
Thorne Research
Thorne Research 5-Hydroxytryptophan (90 Capsules)
Increases serotonin levels for better sleep and mood balance
Why Choose This Product
BETTER SLEEP
Naturally increases serotonin levels to support deeper, more restful sleep patterns.
MOOD BALANCE
Enhances serotonin production to help maintain emotional balance and reduce stress.
SUGAR CONTROL
Helps decrease sugar cravings by supporting healthy serotonin levels.
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How It Works
How It Works
5-HTP converts directly to serotonin in your brain, bypassing the competition from dietary proteins that limits tryptophan effectiveness. The added pyridoxal 5'-phosphate (active B6) acts as the essential cofactor your body needs for this conversion to happen efficiently.
Who It's For
Adults struggling with sleep quality, stress management, or sugar cravings who want a research-backed approach. People who've tried basic tryptophan supplements without success will appreciate the superior conversion pathway.
Who It's Not For
Not suitable if you're taking antidepressant medications or have a history of serotonin syndrome. Consult your healthcare practitioner before use.
About This Product
What It Does
This 5-HTP formula increases serotonin levels to support better sleep, balanced mood, and reduced sugar cravings. Unlike basic tryptophan that competes with other amino acids for absorption, 5-HTP converts directly to serotonin where you need it most.
Why It Works
- DIRECT CONVERSION: 5-HTP bypasses dietary protein competition and converts straight to serotonin in your brain.
- ACTIVE B6 INCLUDED: Contains pyridoxal 5'-phosphate, the bioactive form of B6 that your body actually uses for serotonin synthesis.
- FLEXIBLE TIMING: Can be taken with meals without amino acid interference, unlike tryptophan supplements.
What's Inside
Each capsule delivers 50mg of 5-HTP plus 3.4mg of pyridoxal 5'-phosphate in a clean formula. Made without flowing agents that can reduce bioavailability.
Why we carry it: Thorne's inclusion of active B6 cofactor and commitment to bioavailable formulations makes this more effective than standard 5-HTP products.
How to Take
Full Ingredients
5-Hydroxytryptophan 50 mg.
Customer Reviews
5 reviews
Questions & Answers
Research & Science
Explore the dropdown below to view peer-reviewed literature related to Thorne Research 5-Hydroxytryptophan (90 Capsules)

