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Astragalus 450 mg

Ron Teeguarden's Dragon Herbs
4.7
★ ★ ★ ★ ★
(256 ratings)
Astragalus 1350 mg
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Score76
A substantial, focused astragalus root extract with a clearly stated amount. Missing concentration markers and source details make its true potency harder to verify.
How scoring works
Quantity:100 Capsule(s) • (33 servings)
Goals:
Immunity

Score 76

A substantial, focused astragalus root extract with a clearly stated amount. Missing concentration markers and source details make its true potency harder to verify.
How scoring works
$25.65($0.77 per serving)
iHerb
$ 27.00
Pure Formulas
$ 25.65
iHerb
$ 27.00
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Analysis

The large amount of astragalus root extract is the main strength and makes the product relevant for focused botanical immune support. Its simple design avoids diluting the formula with unrelated ingredients.

The label does not identify the species, extraction ratio, or active-marker concentration. A high extract weight cannot establish potency without those details, and the serving cost is not especially low.

It may suit users who prioritize a substantial root-extract amount over broad immune coverage. Anyone using immune-suppressing medication or receiving transplant care should avoid unsupervised use.

Who is it for
  • Adults seeking a substantial astragalus extract
  • People who prefer focused botanical formulas
  • Users comfortable with a multi-capsule serving
Best for
  • High-weight root extract
  • Single-botanical immune support
  • Users avoiding crowded blends

Pros

  • Substantial root-extract amount
  • Focused formula
  • Exact botanical weight is disclosed

Cons

  • No extract ratio or active markers
  • Species is not identified
  • Serving cost is relatively high

Warnings

  • Astragalus may oppose immunosuppressive medicines and transplant regimens
  • People treated for autoimmune conditions should confirm suitability with their prescriber
  • Stop use if the botanical causes rash, digestive upset, or another sensitivity reaction

Nutrient quality

84 Highest impact

A substantial root-extract amount supports a strong targeted dose. Missing extraction and marker details keep active potency uncertain.

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Ingredient transparency

74 High impact

Active amounts are clearly listed and no proprietary blend hides the supplied doses. Missing daily directions, excipients, and some form or potency details keep disclosure incomplete.

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Customer satisfaction

67 High impact

The supplied average is very strong and supported by a meaningful review base. Specific review comments were not provided, so repeated complaints and purpose-specific experiences cannot be assessed.

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Value for money

78 High impact

A substantial root-extract serving provides meaningful formula value. Higher cost and incomplete potency detail limit competitiveness.

.
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Goals

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

A substantial astragalus extract amount offers focused botanical immune support. The simple formula avoids a kitchen-sink blend.

Missing species, extraction ratio, and active-marker details limit quality verification. People taking immunosuppressive medicines should avoid unsupervised astragalus use because its immune-stimulating effects may oppose treatment.

Study evidence
Astragalus Supportive 16 studies

Ingredients

IngredientAmount per serving
Astragalus Root Extract, Powder
1350 mg
Gluten Free Adults 18–50
Report overview
Astragalus · 1350 mg OverallScore66
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB+ Value

The substantial root-extract dose provides practical potency, but the label does not disclose a species, extract ratio, or active-marker standardization. The exact astragalus amount is clear, while organic status and the full excipient profile remain uncertain. Cost efficiency is favorable for the amount supplied.

View ingredientView products
Loading alternative details
81 Performance

Astragalus Extract 500 mg

NOW
<p>Its 500 mg astragalus root extract identifies polysaccharides, making the main ingredient easier to assess than an uncharacterized herb amount. 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>
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>
75 Budget

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, it lowers the serving cost while retaining relevant astragalus support, although it is not an identified standardized extract, so active strength is uncertain.</p>
78 Budget

Astragalus

Paradise
<p>Its focused astragalus root extract keeps the formula closely aligned with the original product’s main ingredient. Compared with the original, it lowers the serving cost while retaining relevant astragalus support, although 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. Compared with the original, it lowers the serving cost while retaining relevant astragalus support, although the label names the marker but does not state its concentration.</p>
77 Value

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, a lower serving cost and the disclosed ingredient profile create a useful quality-to-cost balance, although the species and active-marker concentration remain unstated.</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 lower 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>
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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