Spacegoods Review 2026: Honest Verdict from a UK Coffee Roaster

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When you spend six months in a roastery testing how much Lion's Mane extract you can add to a coffee blend before the flavour falls apart, you develop a specific kind of scepticism toward adaptogenic products. You learn that 'mushroom coffee' can mean almost anything. A 50mg dusting of mycelium powder. A 1,500mg clinical-strength extract. Both can sit behind the same label.

I founded Balance Coffee, which makes its own Lion's Mane Coffee. This review is editorially independent. Spacegoods is assessed on its own merits, and where it does something well, I will say so plainly.

My name is James Bellis. I started in coffee in 2012, spent five years finding the best flat white in every town from Inverness to Exeter while selling espresso machines for Sanremo UK, and have visited almost 300 roasteries across the country. My writing has been featured in Forbes.

By James Bellis, Health and Wellness Editor at Balance Journal

Spacegoods is a UK adaptogenic supplement brand founded by Matthew Kelly in April 2022. The company is based in London with products manufactured in Surrey, and it entered the market with a single product: Rainbow Dust, a chocolate-flavoured powder blending functional mushrooms, adaptogens, and natural caffeine.

The brand grew quickly. Within its first year, Spacegoods reported over 30,000 orders and £1.4 million in revenue from that one product, according to Yahoo Finance UK (2024). Kelly, an e-commerce entrepreneur who previously built and scaled a brand called Neon Beach to £10 million in revenue, brought a direct-to-consumer playbook to the functional mushroom space.

The range has since expanded. Rainbow Dust now comes in multiple flavours, including Chocolate, Coffee, and Strawberry. Spacegoods also sells Astro Dust, a sleep-focused blend with reishi and magnesium, and Moon Chews, a Lion's Mane gummy for on-the-go use. But Rainbow Dust remains the core product, and it is the focus of this review.

We ordered Rainbow Dust in the original Chocolate flavour (240g, 30 servings) directly from spacegoods.com. Testing ran for four weeks through The Editor Lab, our structured review framework.

Each serving was prepared according to Spacegoods' own instructions: three scoops (8g) stirred into 250ml of hot water. We tested it black, with oat milk, and blended cold. We recorded flavour, mixability, and daily usability. We did not attempt to measure long-term cognitive effects, because a personal trial is not a clinical study, and this review will not pretend otherwise.

The first thing you notice with Rainbow Dust is the sweetness. It hits immediately, before the chocolate, before the earthiness. Spacegoods uses stevia as its sweetener, and it is not subtle. For anyone accustomed to drinking black coffee or unsweetened cacao, the initial impression lands closer to a hot chocolate sachet than a functional coffee alternative.

Past the sweetness, there is a cocoa flavour that is rich enough to carry the drink. The cocoa powder base provides body, and a faint bitterness sits underneath that reads as roasted cacao rather than mushroom. On the nose, it smells like drinking chocolate with a dry, slightly earthy note that fades after the first few sips.

Mixed into hot water, Rainbow Dust dissolves reasonably well with 30 seconds of stirring. A small amount of sediment tends to settle at the bottom of the cup, more noticeable in water than in milk. With oat milk, the drink improves noticeably. The milk softens the stevia edge and rounds out the body into something genuinely pleasant to drink daily.

Worth flagging: the taste polarises people. Consumer reviews on Trustpilot, where Spacegoods holds a 4.1 out of 5 rating across approximately 8,500 reviews (as of April 2026), split cleanly between those who find it indulgent and enjoyable and those who describe it as overly sweet or artificial-tasting. If you are sensitive to stevia, try the sample pack before committing to a full tub.

Spacegoods lists its full ingredient panel, which is a good sign. Transparency is not universal in this category. The doses tell a more complicated story.

