Score breakdown
Score Breakdown
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.
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.
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.
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.
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.
By dimension
Standardisation, extraction method, form specificity
Third-party testing, CoA availability, label accuracy
Price per active dose relative to category
Accreditations, regulatory compliance, brand history
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?+
How is the DIRTEA Chai score calculated?+
What mushrooms are in DIRTEA Chai?+
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