American Ginseng — 400 mg Capsules, 60 — Energy, Cognitive & Immune Support*
Clinically studied American Ginseng (Panax quinquefolius) helps support alert energy, working memory, and balanced stress without jitters. Each capsule delivers 400 mg of authentic American ginseng to complement focus, immune resilience, and healthy metabolic balance. Produced in FDA-registered, GMP-certified facilities.*
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 leading health organizations and top universities to keep our guidance aligned with credible science.*
Clinically Studied Benefits (with research)
• Working memory & cognitive performance* — In healthy young adults, standardized American ginseng improved working memory and calmness across several tasks (NIH/PubMed — Scholey, 2010).
• Attention & alertness* — An RCT using a patented American ginseng extract reported benefits to attention and alertness in healthy adults (NIH/PubMed — Bell, 2022).
• Post-meal glycemic support* — Multiple clinical trials show American ginseng can attenuate postprandial glucose excursions in people with and without type 2 diabetes (NIH/PubMed — Vuksan, 2000; NIH/PubMed — Vuksan, 2001).
• Fewer colds & shorter duration* — North American ginseng extract reduced the number and duration of upper-respiratory infections in randomized, double-blind trials (NIH/PubMed — Predy, 2005; NIH/PubMed — Predy, 2006).
Additional Studies Showing Promising Benefits*
• Episodic memory in older adults* — Signals for improved delayed episodic memory were observed in specific subgroups; larger confirmatory trials are needed (Frontiers — Lee, 2023).
• Fatigue & vitality* — Systematic review suggests ginseng may reduce fatigue in select populations; effects vary by extract and dose (NIH/PubMed — Arring, 2018).
• Stress-adaptation & antioxidant activity* — Reviews describe adaptogenic and antioxidant mechanisms that may underlie energy and cognitive findings (NIH/PubMed — Jung, 2017).
University Sources
• OSU — Linus Pauling Institute: botanical antioxidants & immune function overviews
• Harvard T.H. Chan School of Public Health: nutrition & glycemic health resources (Harvard).
Global Evidence & Authoritative Reviews
• Complementary health evidence summaries — NCCIH (NIH).
• Evidence syntheses & clinical reviews — Cochrane Library.
We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Brief Benefit Bullets
• Supports working memory, attention & mental energy*
• Helps maintain balanced, non-jittery energy*
• Clinically studied support for post-meal glycemic balance*
• Helps reduce number and duration of common colds*
• Adaptogenic support for stress resilience*
• 400 mg convenient once- or twice-daily use*
• 3rd-party lab tested for identity, purity & potency
Suggested Use
See product label for full instructions, or as directed by your healthcare professional. Not recommended during pregnancy. If nursing, taking medications, or managing a medical condition, consult your physician.*
Product Specifications
• Strength — 400 mg American Ginseng (Panax quinquefolius) per capsule
• Count — 60 capsules
• Form — Vegetarian capsule
• Quality — Produced in a GMP facility; Third-party tested for identity, purity & potency
Perfect For
• Adults seeking natural support for energy, focus, immune resilience & healthy post-meal glucose*
Key Ingredient
American Ginseng (Panax quinquefolius) — North American adaptogen standardized for ginsenosides; studied for cognitive performance, balanced energy, immune support, and glycemic modulation (NIH/PubMed — Scholey, 2010; NIH/PubMed — Vuksan, 2000).
3rd-Party Testing: Every batch is verified by independent labs for identity, potency, and purity. See our testing.
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.
American Ginseng 400 mg — alert energy, working memory, immune & glycemic support in a clean capsule. GMP-made, 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
