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Astragalus Extract 500 mg

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(6533 ratings)
Astragalus 500 mg
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Score81
A strong, clearly dosed astragalus root extract with polysaccharide context. Missing species and marker percentages are the main quality gaps.
How scoring works
Quantity:90 Capsule(s) • (90 servings)
Goals:
Immunity

Score 81

A strong, clearly dosed astragalus root extract with polysaccharide context. Missing species and marker percentages are the main quality gaps.
How scoring works
$9.90($0.11 per serving)
Pure Formulas
$ 10.11
Daily Vita
$ 9.90
iHerb
$ 10.40
Vitacost
$ 11.17
Amazon
$ 9.90
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Analysis

The capsule provides 500 mg of astragalus root extract, a substantial amount for a focused product. Polysaccharides are identified as relevant constituents, although no percentage standardization is given.

The single botanical offers a coherent approach to longer-term immune resilience. It does not cover the foundational nutrient pathways addressed by vitamin C, vitamin D, or zinc.

The product fits adults who want a meaningful astragalus extract without a proprietary blend. Users who require exact species or active-marker verification may want a more fully documented extract.

Who is it for
  • Adults seeking a substantial astragalus extract
  • People who prefer single-herb capsules
  • Users focused on longer-term immune resilience
Best for
  • Daily astragalus supplementation
  • Focused botanical immune support
  • Avoiding low-dose blend ingredients

Pros

  • Provides a full root-extract amount
  • Names polysaccharides
  • Simple single-active formula

Cons

  • Botanical species is not stated
  • Polysaccharide percentage is missing
  • Does not supply core immune nutrients

Warnings

  • Astragalus may interfere with immunosuppressant medicines by affecting immune activity.
  • People with autoimmune conditions should confirm suitability with their treating clinician.

Nutrient quality

83 Highest impact

The extract names a relevant active marker, though its concentration and botanical identity remain incomplete. The supplied amount supports practical use for focused use.

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Ingredient transparency

80 High impact

The main active amounts are clearly listed, making the core formula possible to assess. Intake directions, non-active ingredients, and key botanical-quality details are absent from the supplied data.

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Customer satisfaction

70 High impact

The supplied average is strong and the response volume is large. No detailed feedback is provided to assess recurring complaints or fit with the intended purpose.

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Value for money

92 Highest impact

Ingredient quality and serving efficiency support strong practical value. The formula compares favorably with many category alternatives.

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Report analysis

Goals

Immunity
Immunity
Impact
High effect
C+ Goal FitB+ Strength of SupportC- CoverageA+ Formula Quality

Astragalus root extract offers targeted botanical support for longer-term immune resilience. The full extract amount is meaningful and is disclosed outside a proprietary blend.

Polysaccharides are named but not standardized by percentage, and the Astragalus species is omitted. Evidence for astragalus is promising but less established than evidence for foundational vitamin C, vitamin D, or zinc.

Study evidence
Astragalus Supportive 16 studies

Ingredients

IngredientAmount per serving
Astragalus root extract (Polysaccharides)
 500 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Astragalus (Polysaccharides) · 500 mg OverallScore73
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The root extract supplies a full extract dose and identifies polysaccharides as the relevant form. Missing species, marker concentration, and purity certification keep the quality evidence incomplete. Excellent standardized value and exact dose disclosure make it the strongest fit among the provided options.

View ingredientView products
Loading alternative details
78 Performance

Astragalus

Herb Pharm
<p>Its label identifies an accepted astragalus species and the root source at 665 mg, making the botanical identity clearer. Compared with the original, that ingredient profile is better characterized or more closely aligned with immune support; no active-marker concentration is provided.</p>
77 Performance

Astragalus Root 2000 mg

Nature's Answer
<p>Its label identifies an accepted astragalus species and the root source at 2000 mg, making the botanical identity clearer. Compared with the original, that ingredient profile is better characterized or more closely aligned with immune support; no active-marker concentration is provided.</p>
77 Performance

Full Spectrum Astragalus Extract 500 mg

Planetary Herbals
<p>Its focused astragalus root extract keeps the formula closely aligned with the original product’s main ingredient. Compared with the original, that ingredient profile is better characterized or more closely aligned with immune support; the species and active-marker concentration remain unstated.</p>
74 Budget

