Merchient’s ingredient library

What can you say about 5-HTP in your ads and on your site?

The library supports 2 wordings for 5-HTP; the strongest is “Helps promote a healthy mood balance” (moderate, 150-300 mg a day). Avoid wording that names or implies a disease, a drug or a treatment, such as “Treats depression or anxiety”.

Also called: 5-Hydroxytryptophan, 5-Hydroxy-L-tryptophan, L-5-Hydroxytryptophan, L-5-HTP

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

What you can say.

Moderate evidenceWording 1

Claims Facts

“Helps promote a healthy mood balance.”

Daily dose150-300 mg a day
SupportHealth Canada lists it at 150-300 mg a day; no other listed source covers 5-HTP.
Dose detailsAdults 18 and older; take with food. Health Canada: start low and build up over 2 weeks to limit stomach upset, and use it for at least 2 weeks to see an effect.
Form5-HTP (L-5-hydroxytryptophan) from Griffonia seed or biosynthesis
SourceHealth Canada monograph: 5-HTP

Moderate evidenceWording 2

Claims Facts

“With a reduced-calorie diet and more physical activity, helps with weight management by reducing carbohydrate cravings.”

Daily dose750-900 mg a day
SupportHealth Canada lists it at 750-900 mg a day with diet and exercise; no other listed source covers it.
Dose detailsAdults 18 and older; at most 300 mg per dose, taken 30 minutes before meals. Health Canada asks for a practitioner’s advice beyond 12 weeks for products giving over 600 mg a day, and says not to use it in pregnancy.
Form5-HTP (L-5-hydroxytryptophan) from Griffonia seed or biosynthesis
SourceHealth Canada monograph: 5-HTP

How strong the evidence is

Strong evidence
At least two listed sources support it independently at a comparable dose and form, and none disagrees.
Moderate evidence
One listed source supports it as an evidence-based use at that dose, and no listed source disagrees.
Limited evidence
The only support is traditional use, the sources disagree, or the source itself calls the evidence weak.

Wordings to avoid

What to leave out.

Claims Facts

Ingredient: 5-HTP

Wording to avoidReason
“Treats depression or anxiety”Names mental health disorders. Health Canada asks people with a psychological disorder such as anxiety or depression to consult a practitioner before use.Disease
“A natural antidepressant, or works like Prozac or an SSRI”Compares the product to a drug class. FDA’s 2000 rule (page 1027) cites ‘Herbal Prozac’ as wording that ties a product to an approved drug.Drug
“Treats insomnia or sleep disturbances”Names a sleep disorder. FDA’s 2000 rule (page 1031) reads sleep wording as disease wording unless it is limited to occasional sleeplessness.Disease
“Prevents migraines, or relieves fibromyalgia”Names diseases. Health Canada lists both uses, but they are condition uses (see notes).Disease
“Treats obesity”FDA’s 2000 rule (page 1026) counts obesity as a disease; the supported wording is weight management with diet and exercise.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.

Check the claims on your own site. Free.

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.

Or write to hello@merchient.com