Updated October 14, 2026 · ThriveCue Editorial Team
KoRo vs Nuun
KoRo vs Nuun: the differences
| Compare |  KoRo |  Nuun |
|---|---|---|
| Price from | €19.50 | $7.49 |
| Price per serving | €0.010 | $0.75 |
| Third-party tested | No | YesHas it |
| Certifications | Organic | Informed sport, B corp |
| Money-back period | 14 days | 60 daysHigher |
| Markets | DE | US, CA |
| Subscription discount | Not confirmed | 15% |
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Key differences
- Nuun scores higher overall: 9.5 vs 9.1.
- Third-party tested: only Nuun.
- Money-back period is higher at Nuun: 60 days vs 14 days.
- Support channels: only Nuun offers Community.
- Certifications: only KoRo offers Organic.
- Certifications: only Nuun offers Informed sport, B corp.
- Products: only KoRo offers Omega 3, Probiotics, Greens.
- Products: only Nuun offers Electrolytes, Multivitamins, Nootropics.
- Diets: only KoRo offers Vegetarian.
- Diets: only Nuun offers Gluten free, Kosher, Keto.
Our verdict on each
KoRo
KoRo suits adults inside Germany who want a broad supplement range at a low cost per serving rather than a plan or a subscription. The money back window of 14 days and the DE reach keep the commitment small, though products are not third-party tested and the listed certification is organic.
Nuun
Nuun suits readers who want electrolyte tablets bought as they need them, with an entry price of $7.49 on Nuun Sport and $0.75 a serving. Vitamins-and-multivitamins rivals that bundle a monthly plan charge on delivery rather than letting you stop, so Nuun fits anyone who buys by the box.
Score breakdown
| Area | KoRo | Nuun |
|---|---|---|
| Cost | 9.7HigherPrice from ranks 44 of 157 brands, while a serving cost of €0.01 ranks 1 of 121 on cost. | 9.6Entry on Nuun Sport at $7.49, a serving at $0.75, and an entry rank of 11 out of 157. |
| Offer | 8.6Product types cover vitamins minerals, omega 3 and probiotics, diets cover vegan and vegetarian and flavors number 4 flavours. | 9.4HigherSubscribers save 15% on every order, and the money back window runs 60 days, so a trial box carries little risk. |
| Trust | 8.8Third-party tested is no, the listed certification is organic, and support runs on email, phone and help centre from a company based in DE. | 9.7HigherEvery product is third-party tested, and the range carries the informed sport and b corp certifications, so batches are checked outside the company. |
What each covers
| Certifications | KoRo | Nuun |
|---|---|---|
| Informed sport | No | Yes |
| Organic | Yes | No |
| B corp | No | Yes |
Where each is licensed and available
| Country | KoRo | Nuun |
|---|---|---|
| Headquarters | Germany | United States |
Positions in our rankings
| Ranking | KoRo | Nuun |
|---|---|---|
| Vitamins and multivitamins | 13 of 362 | 14 of 362 |
Every fact side by side
| Fact | KoRo | Nuun |
|---|---|---|
| Products | Vitamins minerals, Omega 3, Probiotics, Greens, Collagen | Electrolytes, Multivitamins, Vitamins minerals, Nootropics |
| Diets | Vegan, Vegetarian | Vegan, Gluten free, Kosher, Keto |
| Legal entity | KoRo Handels GmbH | Nuun & Company, Inc. |
| Headquarters | Germany | United States |
| Support channels | Email, Phone, Help centre | Email, Phone, Help centre, CommunityCovers more |
Sports nutrition
| Fact | KoRo | Nuun |
|---|---|---|
| Protein per serving (g) | Not confirmed | 0 |
| Flavours (flavours) | 4 | 10Higher |
Where each stands against the rest
| Fact | KoRo | Nuun | Median |
|---|---|---|---|
| Subscription discount | Not confirmed | 15%at the median | 15% |
| Money-back period | 14 daysbelow the median | 60 daysabove the median | 30 days |
Median across 167 listed brands.