Astragalus Root 470 mg

Swanson
<p>Its clearly quantified astragalus keeps the formula relevant to the original product’s main herbal purpose. Compared with the original, it lowers the serving cost while retaining relevant astragalus support, although the species, plant part, and active-marker concentration remain unclear.</p>
76 Budget

Astragalus 450 mg

Ron Teeguarden's Dragon Herbs
<p>Its focused astragalus root extract keeps the formula closely aligned with the original product’s main ingredient. It is not lower-cost than the original, but it is the closest remaining eligible fit for this category; the species and active-marker concentration remain unstated.</p>
78 Budget

Astragalus

Nature's Way
<p>Its astragalus root extract names astragalosides and is paired with additional whole astragalus, giving the formula a more clearly characterized herbal core. It is not lower-cost than the original, but it is the closest remaining eligible fit for this category; the label names the marker but does not state its concentration.</p>
74 Value

Astragalus 500 mg

Nature's Answer
<p>Its astragalus root extract names astragalosides and is paired with additional whole astragalus, giving the formula a more clearly characterized herbal core. Compared with the original, a somewhat higher serving cost and the disclosed ingredient profile create a useful quality-to-cost balance, although the label names the marker but does not state its concentration.</p>
76 Value

Astragalus 1000 mg

AN Amazing Nutrition Amazing Formulas
<p>Its focused astragalus extract preserves the original product’s main herbal purpose in a concise formula. Compared with the original, a lower serving cost and the disclosed ingredient profile create a useful quality-to-cost balance, although the species, plant part, and active-marker concentration remain unclear.</p>
75 Value

Astragalus 550 mg

Nutricost
<p>Its 550 mg astragalus root powder provides a simple, focused herbal option without unrelated active ingredients. Compared with the original, a lower serving cost and the disclosed ingredient profile create a useful quality-to-cost balance, although it is not an identified standardized extract, so active strength is uncertain.</p>
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. [Effect of intravenous drip infusion of cyclophosphamide with high-dose Astragalus injection in treating lupus nephritis].
    Su L; Mao JC; Gu JH · Zhong xi yi jie he xue bao = Journal of Chinese integrative medicine · 2008
    Randomized trial43 participantsImmunity forAstragalus
  2. [Effect of compound astragalus recipe on lymphocyte subset, immunoglobulin and complements in patients with myasthenia gravia].
    Niu GH; Sun X; Zhang CM · Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine · 2010
    Randomized trial60 participantsImmunity forAstragalus
  3. Oral Astragalus (Huang qi) for preventing frequent episodes of acute respiratory tract infection in children.
    Su G; Chen X; Liu Z; Yang L; Zhang L; Stålsby Lundborg C; Wen Z; Guo X; Qin X; Liang J; Liu X · The Cochrane database of systematic reviews · 2017
    Systematic reviewImmunity forAstragalus
  4. Astragalus polysaccharides combined with radiochemotherapy for cervical cancer: a systematic review and meta-analysis of randomized controlled studies.
    Sun T; Zhao R; Zhang Y; Li D; Shan X; Tang X; Zheng Y · Frontiers in pharmacology · 2025
    Meta-analysis776 participants9 studies pooledImmunity forAstragalus
  5. Astragalus mongholicus (Fisch.) Bge Improves Peripheral Treg Cell Immunity Imbalance in the Children With Viral Myocarditis by Reducing the Levels of miR-146b and miR-155.
    Zhang Z; Dai X; Qi J; Ao Y; Yang C; Li Y · Frontiers in pediatrics · 2020
    Randomized trial68 participantsImmunity forAstragalus
  6. [Clinical study on effect of Astragalus in efficacy enhancing and toxicity reducing of chemotherapy in patients of malignant tumor].
    Duan P; Wang ZM · Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine · 2003
    Randomized trial120 participantsImmunity forAstragalus
  7. [Modulatory effect of Astragalus membranaceus on Th1/Th2 cytokine in patients with herpes simplex keratitis].
    Mao SP; Cheng KL; Zhou YF · Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine · 2004
    Randomized trial168 participantsImmunity forAstragalus