Holy Basil (Tulsi) — 450 mg, Veggie Caps, 60 Count — Stress & Mood Support, Healthy Immune Response*
LifeSource Vitamins Holy Basil combines organic tulsi leaf with a standardized leaf extract (2% ursolic acid) to support a healthy stress response, calm mood, and balanced immune function*. As a classic adaptogen, tulsi’s polyphenols help modulate stress pathways and antioxidant defenses for everyday resilience*. Produced in FDA-registered, GMP-certified facilities and verified by independent 3rd-party laboratories 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 healthy stress response — Tulsi extract improved overall stress scores versus placebo in adults over 6 weeks. NIH/PMC — Singh, 2009
✓ Promotes mood balance — Tulsi leaf extract supported improvements in stress, depression, and attention over 60 days. NIH/PubMed — Bhattacharyya, 2008
✓ Supports immune modulation — Double-blind RCT showed changes in cytokines and NK cells indicating balanced immune activity. NIH/PubMed — Mondal, 2011
✓ Provides antioxidant support — Human evidence synthesis reports favorable oxidative-stress markers across tulsi trials. NIH/PubMed — Cohen, 2014
✓ Helps maintain stress resilience — Tulsi supplementation associated with better adaptation to everyday stressors in clinical settings. NIH/PMC — Singh, 2009
✓ Supports calm mood and attention — Improvements noted in mood-related parameters and cognitive attention with tulsi use. NIH/PubMed — Bhattacharyya, 2008
✓ Contributes to balanced immune function — Immunomodulatory effects observed through cytokine balance in human trials. NIH/PubMed — Mondal, 2011
✓ Supports antioxidant defenses — Tulsi linked to reduced oxidative stress markers in human studies. NIH/PubMed — Cohen, 2014
✓ Helps with perceived stress levels — Placebo-controlled study reported reduced stress symptoms after tulsi administration. NIH/PMC — Singh, 2009
✓ Promotes overall resilience to stress — Adaptogenic properties supported by human clinical evidence on stress pathways. NIH/PubMed — Bhattacharyya, 2008
Additional / Promising Evidence
✓ May enhance stress resilience — Clinical use suggested benefits for stress adaptation and attention. NIH/PubMed — Bhattacharyya, 2008
✓ May support immune balance — RCT data indicate immunomodulatory effects consistent with balanced responses. NIH/PubMed — Mondal, 2011
✓ May aid antioxidant defenses — Review of human tulsi studies reports favorable oxidative-stress outcomes. NIH/PubMed — Cohen, 2014
✓ May help with perceived stress — Six-week placebo-controlled study reported improved stress-related symptoms. NIH/PMC — Singh, 2009
✓ May contribute to mood stability — Evidence from trials shows potential for mood and attention support. NIH/PubMed — Bhattacharyya, 2008
✓ May support healthy inflammatory response — Tulsi associated with modulation of stress-related inflammation markers. NIH/PubMed — Mondal, 2011
University-Led & Academic Studies
✓ Supports role of adaptogens in stress physiology — Academic interest including Harvard highlights tulsi as a traditional adaptogen for stress support. NIH-affiliated academic context
Global Evidence & Reviews
✓ Supports traditional herbal use for stress and wellness — Broad guidance provides contextual support for tulsi’s traditional role. World Health Organization review
✓ Supports tulsi in stress and immune health — Reviews confirm potential benefits from human studies on adaptogenic effects. NIH/PubMed — Cohen, 2014
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
- Organic Holy Basil Leaf (Ocimum sanctum / O. tenuiflorum) — Traditional adaptogen for calm mood & stress modulation.
- Holy Basil Leaf Extract (standardized to 2% ursolic acid) — Concentrated actives for antioxidant & immune support.
Brief Benefit Bullets
- Adaptogenic support for stress & calm mood*
- Helps maintain balanced immune function*
- Antioxidant support from tulsi polyphenols*
- Vegan, non-GMO, gluten-free — 3rd-party lab tested*
Suggested Use
Adults: Take 1 veggie cap daily with food, or as directed by your healthcare professional. If pregnant, nursing, taking medications, or managing a medical condition, consult your physician before use. Discontinue and consult a professional if adverse reactions occur. Keep out of reach of children*.
Product Specifications
- Form — Veggie Capsules
- Other Ingredient — Vegetable Cellulose (capsule)
- Free From — Non-GMO, gluten-free, vegan*
- Quality — Third-party tested for identity, potency & purity*
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.
LifeSource Vitamins Holy Basil (Tulsi) — Veggie caps. Supports stress response, mood balance, immune health, and antioxidants. Vegan, non-GMO & 3rd-party tested. Serving Size: 1 Veggie Cap, 60 servings. Clinically Studied Ingredients — NIH/PubMed!*
