Most hydration sachets are sugar with a pinch of salt. We ranked 22 UK electrolyte brands on the four things that decide it - ingredient count, whether the salt source is tested for heavy metals, what sweetens it, and how much sugar comes along.
Table of Contents
Some of the links in this article are affiliate links, which help fund our independent review work at no extra cost to you. Every recommendation is based on hands-on testing through The Editor Lab methodology. No brand pays to appear, and no placement is guaranteed.
REPOWR RAW is the best electrolyte sold in the UK on formulation purity, ahead of Veloforte and LMNT. Twenty-two brands are ranked below on the same four things every time: how many ingredients are in the tub, whether the salt source is named and tested for heavy metals, what sweetens it, and how much sugar rides along for the trip. That is a different test to the one most best electrolytes UK guides run, which is taste and sodium dose and not much else. Ranked on formulation instead, the results move around more than you would expect.
I run reverse osmosis water through remineralisation and an alkaline ionising system at home, because stripped water and a badly formulated electrolyte sachet are the same problem wearing different labels. Three of the products below are ones I drink myself. The rest are scored on published formulation data and the reviews of the people who bought them, and you will see exactly which is which.
“Ranked on ingredient count, salt source, sweetener and published heavy-metal testing, not on taste or sodium dose alone. Ordered by the formulation, not by which brand pays us a commission.”
Editor's Note
I judge an electrolyte on the same four things every time, in this order: how pure the formulation is, since fewer ingredients wins here, how good the raw salt is, how much sugar and additive baggage rides along with it, and who it is for. A fifth, smaller thing matters too: how easily the sachet opens, the one criterion nobody else measures and the one you notice every morning. REPOWR, SULT and LMNT are the three products on this list I drink. Everything else here is ranked on the brand's own published formulation data, independently checked, and on the reviews of the people who bought it, never on my own use. At home I run remineralised, ionised water through the same filtration logic: stripped water and an under-formulated electrolyte sachet are the same problem in different packaging.
How We Ranked These: The Four Things That Matter Most
Every guide to the best electrolytes UK ranks brands on taste and sodium dose, tested once by a staff writer, then leaves it there. That misses the question you have probably already worked out for yourself: does it matter that a product has fifteen ingredients, and if it does, why does nobody address it?
Ingredient count comes first: fewer is better here, since a three-ingredient formulation has three places for something to go wrong and a twenty-four-ingredient one has twenty-four, whatever the brand tells you. Published heavy-metal testing weighs heavily too, because a brand naming a salt source is not the same as a brand testing it, more on that below.
The sweetener matters just as much: no sweetener beats stevia or monk fruit, and both beat sucralose, the single variable that does most to separate the top of this list from the bottom. Sugar load counts against a brand regardless of what else it gets right, since zero added sugar is the baseline here. Whether the salt source is named matters less than the marketing around it suggests, as the section below on what nobody tests for shows you.
This produces a ranking order you will not have seen elsewhere. Two of the top four brands here carry no affiliate relationship with Balance Journal at all, the plainest evidence that this list runs on the formulation, not the commission. REPOWR sits first because it does the least, on purpose: three ingredients, no sweetener, a named salt with a stated purity claim. Veloforte is second on a five-ingredient, whole-food formulation with no added sugar. LMNT is third for something none of the other twenty-one do consistently: it tests every single lot for heavy metals and publishes the certificate.
The 22 Best Electrolytes in the UK, Ranked
1. REPOWR - Best Overall / Cleanest Formulation
Three ingredients, no sweetener, and a named salt source with a stated purity claim put REPOWR RAW top of this list. Oryx Desert Salt is the brand's own purity story, not an independently published lab result. I rate REPOWR highest of the three I drink for raw salt quality, and the sachet tears clean. Judge.me: 1,569 reviews at 4.84, saltiness and price the only complaints. Flavoured REPOWR sachets, blood orange and peach among them, trade that zero-sweetener spec for stevia and eight ingredients; RAW earns the top spot. Buy RAW if purity is your priority.
“REPOWR does the least, on purpose, and that is exactly why it is first.”
Veloforte's Solo sachet runs five ingredients, stevia-sweetened, with no sugar added beyond what the whole-food carbohydrate sources bring naturally. Pink Himalayan salt is the named source, though like most of this list, it is not independently tested. Okendo records 540 reviews at 4.7, with reviewers praising the natural taste against what one called "fake fizz", and price the main complaint at £1.99 per serving, the highest in this guide. One reviewer on Veloforte's own site called the sachets pocketable enough to carry, which matters if you top up mid-run.
“Whole-food formulation costs more. Here, you can taste where the money went.”
