Generated with AI from public data · Updated 12 November 2026
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Chaga Extract Powder

Pure Mushroom Powder

Chaga Extract Powder

Real Mushrooms

Species: Chaga

£29.49 one-off£26.54 subscription

0.0
/10
Well Documented

Good disclosure with minor gaps.

This score reflects disclosure completeness — not a verdict on product quality.

Scored: November 2026

Score breakdown

Score Breakdown

Ingredient Quality5.0

The product uses chaga sclerotium (Inonotus obliquus), which is classified as fruiting body and scores the maximum 4 points for source type. The beta-glucan percentage is disclosed as 8% via a third-party COA from SGS Canada, which falls below the 10% threshold and scores 0 points. The extraction method is not publicly disclosed, scoring 0. The serving size is 1,000mg, which meets the threshold for the top dose adequacy score of 2 points.

Mushroom source type4.0/4
Beta-glucan %0.0/4
Extraction method0.0/2
Dose adequacy2.0/2
Transparency8.9

The brand discloses source type clearly, country of origin (China), and a full-panel COA from SGS Canada covering beta-glucans, heavy metals, and microbial contamination. The beta-glucan percentage of 8% is verified by that third-party COA, scoring 2 points for beta-glucan disclosure. The extraction method is not publicly disclosed, which costs 1 point on the extraction sub-score. No transparency penalty applies, as fewer than three core fields are missing.

Certificate of Analysis3.0/3
Beta-glucan disclosed2.0/2
Source stated2.0/2
Extraction stated0.0/1
Origin stated1.0/1
Value4.8

The beta-glucan percentage is publicly disclosed at 8%, allowing the platform to calculate 80mg of beta-glucans per 1,000mg serving. At £0.4915 per serving, the cost per 100mg beta-glucan is £0.6144, which falls in the £0.41–£0.75 average tier. The value score of 4.77 reflects this mid-tier position.

Trust8.0

The product has a Trustpilot rating of 4.5 stars from 55 reviews, which scores 3 points (high rating but fewer than 500 reviews). Third-party testing is confirmed with a full-panel COA publicly associated with the product, scoring 3 points. Organic certification is held under both USDA Organic and Quality Assurance International, scoring the maximum 2 points.

Trustpilot score3.0/5
Third-party testing3.0/3
Organic certification2.0/2
Consumer Experience9.0

A subscription is available with no lock-in and a pause or cancel anytime policy, scoring 4 points. The return policy is 365 days, well above the 30-day threshold, scoring 3 points. The brand is based in Canada and ships to the UK, scoring 2 points for international shipping to the UK.

Subscription flexibility4.0/4
Return policy3.0/3
UK availability2.0/3
Overall6.6/10

By dimension

Ingredient Quality35%
5.0

Standardisation, extraction method, form specificity

Transparency30%
8.9

Third-party testing, CoA availability, label accuracy

Value20%
4.8

Price per active dose relative to category

Trust10%
8.0

Accreditations, regulatory compliance, brand history

Consumer Experience5%
9.0

Return policy, customer support availability

Key facts

Publicly available data

Mushroom source
fruiting body
Extraction method
unspecified
Beta-glucan %
8%
Total mushroom/serving
1000mg
COA available
Yes
Organic certified
Yes
Caffeine per serving
None
Trustpilot
4.5★ (55 reviews)

Score reasoning

Ingredient Quality

The product uses chaga sclerotium (Inonotus obliquus), which is classified as fruiting body and scores the maximum 4 points for source type. The beta-glucan percentage is disclosed as 8% via a third-party COA from SGS Canada, which falls below the 10% threshold and scores 0 points. The extraction method is not publicly disclosed, scoring 0. The serving size is 1,000mg, which meets the threshold for the top dose adequacy score of 2 points.

Transparency

The brand discloses source type clearly, country of origin (China), and a full-panel COA from SGS Canada covering beta-glucans, heavy metals, and microbial contamination. The beta-glucan percentage of 8% is verified by that third-party COA, scoring 2 points for beta-glucan disclosure. The extraction method is not publicly disclosed, which costs 1 point on the extraction sub-score. No transparency penalty applies, as fewer than three core fields are missing.

Value

The beta-glucan percentage is publicly disclosed at 8%, allowing the platform to calculate 80mg of beta-glucans per 1,000mg serving. At £0.4915 per serving, the cost per 100mg beta-glucan is £0.6144, which falls in the £0.41–£0.75 average tier. The value score of 4.77 reflects this mid-tier position.

Trust

The product has a Trustpilot rating of 4.5 stars from 55 reviews, which scores 3 points (high rating but fewer than 500 reviews). Third-party testing is confirmed with a full-panel COA publicly associated with the product, scoring 3 points. Organic certification is held under both USDA Organic and Quality Assurance International, scoring the maximum 2 points.

Consumer Experience

A subscription is available with no lock-in and a pause or cancel anytime policy, scoring 4 points. The return policy is 365 days, well above the 30-day threshold, scoring 3 points. The brand is based in Canada and ships to the UK, scoring 2 points for international shipping to the UK.

Not publicly disclosed

  • Extraction method
  • Beta-glucan percentage

How Real Mushrooms could improve this score

Path to improvement

+1.4 points to reach Fully Verified

+1.4

pts needed

  • 1

    Disclose the extraction method (for example, hot water extraction) on the product page — this would add 1 point to the extraction method sub-score and improve the ingredient quality score.

  • 2

    Publish a beta-glucan percentage at or above 10% as verified by a third-party COA — this would add between 1 and 4 points to the beta-glucan percentage sub-score, meaningfully improving the ingredient quality score.

  • 3

    Make the SGS Canada COA directly accessible via a public URL on the product page — this would increase confidence in the existing full-panel COA disclosure.

Actions that would raise this brand's disclosure score. See methodology for full scoring rules.

Chaga Extract Powder: questions answered

What is the Cogniscore rating for Chaga Extract Powder?+
Chaga Extract Powder by Real Mushrooms has a Cogniscore disclosure rating of 6.62/10 (Well Documented). This score reflects how completely the brand publicly discloses its ingredient sourcing, beta-glucan content, extraction method, dose adequacy, and third-party testing results. It is not a verdict on product quality or safety.
How is the Chaga Extract Powder score calculated?+
Cogniscore rates supplements across five dimensions: ingredient quality (35%), transparency (30%), value for money (20%), trust and third-party testing (10%), and consumer experience (5%). Every score comes from publicly available information, applying the rules in the published methodology. A score measures how much a brand discloses, not whether a product works.
What mushrooms are in Chaga Extract Powder?+
Chaga Extract Powder contains the following mushroom species: Chaga. Cogniscore evaluates whether each species uses fruiting body or mycelium, the extraction method, and whether beta-glucan content is independently verified by a third-party Certificate of Analysis.

Compare with another brand

This platform is independent and is not affiliated with, endorsed by, or sponsored by any brand listed. Scores reflect publicly disclosed information — not product quality, safety, or efficacy. Read the full methodology →

Information on this platform relates to nutritional composition and public disclosure practices only. It is not medical advice. No claims are made about the therapeutic efficacy, safety, or suitability of any product. Always consult a qualified healthcare professional before taking any supplement.