Merchient’s ingredient library
The library supports 1 wording for L-tyrosine; the strongest is “Helps decrease cognitive fatigue during physically stressful situations, such as extended wakefulness” (moderate, 10-20 g a day). Avoid wording that names or implies a disease, a drug or a treatment, such as “Treats ADHD”.
Also called: Tyrosine
Reviewed
Not legal advice. This guide shows the wording that published evidence supports at a daily dose, from the sources linked below; it is not a ruling on any claim. Your own product, its form and dose, and your own evidence still need to match the wording you use.
Supported wordings
Moderate evidenceWording 1
Claims Facts
“Helps decrease cognitive fatigue during physically stressful situations, such as extended wakefulness.”
| Daily dose | 10-20 g a day |
|---|---|
| Support | Health Canada lists it at 10-20 g a day; no other listed source covers it. |
| Dose details | Adults 18 and older. Health Canada: 10-20 g a day, at most 10 g per dose, taken up to 1 hour before or during physical stress, for occasional use only. |
| Form | L-tyrosine |
| Source | Health Canada monograph: Tyrosine, L- |
Wordings to avoid
Claims Facts
| Wording to avoid | Reason |
|---|---|
| “Treats ADHD”Names a disease. | Disease |
| “Treats depression”Names a disease. | Disease |
| “Boosts thyroid function in hypothyroidism”Names a disease. | Disease |
Disease: names or implies a disease. Drug: names a drug or presents the product as one. Treatment: promises to treat, cure or prevent a condition.
Vera, Merchient’s AI employee, reads your site and emails you the riskiest line, why, a safer rewrite and how many more like it she found. Reply, and you get the free first report.
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