8.3
/10

Spacegoods Review: Does Rainbow Dust Justify $68 a Bag?

Spacegoods is a British functional drinks brand made in England, built on Rainbow Dust, a mushroom and adaptogen powder sold as an upgrade to your morning coffee. Here is our detailed analysis of the four dusts, their published milligram doses, the US prices and the shipping terms that apply to an American order.

Published on:
13/10/2025
3
min read
Reviewed by
our editorial team
Spacegoods Review: Does Rainbow Dust Justify $68 a Bag?
Review at a glance

Our verdict on Spacegoods in brief

Spacegoods does the one thing most functional coffee brands avoid: it prints the milligrams. Rainbow Dust lists 1,000 mg each of lion's mane, cordyceps sinensis and a 12:1 chaga extract, all from fruiting bodies, plus 300 mg of KSM-66 ashwagandha, 250 mg of maca root, 6 mg of vitamin B5 and 80 to 120 mg of natural caffeine from coffee, for an 8 g serving. Three grams of mushroom extract per cup is a real dose in a category full of proprietary blends, and the same transparency runs through Astro Dust, Matcha Dust, Hydro Dust and Glow Dust.

The price is the argument against. On the US store a one-month bag of Rainbow Dust is 68 dollars one-time, which the page works out at 2.26 dollars a serving, against 41 dollars on the flexible plan. Add 18 dollars of DHL shipping below the 75 dollar threshold and a first bag lands close to 86 dollars. The caffeine is also a range rather than a fixed figure. Delivery to the United States is direct, express and covered by a 60-day return policy.

Our score for
Spacegoods
8.3
/10
Visit the site
What I liked
Milligram doses published for every active: 1,000 mg per mushroom extract in Rainbow Dust
Fruiting body extracts and a branded KSM-66 ashwagandha at 300 mg, not an anonymous blend
A dedicated US storefront in dollars, with DHL Express in 3 to 4 business days
60-day return policy, made in England, third-party lab tested and non-GMO
Eight Rainbow Dust flavors including a decaf, plus sample packs from 17 dollars to try first
Could be better
Expensive per serving: 2.26 dollars one-time against 1.36 dollars on the flexible plan
Caffeine given as a range of 80 to 120 mg, so the exact dose per cup stays unknown
Prices move constantly between flavors, starter kits, clearance banners and plans
Video review of
Spacegoods
Recommended
Spacegoods
8.3
/10
Brand origin:
United Kingdom
-20%
with code
LIONSMANE45665
From:
$68.00
54.40
$
LIONSMANE45665
-20%
Visit the site

In this full review we go through the published doses, the US prices and the delivery terms of Spacegoods, product by product, based on the brand's own American storefront.

Brand scores

Product scores

Product quality:
4
/5
Origin:
3
/5
Value for money:
3
/5
Product range:
5
/5

User experience

Information quality:
4
/5
Website usability:
4
/5
Brand universe (packaging, branding):
3
/5

Shipping and customer service

Shipping times:
5
/5
Customer service:
4
/5
Spacegoods
8.3
/10
Brand origin:
United Kingdom
-20%
with code
LIONSMANE45665
From:
$68.00
54.40
$
LIONSMANE45665
-20%
Visit the site
Recommended

Our analysis of Spacegoods: the dusts under the microscope

A word on method before the numbers: this page is an analysis of the official Spacegoods pages, not a personal trial. Every dose, price and delivery term below comes from the brand's American storefront, its nutritional information panels and its refund policy, read the same day this review was written. Spacegoods ships to the United States directly, in dollars, so American readers can act on what follows.

First observation: the brand publishes what most competitors hide. Each product page carries a nutritional information block listing every active with its amount in milligrams per serving, which is the reason the brand scores as well as it does despite its price.

📌 Rainbow Dust: the morning blend and the flagship

Spacegoods review: Rainbow Dust mushroom coffee blend

Rainbow Dust is presented as coffee plus. For one 8 g scoop, the panel lists 1,000 mg of lion's mane fruiting body extract, 1,000 mg of cordyceps sinensis fruiting body extract, 1,000 mg of a 12:1 chaga extract, 300 mg of KSM-66 ashwagandha, 250 mg of maca root, 6 mg of vitamin B5 and 80 to 120 mg of natural caffeine from coffee, in a cacao base. Three grams of mushroom extract per serving is the number that matters here, and the brand calls the blend eight functional ingredients even though the panel itself shows seven lines.

