Adaptogen Blend
Rainbow Dust
Spacegoods
Species: Lion's Mane, Chaga, Cordyceps
Ā£39.00 one-offĀ£33.15 subscription
Key information such as beta-glucan content is not publicly available.
This score reflects disclosure completeness ā not a verdict on product quality.
Scored: June 2026
Score breakdown
Score Breakdown
The product uses fruiting bodies across all three species (Lion's Mane, Chaga, and Cordyceps militaris), which scores the maximum 4 points for source type. The total mushroom dose is 3,000mg per serving, which meets the threshold for 2 points on dose adequacy. The extraction method is not publicly disclosed, scoring 0, and the beta-glucan percentage is not publicly disclosed, also scoring 0. The ingredient quality score therefore reflects strong sourcing and dosing disclosure but is limited by the absence of potency and processing data.
The brand states the source type clearly and confirms extraction is applied, but does not disclose the extraction method used. No COA is publicly available, and the beta-glucan percentage is not publicly disclosed. The country of origin is also not publicly disclosed, and three or more core fields are missing, triggering the missing-data penalty of minus 1 point.
Cost per 100mg beta-glucan cannot be calculated because the beta-glucan percentage is not publicly disclosed. Using the price per serving of Ā£1.30 (based on the subscription price of Ā£33.15 across 30 servings), this exceeds the Ā£1.20 per serving threshold, scoring 1 point before the standard deduction for absent beta-glucan data, resulting in a value score of 2.0. This score reflects price per serving only and cannot account for active ingredient concentration.
The brand has a Trustpilot score of 4.0 from 8,660 reviews, scoring 4 points. Third-party testing is not publicly disclosed and no COA is available, scoring 0 points. The product is not organically certified, scoring 0 points.
A subscription is available with no lock-in and a cancel-anytime policy, scoring the maximum 4 points for subscription flexibility. The brand offers a 30-day money-back guarantee, scoring 3 points. The product ships to the UK but is not confirmed as a UK-based brand, scoring 2 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
- unspecified
- Beta-glucan %
- Not publicly disclosed
- Total mushroom/serving
- 3000mg
- COA available
- No
- Organic certified
- No
- Caffeine per serving
- 80mg
- Trustpilot
- 4.0ā (8,660 reviews)
Score reasoning
Ingredient Quality
The product uses fruiting bodies across all three species (Lion's Mane, Chaga, and Cordyceps militaris), which scores the maximum 4 points for source type. The total mushroom dose is 3,000mg per serving, which meets the threshold for 2 points on dose adequacy. The extraction method is not publicly disclosed, scoring 0, and the beta-glucan percentage is not publicly disclosed, also scoring 0. The ingredient quality score therefore reflects strong sourcing and dosing disclosure but is limited by the absence of potency and processing data.
Transparency
The brand states the source type clearly and confirms extraction is applied, but does not disclose the extraction method used. No COA is publicly available, and the beta-glucan percentage is not publicly disclosed. The country of origin is also not publicly disclosed, and three or more core fields are missing, triggering the missing-data penalty of minus 1 point.
Value
Cost per 100mg beta-glucan cannot be calculated because the beta-glucan percentage is not publicly disclosed. Using the price per serving of Ā£1.30 (based on the subscription price of Ā£33.15 across 30 servings), this exceeds the Ā£1.20 per serving threshold, scoring 1 point before the standard deduction for absent beta-glucan data, resulting in a value score of 2.0. This score reflects price per serving only and cannot account for active ingredient concentration.
Trust
The brand has a Trustpilot score of 4.0 from 8,660 reviews, scoring 4 points. Third-party testing is not publicly disclosed and no COA is available, scoring 0 points. The product is not organically certified, scoring 0 points.
Consumer Experience
A subscription is available with no lock-in and a cancel-anytime policy, scoring the maximum 4 points for subscription flexibility. The brand offers a 30-day money-back guarantee, scoring 3 points. The product ships to the UK but is not confirmed as a UK-based brand, scoring 2 points for UK availability.
Not publicly disclosed
- Beta-glucan percentage
- Extraction method
- Certificate of Analysis (COA)
- Country of origin
- Dose per mushroom species
- Third-party beta-glucan verification
How Spacegoods could improve this score
Path to improvement
+0.2 points to reach Partial Disclosure
+0.2
pts needed
- 1
Publish a full-panel COA from an ISO 17025-accredited laboratory covering beta-glucans, heavy metals, and microbial contamination ā this would add approximately 3 points to transparency score and 3 points to trust score.
- 2
Disclose the beta-glucan percentage for each mushroom species, verified by a named third-party laboratory ā this would add up to 4 points to ingredient quality score and 2 points to transparency score.
