The mushroom people take daily, the way others take a multivitamin.
Naturally richFive groups of compounds in one extract.
Melanin, polyphenols, betulin, triterpenes and beta-glucans.
No caffeineNot a stimulant.
No jitters, and nothing to keep you up at night.
What our customers take Chaga for, in their own words in the reviews below. Individual experience varies.
How to use it
Two droppers. Done.
A morning habit that simply makes sense.
01
Measure 2 droppers
Two millilitres is the daily serving.
02
Add it to a drink, or under the tongue
Water, tea or coffee: stir. Or hold it under the tongue for several seconds, then drink some water.
03
Repeat daily
Regularity matters more than the perfect hour.
When
In the morning, with breakfast or in the first coffee or tea.
Alcohol
None. It is evaporated after the extraction.
Do not exceed the recommended daily serving.
In your drink
Water, tea or coffee.
Under the tongue
Hold it for several seconds, then drink some water.
On the move
Convenient when you travel.
MelaninPolyphenolsBetulin, betulinic acid
What is inside
Black outside. Gold inside.
They call chaga (Inonotus obliquus) the mushroom multivitamin for how much one mushroom holds. Its black crust is rich in melanin; inside are polyphenols, the antioxidant compounds it is known for, with triterpenes and polysaccharides, beta-glucans among them. And because it grows on birch, it carries betulin and betulinic acid from the tree.
The compounds inside
Structure, simplifiedPigment · the black crust
Melanin
The dark pigment that gives chaga its black, cracked outer layer.
Why it mattersWhat makes chaga black, and the compound it is best known for.
In this extractNaturally present in chaga.
On recordIn fungi, melanin is known as a shield against sunlight and cold.
Structure, simplifiedAntioxidant compounds · the inside
Polyphenols
A group of compounds found in the rust-brown interior of chaga. They are the antioxidant compounds it is known for.
Why it mattersA large family of natural compounds, also found in tea, berries and cocoa.
In this extractNaturally present in chaga.
Structure, simplifiedTriterpene · from the birch
Betulin
A compound of birch bark, and the reason the bark is white. Chaga takes it up from the tree it grows on.
Why it mattersIt comes from the birch the chaga grows on.
In this extractIt does not dissolve in water. That is why the extract is made twice: hot water, then ethanol.
On recordFirst isolated from birch bark in 1788, by Johann Tobias Lowitz.
Structure, simplifiedTriterpene · from the birch
Betulinic acid
A close relative of betulin, and like it a compound that comes from the birch.
Why it mattersA close relative of betulin, formed from it.
In this extractCarried into the extract by the same ethanol step.
Structure, simplifiedTriterpenes · dissolve in alcohol
Triterpenes
A group of natural compounds that make up the chemical profile of chaga.
Why it mattersThe same class of compound that makes reishi bitter.
In this extractNaturally present in chaga.
On recordInotodiol, chaga’s own triterpene, was described in 1958 by Ludwiczak and Wrzeciono, in Poland.
Structure, simplifiedPolysaccharides · dissolve in water
Beta-glucans
Sugars naturally present in mushrooms, in their cell walls among other places.
Why it mattersThe best-known compound in functional mushrooms, and the one a good extract is judged by.
In this extractMeasured in the 10:1 extract: 9.9% (ALS, accredited laboratory).
On recordThe standard yardstick for a mushroom extract: the higher the confirmed level, the more concentrated the extract.
Beta-glucans are the compound measured in the 10:1 extract. The others are naturally present in chaga. Inonotus obliquus appears in 451 papers indexed on PubMed (October 2026). The drawings are simplified. “Why it matters” says what a compound is or is known for, not a promised effect.
Use it regularly
The 12‑week cycle.
We recommend a cycle of three to four months of regular use, followed by a month’s break.
Daily serving
Two droppers, in a drink or under the tongue for several seconds.
2 ml2 droppers
When
In the morning, with breakfast or in the first coffee or tea. Regularity matters more than the perfect hour.
Morningwith breakfast
One bottle
Sixty millilitres: a month in every bottle.
30 days60 ml
Do not exceed the recommended daily serving. Food supplement: not a substitute for a varied diet.
The maths
£0.80 a day.
One 60 ml bottle is a 30-day supply at 2 ml a day. That is the subscription price, with 20% off every bottle and free UK delivery. Pause, skip or cancel anytime.
