Generated with AI from public data · Updated 11 November 2026
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DIRTEA Chai

Adaptogen Blend

DIRTEA Chai

DIRTEA

Species: Lion's Mane, Tremella, Reishi

£43.00 one-off£30.10 subscription

0.0
/10
Fully Verified

Brand discloses and independently verifies its key claims.

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

Scored: November 2026

Score breakdown

Score Breakdown

Ingredient Quality10.0

The product uses fruiting body material across all three species (Lion's Mane, Tremella, and Reishi), scoring the maximum 4 points for source type. The brand states a beta-glucan percentage of 40%, which meets the highest scoring threshold, and discloses dual extraction, which is particularly relevant for Reishi given its triterpene content. Total mushroom extract per serving is 2,400mg, well above the 1,000mg threshold for a full dose adequacy score.

Mushroom source type4.0/4
Beta-glucan %4.0/4
Extraction method2.0/2
Dose adequacy2.0/2
Transparency5.6

The brand discloses source type, extraction method, country of origin (China), and a beta-glucan percentage of 40%, though this figure is brand-stated rather than third-party verified. No COA is publicly available, which limits independent verification of the beta-glucan claim and results in a score of 0 for that sub-dimension. The brand states third-party testing has taken place but does not publish a COA, so score_third_party_testing is 1. No transparency penalty applies as fewer than three core fields are missing.

Certificate of Analysis0.0/3
Beta-glucan disclosed1.0/2
Source stated2.0/2
Extraction stated1.0/1
Origin stated1.0/1
Value9.5

The platform calculates beta-glucans per serving at 960mg (2,400mg × 40%), based on the brand-stated beta-glucan percentage. Using the subscription price of £30.10 for 30 servings, the price per serving is approximately £1.00, giving a cost per 100mg beta-glucan of approximately £0.10. This places the product in the exceptional value tier, returning a value score of 9.48.

Trust8.0

The brand holds a Trustpilot score of 4.6 from 3,320 reviews, meeting the threshold of ≥4.5 stars and ≥500 reviews for the maximum 5 points. The brand states third-party testing is conducted but does not publish a COA, scoring 1 point for third-party testing. Organic certification is confirmed by the Organic Food Federation, a named certification body, scoring 2 points.

Trustpilot score5.0/5
Third-party testing1.0/3
Organic certification2.0/2
Consumer Experience10.0

The brand offers a subscription with no lock-in and an explicit cancel-or-skip-anytime policy, scoring the maximum 4 points for subscription flexibility. The subscription saving is 30%, well above the 15% threshold used to favour subscription pricing in value calculations. A 30-day money-back guarantee is stated, scoring 3 points, and the brand is UK-based and ships to the UK, scoring 3 points for UK availability.

Subscription flexibility4.0/4
Return policy3.0/3
UK availability3.0/3
Overall8.4/10

By dimension

Ingredient Quality35%
10.0

Standardisation, extraction method, form specificity

Transparency30%
5.6

Third-party testing, CoA availability, label accuracy

Value20%
9.5

Price per active dose relative to category

Trust10%
8.0

Accreditations, regulatory compliance, brand history

Consumer Experience5%
10.0

Return policy, customer support availability

Key facts

Publicly available data

Mushroom source
fruiting body
Extraction method
dual extract
Beta-glucan %
40%
Total mushroom/serving
2400mg
COA available
No
Organic certified
Yes
Caffeine per serving
Not publicly disclosed
Trustpilot
4.6★ (3,320 reviews)

Score reasoning

Ingredient Quality

The product uses fruiting body material across all three species (Lion's Mane, Tremella, and Reishi), scoring the maximum 4 points for source type. The brand states a beta-glucan percentage of 40%, which meets the highest scoring threshold, and discloses dual extraction, which is particularly relevant for Reishi given its triterpene content. Total mushroom extract per serving is 2,400mg, well above the 1,000mg threshold for a full dose adequacy score.

Transparency

The brand discloses source type, extraction method, country of origin (China), and a beta-glucan percentage of 40%, though this figure is brand-stated rather than third-party verified. No COA is publicly available, which limits independent verification of the beta-glucan claim and results in a score of 0 for that sub-dimension. The brand states third-party testing has taken place but does not publish a COA, so score_third_party_testing is 1. No transparency penalty applies as fewer than three core fields are missing.

Value

The platform calculates beta-glucans per serving at 960mg (2,400mg × 40%), based on the brand-stated beta-glucan percentage. Using the subscription price of £30.10 for 30 servings, the price per serving is approximately £1.00, giving a cost per 100mg beta-glucan of approximately £0.10. This places the product in the exceptional value tier, returning a value score of 9.48.

Trust

The brand holds a Trustpilot score of 4.6 from 3,320 reviews, meeting the threshold of ≥4.5 stars and ≥500 reviews for the maximum 5 points. The brand states third-party testing is conducted but does not publish a COA, scoring 1 point for third-party testing. Organic certification is confirmed by the Organic Food Federation, a named certification body, scoring 2 points.

Consumer Experience

The brand offers a subscription with no lock-in and an explicit cancel-or-skip-anytime policy, scoring the maximum 4 points for subscription flexibility. The subscription saving is 30%, well above the 15% threshold used to favour subscription pricing in value calculations. A 30-day money-back guarantee is stated, scoring 3 points, and the brand is UK-based and ships to the UK, scoring 3 points for UK availability.

Not publicly disclosed

  • Certificate of Analysis (COA)
  • Third-party beta-glucan verification
  • Dose per mushroom species

DIRTEA Chai: questions answered

What is the Cogniscore rating for DIRTEA Chai?+
DIRTEA Chai by DIRTEA has a Cogniscore disclosure rating of 8.36/10 (Fully Verified). 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 DIRTEA Chai 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 DIRTEA Chai?+
DIRTEA Chai contains the following mushroom species: Lion's Mane, Tremella, Reishi. 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.

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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.