On the US store a bag is a one-month supply and costs 68 dollars one-time, which the page converts to 2.26 dollars a serving, against 41 dollars and 1.36 dollars a serving on the flexible plan. Two bags are 110 dollars, three are 137 dollars. Eight flavors are listed, from Coffee Plus and Chocolate to Coffee Hazelnut, Vanilla Cinnamon, Strawberry and a Decaf Coffee, with Vanilla Cinnamon and Strawberry priced lower at 57 dollars. The powder is vegan, gluten-free, non-GMO and free from added sugar, and the caffeine means it belongs in the morning, not after lunch.

📌 Astro Dust: the evening counterpart

Astro Dust is the night version of the same idea, and its panel is the most loaded of the range: 1,000 mg each of maitake, reishi and tremella fruiting body extracts, 3,000 mg of L-glycine, 300 mg of KSM-66 ashwagandha, 220 mg of L-tryptophan, 169 mg of magnesium, 150 mg of lemon balm, 150 mg of Montmorency cherry powder and 100 mg of chamomile. Magnesium contributes to the normal functioning of the nervous system, which is the authorized claim available here; the plants are traditionally used for rest and the brand presents the cherry powder as a natural source of melatonin.

It is sold in Chocolate and Chai at 68 dollars a bag on the US store, with the same 110 and 137 dollar steps for two and three bags. As with every sleep product it supports a routine rather than replacing one, and anyone on sedatives should clear it with a doctor first.

📌 Glow Dust: the beauty blend, and the question mark

Glow Dust is the 6-in-1 skin, gut and hormone blend: 3,000 mg of hydrolysed bovine collagen, 2,800 mg of tremella mushroom, the ActiBio and Livaux pre and probiotic duo at 10 billion CFU, 120 mg of Aquamin red algae calcium, 2.1 mg of iron, 10 mcg of vitamin D3 with 37.5 mcg of vitamin K2, a B-vitamin complex at 100 percent of reference intakes and eight fruit powders including goji, acai and bilberry. Note that the collagen is bovine, so this is the one product in the range that is not vegan.

The US page shows 57 dollars for a one-month supply one-time, 1.90 dollars a serving, against 45 dollars on the plan. Two reservations: Glow Dust no longer appears in the store's main listing, and the site banner announces a final clearance on Glow and Hydro Dust. Check availability before counting on a repeat order.

The verdict on format and dosing

Every dust is one scoop a day, 8 g for Rainbow Dust, mixed into hot or cold water, milk or an existing coffee. The brand allows up to three servings a day, which would put the caffeine between 240 and 360 mg, so one serving is the sensible default. Sample packs of seven or fourteen sachets, from 17 dollars, exist for exactly this reason.

Two terms are worth reading before ordering. The return policy runs 60 days from receipt, with the item in its original condition, and the US shipping fee is 18 dollars below the 75 dollar free-delivery threshold, which is why the two-bag order is the one that makes arithmetic sense.

Effectiveness and what to expect

Spacegoods is careful with its wording, and so are we. The claims that hold are the authorized ones attached to the nutrients: vitamin B5 contributes to the reduction of tiredness and fatigue, magnesium contributes to the normal functioning of the nervous system and to normal muscle function, vitamin C and zinc contribute to the normal function of the immune system. The mushrooms and adaptogens sit in a different register: lion's mane, cordyceps, reishi and KSM-66 ashwagandha are studied ingredients, and KSM-66 is the most documented extract of the group, but a supplement is not a treatment.

The brand's own figures come from a customer survey of more than 35,000 participants dated January 2026, with 91 percent reporting improved focus and 89 percent improved energy. Those are declarative results collected by the company, not clinical endpoints, and Spacegoods says so on the page.

Who is Spacegoods?

Spacegoods is a British brand whose founder describes creating the product after a year of too much coffee and anxiety, looking for focus and calm in a single blend. Manufacturing is in England, the UK orders leave a warehouse in the south of England and international orders are fulfilled from the Netherlands, with a separate DHL Express route for the United States. The brand states that its products are third-party lab tested, non-GMO, vegan and cruelty-free, with no artificial additives, gluten or added sugar.

