5-HTP — LifeSource Vitamins5-HTP — Mood, Sleep & Stress Support*
Feel more balanced by day and sleep more soundly at night — LifeSource Vitamins 5-HTP supports healthy serotonin pathways that steady mood, ease stress, and promote natural sleep cycles.* Our 5-HTP, derived from Griffonia simplicifolia, feeds the body’s serotonin system to encourage calm focus, smooth stress response, and deeper, more restorative sleep — without stimulants or melatonin.* Better evenings, better mornings — 5-HTP helps you unwind at night, wake refreshed, and stay emotionally steady through the day by supporting healthy serotonin production.* Crafted in FDA-registered, GMP-certified facilities; every batch is independently 3rd-party tested for identity, purity, and potency.
Research Promise. At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep guidance aligned with credible science*.
Clinically Studied Benefits (Human Evidence)
Additional / Promising Evidence
University / Academic Context
- Academic reviews summarize the role of serotonin precursors like 5-HTP in mood and sleep physiology (NIH-indexed sources referenced).
Global Evidence & Authoritative Reviews
- Major evidence reviews discuss potential benefits of 5-HTP for mood and sleep while recommending medical guidance and quality sourcing.
Institutional Monitoring. We monitor research from leading institutions — Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, MIT, University of Florida, Oregon State (Linus Pauling Istitute), Boston University, Cornell, Columbia, Ohio State — to keep our guidance aligned with credible science*.
Key Ingredients
Brief Benefit Bullets
- Supports balanced mood and emotional well-being*
- Promotes restful sleep and healthy sleep patterns*
- Helps manage everyday stress and appetite regulation*
- Vegan, non-GMO; every batch 3rd-party tested*
Suggested Use
Use as directed on the product label. If pregnant/nursing, taking medications (especially SSRIs, MAOIs or other serotonergic drugs), allergic, or if you have a medical condition, consult your physician. Discontinue use and seek medical advice if adverse reactions occur. Keep out of reach of children.*
Product Specifications
- Form — Vegetarian capsules
- Quality — Vegan, non-GMO; 3rd-party tested*
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements.
LifeSource Vitamins 5-HTP — Supports mood balance, restful sleep and stress resilience. Vegan, non-GMO & 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