Written by customers of our EU store, solvelabs.eu, about the same company and the same products, and translated here from Polish. They are the opinions of individual buyers. Figures as shown on Trustpilot, October 2026.
“It is the only Polish brand on the mushroom supplement market that deserves trust. I have been buying month after month, I know all their products and have tried them all. Everything is as described…”
“Of course the product is great. But here I value the service. From the quick handling of the order, through the very nice packaging, to the after-sales service, which matters most. You can ask, you can talk. Thank you, and I recommend it!”
“I received top-shelf goods, and Solve Labs always rises to the occasion in every respect: price, quality, delivery and expert advice. On top of that, great contact and quick answers to questions about the products. I warmly recommend them!”
“Fast shipping. The products are packed perfectly, so they do not arrive battered, which often happens with supplements. With Solve Labs there are no such problems. Fairly priced. A wide choice of payment and delivery options. I will certainly be back.”
“Very precise and clear product descriptions, a very quick and smooth transaction and lightning delivery. I will describe the products after a month of taking them. I recommend the company.”
“A very efficient shipping system. The supplements are top quality, as always.”
“I warmly recommend them: the products really are reliable when it comes to quality.”
“Good communication and service. Very quick and efficient in solving a problem.”
“Great customer service, quick delivery, and the best quality supplements like always.”
Ratings & reviews
What buyers actually say.
Every review below is from a real order on solvelabs.world, shown in the customer’s own words.
5.0
★★★★★★★★★★
Average of 4 verified reviews for Solve Labs Chaga on solvelabs.world.
Breakdown · 4 reviews
5★100%
4★0%
3★0%
2★0%
1★0%
★★★★★The one from home
“I am happy to see my favourite mushroom brand in the UK. Since I moved from Europe, where the brand is one of the top, my sister used to send it over. These are really effective extracts guys :)”
VerifiedKornel· solvelabs.world · 2024
★★★★★The best extract I’ve tried
“I have tried many brands and these are definitely the best extract powder there is. I can definitely feel the difference. Highly recommend if you are looking for good quality extracts. And if you have any questions the seller is very helpful.”
VerifiedAleksandra· solvelabs.world · 2024
★★★★★Lasts longer than it looks
“Even though it seems expensive, the scoop you use is small so it actually lasts quite well.”
VerifiedJohn· solvelabs.world · 2024
★★★★★Easy
“Easy to use product and seems effective!!!”
VerifiedFabienne· solvelabs.world · 2024
★★★★★Two words
“Great product!”
VerifiedAnetta· solvelabs.world · 2024
Reviews are verified purchases collected on solvelabs.world through our review platform, shown in the customer’s own words and lightly edited for length. They reflect individual experiences and are not claims made by Solve Labs. Food supplement — not a substitute for a varied diet or medical advice.
The set · save 15%
The Long Game
Nothing here works in a week. That is rather the point. Three to take every day, for the long run.
£30.00
15% comes off in the basket on three items or more, as a one-time purchase.
4.8 on Trustpilot · 253 reviews
Every batch lab-tested
Heavy metals: tested
Microbiology: tested
Every amount on the label
No proprietary blends
Made in the EU · HACCP
Batch certificate on request
60 days to decide
4.8 on Trustpilot · 253 reviews
Every batch lab-tested
Heavy metals: tested
Microbiology: tested
Every amount on the label
No proprietary blends
Made in the EU · HACCP
Batch certificate on request
60 days to decide
FAQ
Questions, answered.
Mostly as an everyday mushroom, taken daily all year, and by many as a dark, caffeine-free cup in place of an afternoon coffee. It is a food supplement, not a medicine, and individual experience varies: the reviews on this page are our customers’ own accounts.
At any time of day. It contains no caffeine, so many people have it in the afternoon in place of a coffee.
No. Ethanol is used in the extraction and is evaporated afterwards.
The capsules and the powder are the same 10:1 extract: 1,000 mg a day, as two capsules or two scoops. The drops are a 15:1 liquid extract, 2 ml a day. Choose the one you will actually take every day.
A fresh bottle at the interval you choose, at 20% off. Pause, skip a delivery or cancel at any time from your account. There is no minimum term.
It is not for children, or for use during pregnancy or breastfeeding. Chaga is naturally high in oxalates: if you have a history of kidney stones, talk to your doctor before taking it. If you take medication or are under medical care, talk to your doctor first.