The commercial figures the company displays on its own site are large: more than 30 million servings sold, over a million customers and more than 11,000 reviews, with a rating of 4.5 out of 5 shown as Excellent on every product page. Those are the brand's published numbers, and the milligram panels are what make the rest of its claims checkable.

📌 Key commitments

  • Milligram amounts published for every active, on every product page
  • Fruiting body mushroom extracts and branded actives such as KSM-66, Aquamin, ActiBio and Livaux
  • Made in England, third-party lab tested, non-GMO and free from artificial additives
  • 60-day return policy and a money-back guarantee announced on the product pages
  • Dedicated US storefront in dollars with DHL International Express delivery

Rainbow Dust against a standard mushroom coffee

Criteria
Analyzed by TBS Rainbow Dust by Spacegoods
Standard mushroom coffee
Mushroom dose per serving ❌Often a blend of 500 mg to 2,000 mg, sometimes mycelium grown on grain
Adaptogens named and dosed ❌Usually an unbranded extract with no amount published
Caffeine disclosed ❌Rarely stated per cup, and often lower than expected
Price per serving ✅Frequently under 1.50 dollars a cup
Satisfaction guarantee ❌Commonly 14 to 30 days, when there is one
Ships to the United States ✅Usually yes, and free faster when the brand is American

The table explains the price. Most mushroom coffees sell a blend, Spacegoods sells three named extracts at 1,000 mg each plus a branded ashwagandha, and it prints the caffeine instead of implying it is negligible. What you pay for that is roughly double the per-cup price of the category, softened by the flexible plan and the 60-day window. The last row is the practical one for an American reader, and the answer is yes.

The Spacegoods range

The catalog is organized by moment of day. Rainbow Dust is the morning blend at 68 dollars a bag, Matcha Dust runs the same mushroom base with 60 mg of caffeine from matcha green tea instead of coffee, also at 68 dollars, and Astro Dust is the evening blend at 68 dollars. Hydro Dust is the electrolyte powder at 57 dollars, with 497 mg of chloride, 250 mg of Himalayan pink salt, 220 mg of potassium, 80 mg of vitamin C, 56.25 mg of magnesium, 5 mg of zinc and 1,000 mg of reishi, and it now has a creatine version. Glow Dust completes the list at 57 dollars.

Around the powders sit the newer formats: an Oat Mushroom Latte in cans from 49 dollars for twelve, a coconut creamer dust from 14 dollars, sample packs from 17 dollars and accessories. The gummies listed in older sources are no longer sold on the American store.

Composition breakdown: what the dusts are actually made of

Rainbow Dust and Matcha Dust, active by active

The two daytime blends share a backbone: 1,000 mg of lion's mane, 1,000 mg of cordyceps sinensis and 1,000 mg of 12:1 chaga, all fruiting body extracts, 300 mg of KSM-66 ashwagandha, 250 mg of maca root and 6 mg of vitamin B5. The only difference is the stimulant: coffee at 80 to 120 mg of caffeine in Rainbow Dust, matcha green tea at a fixed 60 mg in Matcha Dust. If caffeine is your constraint, Matcha Dust is the predictable one, and Decaf Coffee is the Rainbow Dust flavor to look at.

One caveat on the extracts. The brand names the mushroom parts, which is the important half of the question, but publishes no beta-glucan percentage or lot certificate beside the panel, and only the chaga carries a stated extraction ratio.

Astro Dust, Hydro Dust and Glow Dust, active by active

Astro Dust stacks 3,000 mg of L-glycine and 220 mg of L-tryptophan on top of maitake, reishi and tremella at 1,000 mg each, with 169 mg of magnesium. Hydro Dust is an electrolyte formula built on chloride, potassium, Himalayan salt sodium and 56.25 mg of magnesium, with vitamin C, zinc, D3 and 1,000 mg of reishi. Glow Dust rests on 3,000 mg of hydrolysed bovine collagen and 2,800 mg of tremella. Each panel is complete enough to compare against whatever you already take.

