Is Spacegoods Rainbow Dust Good? UK Mushroom Coffee Reviewed
In one line
Spacegoods mushroom coffee (Rainbow Dust) is the UK's biggest and has the clearest label of any multi-mushroom coffee: 1,000 mg each of fruiting-body lion's mane, cordyceps and chaga, plus 300 mg KSM-66 ashwagandha. But it is a flavoured, sweet-leaning drink rather than a plain coffee, at about £1.63 a serving, and its lab-testing claim has no published COA.
- Price
- $49.00 / 30 servings
- Per serving
- $1.63
- Caffeine
- 120 mg
- Mushrooms
- 3 species · 3,000 mg
- Part used
- fruiting body
- Beta-glucans disclosed
- No
- 3rd-party tested
- Yes
- Format
- instant
What this page covers
- Rainbow Dust 240 g pouch, Coffee flavour, at UK one-time pricing
- Per-species doses compared to the research
- Caffeine by flavour
What it does not cover
- Spacegoods' Astro Dust sleep blend
- US-site pricing, which was not displayed when we checked
Spacegoods
Spacegoods mushroom coffee (Rainbow Dust) is the UK's biggest and has the clearest label of any multi-mushroom coffee: 1,000 mg each of fruiting-body lion's mane, cordyceps and chaga, plus 300 mg KSM-66 ashwagandha. But it is a flavoured, sweet-leaning drink rather than a plain coffee, at about £1.63 a serving, and its lab-testing claim has no published COA.
$49.00 · $1.63/serving · 120 mg caffeine
We may earn a commission, at no cost to you.
What's on the label vs. what the research used
| Mushroom | Label dose / serving | Part used | Dose in named human studies |
|---|---|---|---|
| Lion's Mane | 1,000 mg | fruiting body | 1,000–3,000 mg/day |
| Cordyceps | 1,000 mg | fruiting body | 1,000–4,000 mg/day |
| Chaga | 1,000 mg | fruiting body | No completed human RCTs |
Why it's on our radar
Spacegoods is the UK's answer to RYZE — a London direct-to-consumer brand claiming 35,000-plus customers and 30 million servings — and it now has a US storefront. What earns it a place here is the label: full per-species mushroom doses, which almost no multi-mushroom coffee prints.
Taste
We have not completed our two-week test on every flavour, so this section is built from the ingredient list and reviewer consensus. Rainbow Dust is a flavoured powder rather than a coffee with mushrooms added; reviewers consistently describe the Chocolate variants as cacao-forward and on the sweet side, and the Coffee flavour as the closest to an actual cup. With 3 g of extract per serving including chaga, some earthiness comes through, and most reviewers recommend a frother or blending with milk rather than just stirring.
Price and value
£49 for 30 servings is about £1.63 per cup at the one-time price, falling to roughly £1.30 on subscription. The site leans hard on a discounted starter kit for the first order. We rated value on the one-time price and in GBP, because the US site did not show dollar pricing when we checked; expect a premium once shipping is included.
Transparency
This is where Spacegoods leads. Lion's mane, cordyceps and chaga are each listed at 1,000 mg, with fruiting body and a 12:1 extract ratio on the chaga, and the adaptogens are dosed on the label too (300 mg KSM-66 ashwagandha, 250 mg maca). That lion's mane figure is the low end of the 1,000–3,000 mg/day trial range — more than a whole cup of most US blends. What is missing is organic certification and a published COA behind the testing claim.
Verdict
The best-disclosed multi-mushroom coffee we have found and the only one that gets lion's mane to a studied daily dose in a single serving. Whether you enjoy it comes down to whether you want a sweet flavoured drink or a coffee.
Spacegoods
Spacegoods mushroom coffee (Rainbow Dust) is the UK's biggest and has the clearest label of any multi-mushroom coffee: 1,000 mg each of fruiting-body lion's mane, cordyceps and chaga, plus 300 mg KSM-66 ashwagandha. But it is a flavoured, sweet-leaning drink rather than a plain coffee, at about £1.63 a serving, and its lab-testing claim has no published COA.
$49.00 · $1.63/serving · 120 mg caffeine
We may earn a commission, at no cost to you.
Frequently asked questions
How much caffeine is in Spacegoods Rainbow Dust?
It depends on the flavour. Spacegoods lists 80–120 mg of natural caffeine per 8 g serving: the Coffee flavour is at the top of that range at around 120 mg, roughly a regular cup, while the Chocolate and Vanilla Cinnamon versions are closer to 80 mg. A Decaf Coffee flavour is also sold.
How much lion's mane is in Rainbow Dust?
1,000 mg of lion's mane fruiting-body extract per serving, stated on the label alongside 1,000 mg cordyceps and 1,000 mg chaga. That puts lion's mane at the bottom of the 1,000–3,000 mg/day range used in the main human trials, which is more than any of the big US instant blends deliver per cup.
How much does Spacegoods cost per serving?
A single 240 g pouch of 30 servings is £49 at the one-time price, or about £1.63 per serving. Subscriptions bring it to roughly £39 per pouch, and the site pushes a discounted starter kit for the first order. USD pricing was not displayed on the US storefront when we checked.
Is Spacegoods mushroom coffee organic?
No. Spacegoods does not claim organic certification for Rainbow Dust. It does state that the product is vegan, non-GMO, gluten-free and made in England, and that it is third-party lab tested for heavy metals and allergens, though we did not find a published certificate of analysis.
Sources
- Spacegoods Rainbow Dust product page — One-time pouch price, 8 g serving, 80–120 mg caffeine, per-species 1,000 mg doses, KSM-66 and maca amounts, fruiting-body and lab-testing claims
- Spacegoods Rainbow Dust Starter Kit page — Starter-kit pricing, London/Birmingham location, flavour list