Orders are dispatched within 1–2 working days. UK standard delivery takes 3–5 working days and is free on orders over £50. Your first order has a 60-day guarantee, even opened. Delivery, returns and subscriptions are explained in full on the Help page.
Rather swallow, or stir? The same mushroom comes as capsules and as a powder.
Independently tested by ALS, InventUR & GBA Polska · results relate to the tested sample.
Lot GS241201
Beta-D-glucans are the category’s yardstick for how much real mushroom an extract carries. Chaga naturally carries far fewer than reishi or lion’s mane, which is why a measured chaga figure looks modest next to an unmeasured “polysaccharide” claim. These figures relate to the tested sample.
Beta-D-glucans, tested sample9.9%
Dry-matter basis10.5%
Tested sampleChaga powder · 100 g
MethodMegazyme mushroom & yeast
Extract per serving1,000 mg, 10:1
ALS Food & Pharmaceutical Polska · accredited No. 1163
Signed: Magdalena Woda · ALS Food & Pharmaceutical (accredited, No. 1163) · Dec 2022
A chemical assay tells you how much; it cannot tell you what. Species identity is confirmed by sequencing the ITS region — the universal barcode marker for fungi — against the public NCBI database.
Named speciesInonotus obliquus
Identity match99.3%
Marker sequencedITS barcode
Reference databaseNCBI
MethodPCR + Sanger sequencing
InventUR Sp. z o.o. · spin-off of the University of Rzeszów
Signed: Bartosz Jadam, CEO · InventUR (University of Rzeszów) · 22 Jul 2024
Heavy metals are screened against the EU maximum levels for food (Reg. 2023/915). In the tested lot, each element sat well within its permitted limit. Values in mg/kg.
Lead (limit ≤3.0)0.036
Mercury (limit ≤0.1)<0.0010
Cadmium0.0037
Arsenic0.031
GBA Polska · PCA-accredited No. AB 1095 (ILAC-MRA)
Qualified electronic signature · GBA Polska (PCA-accredited, No. AB 1095) · Mar 2025
273 Chaga listings — 196 US, 75 UK, 1 ES — across
178 distinct brands, retrieved and read 15–16 August 2026.
What we found
273products audited
178 distinct brands
26%verified pure — nothing but mushroom and a capsule shell
70 of 273
73%list a non-mushroom ingredient
194 of 264 readable labels
2.2%publish an openable lab proving 30%+ beta-glucans
4 of 178 brands
1product publishes an openable DNA species report
Solve Labs
One product holds all three.
Of 273, Solve Labs is the only one publishing an openable DNA species report
alongside a beta-glucan assay and a batch safety certificate.
How we did it
Where a marketplace listing hid the ingredient statement, we recovered
it from the brand’s own website — bringing 264 of 273
listings to a readable standard.
Every lab document was opened and read. Photos, badges,
spec sheets and marketing graphics did not count; broken links were graded down.
A figure was recorded only where the number sat directly against the
term it describes.
A clean ingredient statement is the seller’s own claim, recorded
as published — not independently verified here. Listings and lab documents change;
these findings describe them as of 15–16 August 2026. Prepared from a master
database of 273 listings, one row per product. Not medical advice; no statement evaluated
by the FDA or MHRA.
The 60-day guarantee
Give it time — 60 days, on us.
Chaga is a routine people judge over months, not mornings. So your first order carries a 60-day guarantee — long enough to actually find out.
Run the routine. One serving a day, any format — for up to 60 days from delivery.
Not for you? Email support with your order number. No forms, no interrogation.
Full refund — even opened. We’ll ask what didn’t work, because it helps us. The refund doesn’t depend on your answer.
Applies to your first order. Your statutory rights are unaffected.
Orders leave one of two warehouses — the United Kingdom or Poland —
whichever is closer to you.
DestinationShips fromTime
United KingdomUK3–5 working days
EuropePoland3–5 working days
Rest of worldUK or Poland5–10 working days
UK delivery is free on subscription, and on one-time orders
over £50.
Standard delivery, counted from your order, as shown at checkout (a faster UK option is offered there). Orders are dispatched within 1–2 working days. Times exclude weekends and public holidays and are estimates, not guarantees. Duties or import charges outside the UK and EU are the recipient’s responsibility.
MelaninPolyphenolsBetulin, betulinic acid
