LMNT vs Puresport (2026): Which Electrolyte Supplement Is Best for UK Runners? LMNT vs Puresport: the UK electrolyte price check
Same 1,000mg sodium. Puresport is £11.99 cheaper per box.
Puresport also adds more potassium and magnesium, includes calcium, and is Informed Sport Certified.
Published by Puresport. We make Ultra Electrolytes, so treat this as our case — but every price, formulation, and certification claim here was checked on June 8, 2026 against the brand and product pages, certification databases, and sports nutrition references linked at the foot of this page. Price and availability can change.
Before you spend premium money on a salty sachet, it is worth looking closely at what you are actually getting. LMNT is one of the most visible high-sodium electrolyte brands online, and in the UK it is commonly found through Healf rather than directly from LMNT. Puresport Ultra Electrolytes is a UK-made alternative built around the same headline sodium dose: 1,000mg per sachet.
That headline matters, but it is not the whole story. Electrolytes are not magic hydration dust, and not everyone needs a high-sodium drink every day. The strongest case for a product like this is usually long runs, heavy sweat sessions, hot conditions, endurance training, or situations where plain water is not replacing what you are losing through sweat.
With that out of the way, let's compare LMNT vs Puresport on formulation, price, UK availability, taste, testing, company policies, and who should choose which.
Puresport Ultra Electrolytes - Citrus Salt
Product Highlights
- Zero sugar electrolytes
- 1,000mg sodium performance dose
- Also includes potassium, magnesium and calcium
- Vegan, gluten free
- Informed Sport Certified and Made in the UK
Show more highlights
- Vegan, gluten free
- Informed Sport Certified and Made in the UK
Pros & Cons
Pros
- Same 1,000mg sodium headline dose as LMNT
- £11.99 cheaper per box (£33 vs £44.99 via Healf)
- 30% off on a flexible plan (£22.99)
- 30-day money-back guarantee
- More potassium and magnesium, plus added calcium
- Informed Sport Certified
- Great reviews on taste
- Reviewers report help with cramps, headaches, and post-run fatigue
- Sugar-free, vegan, and gluten-free
- Made in the UK
Cons
- A high-sodium product — though you can take half a sachet for a lower dose, and the sachets are easy to fold
- Less suited to people already on a high-sodium diet (e.g. lots of ultra-processed foods)
- A smaller UK brand, less globally recognised than LMNT
Bottom Line
LMNT Recharge Electrolytes - Citrus Salt
Product Highlights
- Zero sugar electrolytes
- 1,000mg sodium
- Also includes potassium and magnesium
- Vegan and gluten free
- Available in the UK through Healf at a mark-up price
Show more highlights
- Vegan and gluten free
- Available in the UK through Healf at a mark-up price
Pros & Cons
Pros
- Same 1,000mg sodium dose as Puresport
- Best-known global high-sodium electrolyte brand
- Strong, simple, well-trusted formula
- Publishes recent COAs and batch third-party testing
Cons
- About 36% more expensive in the UK (£44.99 vs £33)
- £1.50 per serving vs Puresport's £1.10
- Less potassium and magnesium, and no calcium listed
- Not found in the Informed Sport certified database
- Not sold directly in the UK — routed through Healf
Bottom Line
Medical disclaimer: This article is intended for educational and informational purposes only. It is not a substitute for medical advice. High-sodium electrolyte products are not appropriate for everyone. For health advice, contact a licensed healthcare provider.
LMNT vs Puresport
| Puresport Ultra Electrolytes | LMNT Recharge Electrolytes | |
|---|---|---|
| UK one-time price | £33.00 | £44.99 via Healf |
| One-time price per serving | £1.10 | £1.50 |
| Subscription price | £22.99 | £35.99 first order, then £40.49 if Healf's listed 20%/10% terms apply |
| Subscription price per serving | £0.77 | £1.20 first order, then £1.35 |
| Serving size | 1 sachet | 1 sachet |
| Servings per box | 30 | 30 |
| Sodium | 1,000mg | 1,000mg |
| Potassium | 250mg | 200mg |
| Magnesium | 100mg | 60mg |
| Calcium | 50mg | Not listed |
| Sweetener | Stevia | Steviol glycosides |
| Flavour researched | Citrus Salt | Citrus Salt |
| Third-party tested? | Informed Sport Certified | LMNT says every batch is third-party tested and recent COAs are posted |
| UK availability | Direct from Puresport | Through Healf and select UK distributors |
Quick Look: LMNT vs Puresport
Electrolytes are simple in theory and surprisingly easy to overpay for in practice. For endurance athletes, sodium is usually the headline mineral because it is the primary electrolyte lost in sweat. Potassium, magnesium, and calcium matter too, but the need depends on diet, sweat rate, session length, heat, and individual tolerance.