Per 8g serving of Rainbow Dust Chocolate, the active ingredients are:

The mushroom doses are the strongest part of this formulation. Lion's Mane at 1,000mg from a 5:1 extract is a meaningful dose. Chaga and cordyceps at the same level, both as 4:1 extracts, add genuine volume. Where the formula weakens is in the adaptogens. Ashwagandha at 200mg and rhodiola at 25mg sit well below the doses used in the clinical studies that gave these ingredients their reputation. They are present, but whether they are present in quantities that do anything is a fair question.

For comparison, London Nootropics uses branded KSM-66 ashwagandha in its Zen blend at a dose the brand states is clinically relevant. Dirtea focuses on single-mushroom purity, offering 1,000mg of organic Lion's Mane per serving in its Coffee Super Blend without the adaptogen extras. Balance Coffee's Lion's Mane Coffee takes a different approach entirely: 1,500mg of organic dual-extraction Lion's Mane in a ground speciality coffee, brewed through a filter or cafetiere rather than dissolved in water. Each formulation reflects a different philosophy on what 'functional coffee' means.

Rainbow Dust Chocolate (240g, 30 servings) costs £49.00 for a one-time purchase from spacegoods.com (as of April 2026). Subscription pricing drops that to approximately £39.00 per tub, depending on the plan selected. The product is also available through Amazon UK, Holland and Barrett, Boots, and Ocado, where pricing may differ.

For context, here is how that compares to other functional mushroom products in the UK:

Spacegoods is the most expensive option on a per-serving basis. The question is whether the multi-ingredient formula justifies the premium. If the ashwagandha and rhodiola were dosed at clinically studied levels, the argument would be straightforward. At their current doses, you are paying more for a wider ingredient list, not necessarily a more effective one.

Spacegoods suits a specific type of buyer. If you want a single-scoop morning drink that combines caffeine, mushroom extracts, and a chocolate flavour without needing to brew anything, Rainbow Dust delivers that. It is convenient. It is reasonably tasty with milk. And the mushroom doses, particularly Lion's Mane, are credible.

It works well for people who are new to functional mushrooms and want to try several ingredients at once without buying four separate supplements. It also suits anyone who dislikes the taste of coffee but still wants a caffeinated functional drink.

It is less suited to people who want clinical-strength adaptogen doses, who prefer actual coffee over a chocolate powder, or who are sensitive to stevia. If you already brew coffee at home and want mushroom benefits, a ground mushroom coffee like those in our best lions mane coffee UK guide will likely serve you better, both in coffee quality and cost per serving.

The three brands UK buyers are most likely weighing against Spacegoods:

Spacegoods vs London Nootropics: London Nootropics uses branded, traceable adaptogen ingredients (KSM-66 ashwagandha, Rhodiolife rhodiola, Hifas da Terra mushrooms) at doses the brand claims are clinically relevant. Spacegoods uses a wider ingredient panel but at lower individual adaptogen doses. London Nootropics costs less per serving. If ingredient provenance matters to you, London Nootropics has the edge. If you prefer a powder format over sachets and want higher mushroom volume, Spacegoods offers more mushroom per serving. Read our London Nootropics review for the full comparison.

Spacegoods vs Dirtea: Dirtea takes a purist approach, offering single-mushroom extracts and a simpler coffee blend. Its Coffee Super Blend costs roughly £0.63 per serving, making it significantly cheaper. Dirtea uses 100% organic fruiting body extracts with dual extraction, which is a quality signal. Spacegoods packs more ingredients into each serving but at a higher price point and with some ingredients dosed below clinical thresholds. For mushroom purity, Dirtea. For ingredient variety, Spacegoods. See our Dirtea review for the detailed breakdown.

Spacegoods vs Balance Coffee Lion's Mane Coffee: These are fundamentally different products. Balance Coffee is a ground speciality coffee containing 1,500mg of organic dual-extraction Lion's Mane, designed to be brewed like normal coffee. Spacegoods is a chocolate-flavoured powder dissolved in water. Balance Coffee gives you a genuine coffee experience with higher Lion's Mane dosing at £1.13 per serving. Spacegoods gives you a broader adaptogen blend in a more convenient format. If you own a cafetiere or filter, Balance Coffee. If you want zero brew time, Spacegoods.