Astragalus 333 mg (Organic) Liquid Extract - 1 fl. oz.

Astragalus 333 mg (Organic) Liquid Extract - 1 fl. oz. - Image 1 of 0

Astragalus 333 mg (Organic) Liquid Extract - 1 fl. oz.

LifeSource Vitamins

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Supports vibrant immune health and white blood cell function*
Promotes respiratory wellness and clear breathing*
Supports daily vitality and energy levels*
Enhances antioxidant protection for cellular health*
Supports heart health and circulation*
Helps maintain immune function during chemotherapy*
Promotes liver health by supporting oxidative balance*
Supports spleen function and healthy digestion*
3rd-party lab tested for purity & potency

Product Code: ASTR003

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LifeSource Vitamins Astragalus Root — Organic Liquid Extract, 1 fl oz (30 ml) — Promotes Vibrant Immune Health*

Our organic Astragalus membranaceus liquid extract provides a fast-absorbing format traditionally used to support immune function, vitality, and everyday resilience.* Made from organically grown root (“Huang Chi”), herb strength ratio 1:3, and crafted in FDA-registered, GMP-certified facilities. 3rd-party lab tested for purity, potency & label accuracy.*

Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts in PubMed Central (PMC) when available. We also reference reviews from leading health organizations and top universities to keep guidance aligned with credible science.*

Clinically Studied Benefits (with research)

Enhances immune function* — Reviews describe modulation of T cells, macrophages, NK cells and cytokines (NIH/PMC — Zheng Y, 2020); (NIH/PubMed — Auyeung KK, 2016).
Respiratory wellness (evidence appraisal) — Cochrane-style review evaluated prevention of recurrent ARTIs and called for rigorous RCTs (NIH/PMC — Su G, 2016).
Antioxidant activity & cellular defense* — Constituents (polysaccharides, saponins, flavonoids) show antioxidant mechanisms across tissues (NIH/PubMed — Shahzad M, 2016); (NIH/PMC — Yao J, 2024).
Immune support signals in oncology (adjunct)* — Meta-analysis reports improvements in selected outcomes and immune indices with Astragalus as add-on care (NIH/PMC — Sheng X, 2025).
Liver protection (preclinical/translational) — Experimental work shows reduced oxidative stress and improved markers (NIH/PMC — Choi DJ, 2020).

Additional Studies Showing Promising Benefits*

Metabolic health* — Recent review summarizes Astragalus bioactives and signals for metabolic markers (NIH/PMC — Li S, 2025).
Healthy aging & telomeres* — Randomized, double-blind, placebo-controlled trial of an Astragalus-based supplement reported telomere benefits (NIH/PMC — de Jaeger C, 2024).
Gut–immune axis & immune pathways* — Reviews outline APS effects on innate/adaptive responses (Frontiers — Wang XY, 2022).

University / Academic Context*

Educational resources provide safety & usage context: NIH/NCCIH — Astragalus • NIH/LiverTox — Astragalus • WHO TCM terminology • Health Canada monograph.

Global Evidence & Authoritative Reviews*

National and global references (e.g., NIH/NCCIH and NIH/LiverTox) summarize Astragalus’ safety considerations and evidence landscape (links above).

We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, and Ohio State — to keep guidance aligned with credible science.*

Brief Benefit Bullets

Promotes vibrant immune health & balanced cytokine activity*
Supports respiratory wellness during seasonal challenges*
Fast-absorbing liquid for everyday vitality*
Antioxidant support for cellular defense*
Traditional TCM spleen/Qi support context*
3rd-party lab tested for purity & potency

See All LifeSource Vitamins Immune Support Products

Suggested Use

See product label for full instructions, or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications (especially immunosuppressants), or have a medical condition, consult your physician.*

Product Specifications

• Bottle Size — 1 fl oz (30 ml)
• Serving Size — 30 drops (1 ml) (label-verified)
• Servings Per Container — 30 (label-verified)
• Herb Weight Equivalence — 333 mg per serving (label-verified)
• Herb Strength Ratio — 1:3 (label-verified)
• Active — Organic Astragalus Root (“Huang Chi”) (Astragalus membranaceus) (label-verified)
• Other Ingredients — Deionized water; grain alcohol 27–37% by volume(label-verified)
• Form — Alcohol-based herbal liquid extract; Non-GMO*
• Quality — Third-party tested for identity, potency & purity

Key Ingredient

Organic Astragalus Root (Astragalus membranaceus) — Source of polysaccharides (APS), astragalosides, and flavonoids that support immune function and antioxidant defenses* (NIH/PMC — Zheng Y, 2020).

3rd-Party Testing: Every batch is independently verified for identity, purity, and potency. Click here to see our 3rd-party 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.

Astragalus Root Liquid Extract — 1 fl oz (30 ml), herb strength 1:3, 333 mg herb equivalence/serving; organic, NIH/PMC-referenced immune support. Clinically Studied Ingredients — NIH/PubMed!*