Buying Spacegoods from the United States

Spacegoods ships to the United States and runs a dedicated American storefront in dollars, so no exchange rate applies to the prices quoted on this page. The published US service is DHL International Express in an estimated 3 to 4 business days, at 18 dollars for a one-time order below 75 dollars and free for subscriptions and for orders above 75 dollars. UK and European orders leave different warehouses, which is why the American terms are worth reading on their own.

The arithmetic is simple. One bag of Rainbow Dust at 68 dollars plus 18 dollars of shipping lands at 86 dollars, while two bags at 110 dollars cross the free-delivery line and land at 55 dollars a bag. The code LIONSMANE45665 is listed at 20 percent off eligible one-time orders, putting a single bag at 54.40 dollars, while the flexible plan shows 41 dollars with free express delivery. Returns run 60 days from receipt, and the brand asks you to request the return before sending anything back.

Rainbow Dust holds first place in our ranking of the best mushroom coffee in the UK and third in the US edition, where its fully quantified label is what sets it apart.

Technical analysis and expert verdict

On the strengths side, Spacegoods sits in the top tier of its category for transparency. Fruiting body extracts named part by part, 1,000 mg per mushroom, a branded KSM-66 ashwagandha at the dose used in its own literature, a caffeine figure printed on the page, English manufacturing, third-party testing, a 60-day return window and direct express delivery to the United States. For a buyer who wants to know what is in the scoop, very few competitors publish this much.

The limits are the price and the pricing itself. At 2.26 dollars a serving one-time, Rainbow Dust is roughly double a standard mushroom coffee, and the store multiplies starter kits, clearance banners, flavor-dependent prices and plan discounts to the point where two visitors can see two different figures for the same bag. Add a caffeine range rather than a number, no beta-glucan percentage, no lot certificate next to the panel, and a Glow Dust that looks to be on its way out, and the verdict is clear: excellent formulation work, demanding price, and a cart worth double-checking before you pay. The code LIONSMANE45665 takes 20 percent off eligible one-time orders.

The Spacegoods flagship products

📌 Rainbow Dust

Spacegoods review: Rainbow Dust mushroom and adaptogen powder

The founding product and the best seller: an 8 g scoop with 1,000 mg each of lion's mane, cordyceps sinensis and 12:1 chaga fruiting body extracts, 300 mg of KSM-66 ashwagandha, 250 mg of maca, 6 mg of vitamin B5 and 80 to 120 mg of natural caffeine from coffee, in a cacao base. Vegan, gluten-free and free from added sugar, in eight flavors including a decaf. A one-month bag is 68 dollars one-time on the US store, 41 dollars on the flexible plan, with two bags at 110 dollars.

📌 Astro Dust

The evening blend: 1,000 mg each of maitake, reishi and tremella, 3,000 mg of L-glycine, 300 mg of KSM-66 ashwagandha, 220 mg of L-tryptophan, 169 mg of magnesium, plus lemon balm, chamomile and Montmorency cherry. Chocolate and Chai, 68 dollars a bag, caffeine-free.

Use the code LIONSMANE45665 for 20 percent off eligible one-time orders on the official Spacegoods US store, which puts a single bag of Rainbow Dust at 54.40 dollars. Compare it against the flexible plan at 41 dollars with free delivery before you choose, since plan pricing and codes do not combine.

Go further: browse the Spacegoods brand page with the full product list, the Spacegoods promo code LIONSMANE45665 and the Rainbow Dust - Spacegoods product sheet.

Recommended
Spacegoods
8.3
/10
Brand origin:
United Kingdom
-20%
with code
LIONSMANE45665
From:
$68.00
54.40
$
LIONSMANE45665
-20%
Visit the site

Our final verdict: should you buy from Spacegoods?

My final score:
8.3
/10
Spacegoods earns its place for one reason above all: it publishes the milligrams. Rainbow Dust carries 3,000 mg of fruiting body mushroom extracts, 300 mg of branded KSM-66 ashwagandha and a stated 80 to 120 mg of caffeine per 8 g serving, which is far more than most functional coffees disclose. English manufacturing, third-party testing, a 60-day return policy and DHL Express to the United States in 3 to 4 business days complete a solid picture. The cost is real: 68 dollars a bag one-time, 2.26 dollars a serving, and a store where prices change between flavors, kits and plans. Start with a sample pack, then choose between the 20 percent code and the flexible plan at 41 dollars.
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Spacegoods
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