5-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-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
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 our guidance aligned with credible, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Supports mood balance — 5-HTP has been studied for effects on mood ratings in adults.
NIH/PubMed — Turner EH, 2006
✓ Promotes restful sleep — 5-HTP has been evaluated for sleep onset and sleep quality outcomes.
NIH/PubMed — Soulairac A, 2004
✓ Helps manage everyday stress — Trials report favorable changes on stress/anxiety scales with 5-HTP.
NIH/PubMed — Jangid P, 2013
Additional / Promising Evidence
✓ Appetite regulation — 5-HTP has been investigated for supporting calorie control in diet programs.
NIH/PubMed — Ceci F, 1992
University-Led & Academic Studies
✓ Supports mood balance — 5-HTP explores mood effects (academic research).
NIH/PubMed — Turner EH, 2006
✓ Promotes restful sleep — 5-HTP evaluated for sleep onset and quality (university trials).
NIH/PubMed — Soulairac A, 2004
✓ Helps manage everyday stress — Serotonergic support shows favorable changes on stress scales (academic studies).
NIH/PubMed — Jangid P, 2013
Global Evidence & Reviews
✓ Supports mood balance & restful sleep — 5-HTP shows promise for mood and sleep via serotonin pathways in evidence reviews.
Review Evidence
✓ Promotes relaxation & stress relief — 5-HTP aids mood and satiety in clinical overviews.
NIH/PubMed — Ceci F, 1992
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align 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!*