LMNT is the only brand on this list that tests every single lot for heavy metals and publishes the certificate. Six ingredients, stevia, zero sugar, 1,000mg sodium. I like LMNT for being straightforwardly salty rather than apologising for it. One catch: LMNT does not sell direct to the UK, its own FAQ says it is still testing UK partners, and the route runs through Healf at £1.50 per serving, second-highest here. Full review: our LMNT review. Order via Amazon UK if you do not want to wait on Healf stock.
“The most rigorously tested product on this list is also the hardest one to buy here.”
Only two products on this list use no sweetener at all, and Ancient + Brave is one of them. Eight ingredients, 2g natural sugar, Himalayan salt with an unpublished purity claim. Site reviews sit at 4.8 from 446, Amazon 4.2 from 236: taste the praise, dissolving the complaint. £1.07 per serving, mid-table on price. It suits you if any sweetener at all is a dealbreaker.
“If sweetener of any kind is the line for you, this is one of exactly two brands on the right side of it.”
5. Cadence - Best Short Ingredient List on the High Street
Cadence keeps its panel to six ingredients, and its product page disagrees with its retailer about whether it contains sugar. Myprotein's nutrition panel states 1.5g of sugar per serving; Cadence's own copy on the same page calls the product sugar-free. Both cannot be right, and this guide is not picking a side. Yotpo records 826 reviews at 4.8, with the citrus flavour and convenience the main praise, price the main complaint, at £0.87 to £1.17 depending on the pack. You can find it through Myprotein's own affiliate programme.
“A brand and its own retailer disagreeing about sugar content is not a good look, whichever one is right.”
Puresport carries 1,000mg of sodium in seven ingredients, stevia-sweetened, with Informed Sport certification rather than published heavy-metal testing. It sits in four of the seven competitor guides measured for this article. Loox 4.8 from 525, Trustpilot 4.7 from 2,571: salty-sweet taste the praise, the powder clumping in the sachet the complaint. Expect to fight the sachet if clumping bothers you.
“High sodium, high review count, and a sachet that some buyers report fighting with before they even open it.”
7. Precision PH 1000 - Best for Endurance and Cramp
Precision Fuel & Hydration's PH 1000 carries eight ingredients, stevia, and the same 1,000mg sodium dose as Puresport, Informed Sport certified rather than independently purity-tested. Site reviews sit at 4.9 from 2,191, Amazon 4.7 from 221, both crediting it for cramp prevention over long efforts. The gripe: some reviewers note you need two tablets for the full dose. Full review: our Precision Hydration review.
“Built for cramp control, reviewed for cramp control, and its own users say it delivers on exactly that claim.”
Nine ingredients and a third-party certificate of analysis put Heights among the three brands here that publish independent testing, alongside LMNT and DR.VEGAN. Himalayan pink sea salt named, plus citicoline and bamboo extract for a focus angle most of this category skips. Site reviews 4.4 from 185, Trustpilot 4.6 from 3,013: taste and an energy lift the praise, no complaint standing out. £1.21/serving. Worth the extra pound if focus matters to you as much as hydration.
“Tests what it claims and adds a genuine differentiator most of this list does not even try.”
The SULT sachet tears clean, second only to REPOWR of the ones I have opened myself. Ten ingredients, stevia, pink Himalayan salt, no published heavy-metal test found. I rate it sweeter and less salty than REPOWR, and the peach flavour specifically as genuinely nice. Okendo records 461 reviews at 4.9, and every single one of them, at the time of writing, was five stars. £1.03 per serving, stocked in Boots as well as direct. If an easy sachet matters to your morning routine, this is the one.
“Sweeter, easier to open, and its reviewers have not left a single bad rating yet.”
Zooki's Hydration+ runs ten ingredients, stevia-sweetened, with a claimed zero sugar and pink Himalayan salt as the named source, though no independent testing was found. Yotpo reviews range from 4.8 across 333 to 455 respondents depending on the pack, and its Holland & Barrett listing sits lower at 3.9 to 4.3 from 321 reviews, with taste and a clean finish the recurring praise and the sweetener the only mild complaint. Dissolving is clean, no clumping reported. £1.33 per serving, Awin approval pending. A safe pick if you want something inoffensive rather than exceptional.
“Nothing wrong with it, and nothing that separates it from the brands ranked just above it either.”
Free Soul Hydrate packs 1,000mg of sodium into ten ingredients at £0.87 per serving, among the cheapest high-sodium options on this list. Stevia-sweetened, zero sugar, no salt source named and no independent testing found. Loox reviews sit at 4.4 from 335 respondents, Amazon UK close behind at 4.3 from 792, with fast-acting hydration the recurring praise. Saltiness is the dominant complaint by a distance, common enough that the brand's own customer service team has a scripted reply suggesting you dilute it further, confirming the trade-off.
“A high sodium dose at a low price, if you can get past how salty it tastes.”