- 3
State the extraction method clearly for each of the three species (Lion's Mane, Chaga, and Cordyceps) ā Chaga in particular benefits from dual extraction for triterpene content, and disclosure would add up to 2 points to ingredient quality score.
- 4
Disclose the country of origin for each mushroom ingredient ā this would add 1 point to transparency score and remove the missing-data penalty.
Actions that would raise this brand's disclosure score. See methodology for full scoring rules.
What is Rainbow Dust?
Rainbow Dust is a powdered adaptogen and functional mushroom blend from London-based brand Spacegoods. Each 8 g serving (one tablespoon) mixes with coffee or hot water, delivering three mushroom extracts and four adaptogens in a single daily serving. The product is marketed for focus, energy, and stress support. It is vegan, cruelty-free, and manufactured in England.
With 30 servings per pouch, the one-off price works out at Ā£2.23 per serving (Ā£67 Ć· 30), or Ā£1.67 per serving on subscription (Ā£50 Ć· 30).
Ingredient breakdown
The nutritional label discloses individual doses for all active ingredients ā a transparency positive that most blended adaptogen products avoid.
Mushroom extracts ā 3,000 mg total per serving
| Ingredient | Dose | Extract type |
|---|---|---|
| Lion's Mane (Hericium erinaceus) | 1,000 mg | Fruiting body, 5:1 extract |
| Cordyceps (Cordyceps militaris) | 1,000 mg | Fruiting body, 4:1 extract |
| Chaga (Inonotus obliquus) | 1,000 mg | Fruiting body, 4:1 extract |
All three species use fruiting body rather than mycelium ā the part of the mushroom generally considered to contain higher concentrations of active compounds such as beta-glucans and hericenones. The concentration ratios (5:1 and 4:1) indicate these are standardised extracts. The specific extraction technique (hot-water, dual, ethanol) is not named on the label; this distinction matters most for Chaga, which requires dual extraction to access its key triterpene compounds alongside polysaccharides.
Adaptogens and other actives
| Ingredient | Dose | Notes |
|---|---|---|
| Maca Root | 250 mg | ā |
| Ashwagandha Root | 200 mg | Extract type not specified on label |
| Natural Caffeine (from Coffee) | 80 mg | Roughly equivalent to one small espresso |
| Rhodiola Rosea | 25 mg | Providing 3 mg Salidroside |
| Pantothenic Acid (Vitamin B5) | 6 mg | 100% of EU Reference Intake |
Other ingredients: Cacao powder, Stevia (natural sweetener). No artificial colours.
Nutritional information per 8 g serving
| Nutrient | Per 8 g | % Reference Intake |
|---|---|---|
| Energy | 118 kJ / 29 kcal | ā |
| Fat | 1.4 g | 17% |
| of which saturates | 0.9 g | 11% |
| Carbohydrate | 1.5 g | 19% |
| of which sugars | 0.3 g | 3.9% |
| Fibre | 1.8 g | 24% |
| Salt | 0.01 g | 0.06% |
Are the doses clinically relevant?
- Lion's Mane at 1,000 mg: Within the clinically studied range (500ā3,000 mg daily). The 5:1 concentration ratio indicates meaningful extract density, though without a stated beta-glucan percentage the active compound load cannot be independently verified.
- Cordyceps at 1,000 mg: At the lower end of studied dose ranges (1,000ā3,000 mg daily). The 4:1 concentration partially compensates.
- Chaga at 1,000 mg: Within the broadly studied range (400ā2,000 mg daily).
- Ashwagandha at 200 mg: Below the 300ā600 mg range used in most human trials on cortisol and stress outcomes. Potency per milligram depends on the extract standard (e.g. KSM-66, Sensoril), which is not stated on the label.
- Rhodiola at 25 mg: Typical trial doses are 200ā600 mg root extract. However, the stated 3 mg Salidroside content is within the 1ā4 mg range used in salidroside-standardised studies, partially validating potency.
- Caffeine at 80 mg: A moderate, functional dose ā roughly one small coffee. Below the 200 mg threshold commonly associated with anxiogenic effects.
What the label still does not disclose
Despite full per-ingredient dose disclosure, four data points remain missing that affect the Cogniscore rating:
- Beta-glucan percentage: The most important quality marker for mushroom extracts. Without it, extract quality and value for money cannot be independently verified.
- Certificate of Analysis (COA): No third-party lab report is publicly linked. A COA from an ISO 17025-accredited laboratory would verify beta-glucan content and confirm absence of heavy metals and contaminants.
- Country of origin: The source region for the mushroom raw material (commonly China, US, or Europe) is not disclosed, limiting traceability assessment.
- Specific extraction method: The stated 5:1 and 4:1 ratios indicate concentration but not whether hot-water, ethanol, or dual extraction was used ā a distinction that determines which compound classes (polysaccharides vs. triterpenes) are preserved.
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