5-HTP
5-HTP scores 90/100 (A grade). Strengths: 1 Grade A, 1 Grade B ingredients.
Score Breakdown
Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| 5-Hydroxytryptophan | 100 mg |
| Vitamin B6 (as Pyridoxal 5'-Phosphate) | 6.8 mg |
Certifications & Testing
Other Ingredients
Hypromellose (derived from cellulose) capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide
Recommended Use
Take 1-2 capsules three times daily or as recommended by your health-care practitioner.
Warnings
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY WARNING If pregnant or nursing, do not use this product. INTERACTIONS 5-HTP should be used with caution in an individual currently being treated with an SSRI, MAO inhibitor, or other antidepressant medication.
Frequently Asked Questions
What is Thorne 5-HTP's Formulate score?
Thorne 5-HTP scores 90 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
What's in Thorne 5-HTP?
Each serving contains 5-Hydroxytryptophan (100 mg), Vitamin B6 (as Pyridoxal 5'-Phosphate) (6.8 mg). Serving size: 2 Capsules. 45 servings per container.
How do I take 5-htp?
Take 1-2 capsules three times daily or as recommended by your health-care practitioner.
Is Thorne 5-HTP third-party tested?
Thorne lists the following certifications and testing for this product: NSF Certified, Gluten Free, Dairy Free, Soy Free, Thorne Verified, Natural Flavors, Natural Colors, GMP Certified.
Related Supplements
Track 5-htp in your stack
The Formulate desktop app lets you build a personalized supplement stack, flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.