Both Puresport and LMNT land in the premium, high-sodium, sugar-free electrolyte category. Both are designed as single-serve sachets. Both are convenient. Both use stevia-family sweeteners. Both give you 1,000mg sodium per serving, which is the number that made LMNT famous in the first place.
The UK buying decision is where the comparison shifts. LMNT's official site lists a 30-count box at USD 45 and says drink mix ships to the US and Canada, with select distribution partners being tested in Australia and the UK. In practice, a UK shopper is often buying LMNT through Healf at £44.99. Puresport sells its comparable 30-sachet box directly in the UK at £33.00.
Who Should Buy Puresport
- UK runners and athletes who want a high-sodium electrolyte without paying the LMNT UK premium
- Anyone doing activity that involves heavy sweating
- Anyone who wants the 1,000mg performance dose
- Athletes who prefer Informed Sport Certified products
- People who want potassium, magnesium, and calcium in the same sachet
- Those who care about backing a UK-born brand over paying a US import markup
Who Should Buy LMNT
- Existing LMNT fans who know they like the flavour and formula
- People who want the best-known global high-sodium electrolyte brand
- Shoppers who value LMNT's US-based COA and quality-testing information
- Buyers happy to pay Healf's UK price
- People who prefer LMNT's broader flavour range, if available in the UK
Key Similarities Between LMNT and Puresport
- Both are high-sodium electrolyte sachets.
- Both provide 1,000mg sodium per serving.
- Both are sugar-free.
- Both are vegan-friendly and gluten-free according to their product pages.
- Both are single-serve powders designed to be mixed with water.
- Both use stevia-family sweeteners.
- Both are positioned for hydration, training, sweat loss, and active lifestyles.
Important Differences Between LMNT and Puresport
- Puresport costs £33.00 per 30 servings. LMNT costs £44.99 through Healf.
- Puresport costs £1.10 per serving one-time. LMNT costs £1.50 per serving one-time.
- Puresport includes 250mg potassium, 100mg magnesium, and 50mg calcium. LMNT includes 200mg potassium and 60mg magnesium, with no calcium listed.
- Puresport is Informed Sport Certified. LMNT says it batch-tests through third-party labs and publishes recent COAs, but it was not found in the Informed Sport database during research.
- Puresport is made in the UK. LMNT's official site says direct drink mix shipping is to the US and Canada, with select UK distribution partners.
Price Per Serving
Neither of these is the cheapest way to put sodium in water. You can make a basic electrolyte mix at home with salt and measured mineral powders. The reason to buy sachets is convenience, flavour, accuracy, and trust.
Between the two, Puresport is the clear UK value winner.
Puresport Ultra Electrolytes costs £33.00 for 30 sachets, or £1.10 per serving. On subscription, the product page lists £22.99, or £0.77 per serving.
LMNT through Healf costs £44.99 for 30 sachets, or £1.50 per serving. Healf lists subscription terms as 20% off the first order and 10% off subsequent orders. That makes the first subscription box about £35.99, or £1.20 per serving, then about £40.49, or £1.35 per serving.
Put simply: LMNT is about 36% more expensive than Puresport on a one-time UK purchase. Even after Healf's first-order subscription discount, LMNT still comes in above Puresport's subscription price.
Formulation
Both products start with the same headline dose: 1,000mg sodium.
LMNT keeps the formula intentionally simple: 1,000mg sodium, 200mg potassium, and 60mg magnesium.
Puresport goes a little broader: 1,000mg sodium, 250mg potassium, 100mg magnesium, and 50mg calcium.
That means Puresport is not just a cheaper match on sodium. It gives you 25% more potassium, 67% more magnesium, and adds calcium. Whether that matters depends on your diet and use case, but as a label-to-label comparison, Puresport gives more total listed electrolytes.
The ingredient forms differ slightly too. LMNT uses sodium chloride, potassium chloride, and magnesium malate, with citric acid, natural lemon and lime flavours, and steviol glycosides. Puresport lists sodium chloride, potassium chloride, magnesium citrate, calcium, malic acid, stevia, and natural citrus flavourings.
Third-Party Testing
This is one of the biggest non-price differences.
Puresport Ultra Electrolytes is listed in the Informed Sport database as a certified electrolyte powder. Informed Sport is a meaningful certification for athletes because it screens products and batches for substances banned in sport. If you are a tested athlete, this is a material advantage.
