LifeSource Vitamins Melatonin 5 mg — Veg Capsules — 60 Count — Supports Restful Sleep, Circadian Rhythm Alignment, and Stress Resilience
LifeSource Vitamins Melatonin 5 mg delivers a balanced, research-driven formula designed to support restful sleep, improve circadian rhythm alignment, and promote stress resilience. Each vegan capsule provides 5 mg of melatonin, produced in FDA-registered, GMP-certified facilities and supported by NIH-indexed human clinical studies. Our approach focuses on efficacy, safety, and transparency — ensuring every ingredient meets LifeSource’s uncompromising standards for quality and science.* Non-GMO, gluten-free, vegan.
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
✓ Melatonin reduces sleep-onset latency and modestly increases total sleep time — in primary sleep disorders (systematic review/meta-analysis).
NIH/PubMed — Ferracioli-Oda, 2013
✓ Exogenous melatonin improves sleep latency (~4 min), total sleep duration (~13 min) and efficiency (~2.2%) — vs placebo (meta-analysis).
NIH/PubMed — Brzezinski, 2005
✓ For delayed sleep–wake phase disorder, timed melatonin with light/schedule therapy advances circadian phase (~34 min) — and improves sleep timing (RCT).
NIH/PubMed — Sletten, 2018
✓ Melatonin is effective for jet lag — when crossing multiple time zones (Cochrane review).
NIH/PubMed — Herxheimer, 2002
✓ Melatonin supplementation improves sleep quality (PSQI) — across randomized trials (systematic review/meta-analysis).
NIH/PubMed — Fatemeh, 2022
✓ Evidence in older adults supports modest benefits for sleep parameters — (systematic review).
NIH/PubMed — Auld, 2017
✓ Low-dose melatonin improves circadian alignment — in shift workers (RCT).
NIH/PubMed — Chellappa, 2021
✓ Dose-response shows melatonin reduces sleep onset latency and increases total sleep time — peaking around 4 mg/day in relevant populations (systematic review/meta-analysis).
NIH/PubMed — Cruz-Sanabria, 2024
✓ Exogenous melatonin favors improvements in sleep quality domains — across systematic reviews and meta-analyses.
NIH/PubMed — Iyer, 2025
✓ Melatonin improves sleep quality and reduces insomnia symptoms — in adults with sleep disturbances (systematic review/meta-analysis).
NIH/PubMed — Yousef, 2026
✓ Low-dose exogenous melatonin advances circadian phase — irrespective of measured or estimated dim light melatonin onset time, supporting circadian alignment (RCT).
NIH/PubMed — Swanson, 2024
Additional / Promising Evidence
✓ Adjunct circadian support in shift-work contexts shows improvements in circadian alignment — and related outcomes.
NIH/PubMed — Chellappa, 2021
✓ Melatonin may enhance mitochondrial function — for better recovery from sleep debt.
NIH/PubMed — Grandner, 2021
✓ Low-dose melatonin shows promise for adolescent sleep onset — in neurodevelopmental disorders.
NIH/PubMed — Zhang, 2020
University-Led & Academic Studies
✓ Harvard Medical School education materials note timing-dependent effects of melatonin — on circadian phase.
NIH/PubMed — Various, Ongoing
✓ Johns Hopkins clinician resources discuss low-dose melatonin — for sleep-onset support.
NIH/PubMed — Various, Ongoing
✓ Oregon State University (Linus Pauling Institute) monographs describe roles in circadian regulation — and antioxidant biology.
NIH/ODS — Linus Pauling Institute, Various
Global Evidence & Reviews
✓ Clinical practice guideline for intrinsic circadian rhythm sleep–wake disorders recommends timed melatonin — for DSWPD and related conditions.
NIH/PubMed — Auger, 2015
✓ Narrative/umbrella reviews summarize melatonin’s utility alongside light/schedule therapy — for circadian disorders.
NIH/PMC — Sun, 2022
✓ Jet-lag effectiveness supported by Cochrane review — (see Clinically Studied Benefits section above).
NIH/PubMed — Herxheimer, 2002
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
- Melatonin – 5 mg
- Microcrystalline Cellulose
- Vegetable Cellulose (capsule)
- Silica, Vegetable Magnesium Stearate
Brief Benefit Bullets
- Promotes restful sleep onset
- Aligns natural circadian rhythm
- Supports stress recovery and resilience
- Clean vegan capsule, easy to swallow
Suggested Use
See product label for directions, or use as directed by your healthcare professional. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
- Serving Size: 1 Vegan Capsule | Servings Per Container: 60
- Form: Vegan Capsules | Count: 60
- Free From: Gluten, dairy, soy, GMOs, artificial colors/flavors
- Made in FDA-Registered, GMP-Certified U.S. Facility
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.
Melatonin 5 mg 60 Vegan Capsules — supports restful sleep, circadian rhythm, stress resilience. 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
