients.
Add CanPrev L-Tyrosine to your routine
Get CanPrev L-Tyrosine Vegan Amino Acid Powder on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80086832. Helps to decrease cognitive fatigue due to physically stressful situations. Research summaries on this page concern L-Tyrosine generally and are educational - they are not additional product-specific claims beyond this product's Health Canada-authorized use. Read and follow the label. Consult a health care practitioner before use if you are pregnant, breastfeeding, or following a low-protein diet. For occasional use only. Results may vary.
Important information
Safety Information
Cautions and Warnings: As with any natural health product, consult a healthcare practitioner before use of this product if you are pregnant, breastfeeding, or following a low-protein diet. Do not use if the safety seal is broken. Keep out of reach of children.
Indications
Recommended Use or Purpose: Helps to decrease cognitive fatigue due to physically stressful situations.
Ingredients
Medicinal Ingredients (per 1 scoop/5 g): L-Tyrosine (fermented, vegan source), 5 g. Non-medicinal Ingredients: None.
Directions
Recommended Dose (Adults 19 years and older): Take 1 scoop (5 g), 2 times per day, or as directed by a healthcare practitioner. Mix well into 1 to 2 cups of liquid (water, juice, etc.) and consume immediately. Take up to one hour before, or during, periods of physical stress. Recommended Duration of Use: For occasional use only.
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. This item is sold and shipped by Amazon.ca.