That bar is the reassuring part for everyone else. Informed Sport screens certified products and batches for substances banned in sport, so a formula clean enough for elite athletes like Amy is comfortably clean enough for a casual runner, whether you are chasing a personal best or just your next parkrun.
LMNT also takes quality seriously, but in a different way. LMNT's Quality and Testing page says every batch is third-party tested for label claims, microbial contaminants, and heavy metals, and that recent certificates of analysis are posted. That is a useful transparency signal.
The distinction is certification type. A COA and batch testing are not the same as a recognised sport certification. During research, Puresport was found in the Informed Sport database. LMNT was not.
Company Policies
Puresport offers free UK shipping on subscriptions and orders over £50. The product page also states a 30-day performance guarantee, unopened products can be returned within 21 days, and subscriptions reduce the electrolyte box from £33.00 to £22.99.
Healf lists strong buyer-friendly policies for LMNT: 20% off the first subscription order, 10% off subsequent orders, free delivery on subscriptions, a free sample each month, pause or cancel anytime, and 365-day free returns. Healf also states the product is in stock with next-day delivery available.
So LMNT's UK buying experience is not weak. Healf is giving shoppers convenience and reassuring policies. The tradeoff is price.
LMNT vs Puresport: Final Thoughts
Both LMNT and Puresport are credible high-sodium electrolyte products. Both use 1,000mg sodium per sachet. Both are sugar-free and easy to use. Both make sense for sweaty, long, hot, or demanding sessions where plain water alone is not cutting it.
The better UK buy is Puresport.
- Puresport and LMNT both deliver 1,000mg sodium per sachet.
- Puresport costs £1.10 per serving one-time, compared with LMNT's £1.50 through Healf.
- Puresport adds more potassium and magnesium than LMNT, plus calcium.
- Puresport is Informed Sport Certified. LMNT provides third-party testing and COA transparency, but no Informed Sport listing was found.
- LMNT is a strong product, but UK shoppers are paying a premium for access through Healf.
The Puresport Starter Kit
- Save £40 on running essentials
- Includes electrolytes, gels, magnesium + more
LMNT vs Puresport: FAQs
Is Puresport better than LMNT?
For UK shoppers, Puresport is the better value. It matches LMNT's 1,000mg sodium dose, adds more potassium and magnesium, includes calcium, costs less per serving, and is Informed Sport Certified.
Is LMNT available in the UK?
Yes, but not in the same way it is available in the US. LMNT's official site says its drink mix ships to the US and Canada and that the brand is testing select distribution partners in Australia and the UK. In the UK, LMNT Citrus Salt is available through Healf.
Why is LMNT so expensive in the UK?
The product itself is priced at USD 45 for 30 sticks on LMNT's official US site. In the UK, Healf lists LMNT Citrus Salt at £44.99 for 30 sachets. UK buyers are effectively paying a premium for distributor access, local fulfilment, and Healf's retail experience.
Does Puresport have the same sodium as LMNT?
Yes. Puresport Ultra Electrolytes and LMNT Citrus Salt both provide 1,000mg sodium per sachet.
Which is better for tested athletes?
Puresport has the clearer answer because Ultra Electrolytes is Informed Sport Certified. LMNT says it conducts third-party batch testing and posts COAs, but Informed Sport certification was not found during this research.
These statements have not been evaluated by the Food and Drug Administration or the UK Medicines and Healthcare products Regulatory Agency. This product is not intended to diagnose, treat, cure, or prevent any disease.
References
- Puresport. Ultra Electrolytes Citrus Salt product page. https://puresport.co/products/ultra-electrolytes-citrus-salt
- Healf. LMNT Recharge Electrolytes Citrus Salt product page. https://healf.com/en-uk/products/lmnt-recharge-electrolytes-citrus-salt
- LMNT. Zero-Sugar Electrolytes product page. https://drinklmnt.com/products/lmnt-recharge-electrolyte-drink
- LMNT. Quality and Testing. https://science.drinklmnt.com/quality-testing
- Informed Sport. Puresport Ultra Electrolytes certified product listing. https://sport.wetestyoutrust.com/supplement-search/ultra-electrolytes
- American College of Sports Medicine. Exercise and Fluid Replacement. PubMed. https://pubmed.ncbi.nlm.nih.gov/17277604/
- NHS. Salt in your diet. https://www.nhs.uk/live-well/eat-well/food-types/salt-in-your-diet/