Pros and cons
KoRo
Pros
- A serving cost of €0.01 makes daily use inexpensive, and the entry price of €19.50 keeps a first order small.
- Range spans vitamins minerals, omega 3 and probiotics, wider than the vitamins and minerals focus at ProSolution Plus and TestRX.
- Products suit vegan and vegetarian diets, and the listed certification is organic.
Cons
- Third-party tested is no, and the listed certification is organic, so an independent potency check sits outside what is stated.
- Price from ranks 44 of 157 brands, so the entry price is not the cheapest in the comparison.
- The range covers DE only, which is narrower than a multi-line pharmacy such as DocMorris.
Nuun
Pros
- Entry price of $7.49 on Nuun Sport puts the brand at position 11 of the 157 brands tracked on price from.
- A serving of Nuun Sport costs $0.75, which lands at position 42 of the 121 brands compared on cost per serving.
- Every product is third-party tested, against 84.5% of brands in the vitamins-and-multivitamins category that report the same.
Cons
- Where it runs is narrow: the range is built for US and CA, so readers in the UK are better served by DocMorris, which covers multivitamins, vitamins minerals and omega 3.
- Protein per serving sits at 0 g, well under the 24 median across the brands compared, so anyone buying this alongside a pre-workout still needs a separate protein source.
- The range is built on electrolytes, multivitamins and vitamins minerals rather than on vitamins alone, and TestRX stays closer to vitamins minerals for readers shopping purely for a daily vitamin.
Who each suits
KoRo
Who it suits
- Adults in DE who order one-off supplements rather than a plan
- Vegan and vegetarian shoppers, since the diets listed are vegan and vegetarian
- People who weigh cost per serving above all, given the rank of 1
Who should look elsewhere
- Shoppers who require third-party tested products, since third-party tested is no
- Anyone outside DE, where the range does not reach
- Buyers chasing sleep, stress and nootropic lines, listed for DocMorris in multivitamins, vitamins minerals and omega 3 but not part of vitamins minerals, omega 3 and probiotics
Nuun
Who it suits
- Readers after electrolyte tablets rather than capsules, since the range covers electrolytes, multivitamins and vitamins minerals.
- Anyone in the markets Nuun serves, listed as US and CA.
- Shoppers on restricted diets, given the range is labelled for vegan, gluten free and kosher.
Who should look elsewhere
- Readers in the UK, who should look at DocMorris and its own range of multivitamins, vitamins minerals and omega 3.
- Anyone shopping only for a daily vitamin, since ProSolution Plus sells vitamins minerals and TestRX vitamins minerals alone.
Current offers
KoRo
Current offer
Discount code
5% off next order for newsletter signup: 5%
Sign up for the KoRo newsletter by email; discount applies to the next order
Source, checked September 30, 2026
Nuun
Current offer
Discount code
20% off your first order: 20%
Sign up for the newsletter and a 20% off discount code is sent to the inbox
Source, checked September 30, 2026
Country by country
| Country | KoRo | Nuun |
|---|---|---|
| Canada | No | Yes |
| United States | No | Yes |
Questions about each
KoRo
How much does KoRo cost?+
Prices start at €19.50, and the cost per serving is €0.01. The first figure matters for a single purchase, the second for anyone taking a product every day. The price shown is the one you pay, so no second bill arrives later.
Is KoRo cheaper than rival supplement brands?+
It depends which measure you use. On price from, KoRo ranks 44 of 157 brands, so the entry price sits mid-table. On price per serving it ranks 1 of 121 brands, the stronger result of the two for a daily user.
Nuun
What does Nuun cost?+
The entry point is $7.49 on the Nuun Sport range, and subscriptions take 15% off that price. There is no membership fee attached, and the amount you see at entry is the amount you pay for the box you order next.
What is the cost per serving?+
A serving of Nuun Sport works out at $0.75, which places the brand at position 42 of the 121 brands compared on that measure. If you take more than a tablet a day, the cost is worth multiplying out before you commit.