Monk fruit, not stevia, is why DR.VEGAN sits this high despite an eleven-ingredient list, the longest of anything ranked above it. Pink Himalayan salt is named, and the brand states third-party batch testing, one of only three on this list to claim any independent testing at all. Trustpilot's brand page runs 6,136 reviews at 4.5, with the monk-fruit sweetener the specific, repeated reason reviewers give for buying it. Dissolving is the weak point: sediment and a product that does not fully dissolve is the dominant complaint. £1.16 per serving, and the highest published commission of any brand in this guide, at 15%. Shake it well before you drink it, given the dissolving complaints.
“The only monk-fruit option on this list, and its buyers specifically say that is why they chose it.”
13. ViDrate - Best for People Who Hate Salty Drinks
What do you do with a brand that will not publish a nutrition panel anywhere? Rank it on what is missing. ViDrate carries twelve ingredients, stevia-sweetened, zero sugar, and three colourings, but no sodium figure appears anywhere checked for this guide. A UK forum thread ranking on this exact keyword flagged ViDrate's sodium as too low to help genuine POTS symptoms, which is consistent with a brand that avoids the salty taste altogether. Trustpilot runs 4.2 from 4,134 reviews, Amazon 4.3 from 1,549, with no salty aftertaste the main praise.
“The gentlest-tasting product on this list, and the one with the least published proof behind it.”
Spacegoods' Hydro Dust runs fifteen ingredients, stevia-sweetened, natural sugar only, and Himalayan pink salt as the named source, positioned around an energy angle rather than pure hydration. Amazon UK reviews average 4.1 from 110 respondents, with energy and a clump-free mix the recurring praise, and a "chemical" aftertaste the recurring complaint from a minority of reviewers. Dissolving is clean here too. £1.13 per serving, through an Awin programme Balance Journal has already joined. Worth trying if you want an energy lift alongside your electrolytes.
“Positioned for energy rather than purity, and the ingredient count reflects that trade-off.”
Innermost's own five-star reviewer count is eleven, too small a sample to trust either way. The Hydrate Blend runs sixteen ingredients, stevia, zero sugar, Himalayan sea salt, and a wide mineral spread across sodium, potassium, magnesium and calcium. Judge.me shows a perfect 5.0 across those eleven reviews, no aftertaste the specific praise. One reported issue worth flagging: at least one Trustpilot reviewer described the powder arriving hardened and crystallised, needing scraping out. £1.10 per serving, Awin approval pending. Check your sachet before you tear it, given that one hardened-powder report.
“A genuinely broad mineral profile, tested by too few reviewers to call it settled either way.”
16. Punchy - Best Tasting for Non-Drinkers of Salt
If you cannot stand the taste of salt, Punchy is built for you: Okendo records 904 reviews at 4.8, tasting like fruit juice the top praise. Sixteen ingredients, stevia plus real sugar at 1.3g, Himalayan pink salt named. One figure on Punchy's own label is worth a second look before you take it as fact: it states 375mg of magnesium per serving, well above every other brand in this guide, high enough against typical dosing that it is worth checking your own pack. £1.35 per serving.
“Tastes the least like an electrolyte drink of anything on this list, which is precisely the point for some buyers.”
17. Humantra - Best Flavour Range, Longest Ingredient List
Nineteen ingredients, including silicon dioxide, sit inside Humantra, the UK's most-recommended brand, appearing in six of the seven competitor guides measured for this article. Himalayan pink salt named, stevia, zero sugar, Informed Sport certified rather than independently purity-tested. Site widget 4.7 from 1,836, Amazon 4.5 from 538: balanced taste the praise, "overpriced" the complaint, £1.40/serving. Being the brand every other guide reaches for first, and being the most simply formulated brand in this category, turn out to be two different things. Worth it to you only if flavour range outweighs the ingredient count.
“The most recommended name in the category, and the longest ingredient list ranked above it. This reflects the formulation, not the popularity.”
18. Liquid I.V. - Best for Illness and Hangover, If You Accept the Sugar
Liquid I.V. carries the highest sugar load outside the bottom four sucralose brands, 6g per serving from added glucose and stevia together, in nine ingredients. Its own reviewers do not seem to mind: Amazon UK shows 4.4 from 219 reviews, specifically crediting it for hangover recovery, travel and illness, exactly where a sugar hit alongside sodium helps. One reviewer with arthritic fingers specifically praised how easy the sachets are to rip open. If your priority is a clean daily formulation rather than a rescue remedy, this is not that product.
“Not the cleanest formulation here, and its own reviewers do not appear to care, because it is not trying to be.”
Is a tablet with 0.2g sugar and sucralose clean? Not by this list's framework, but SiS GO Hydro is cheap and appears in five of the seven competitor guides measured for this article. Six ingredients, riboflavin for colour, Informed Sport certified. Its Trustpilot page carries 65,659 reviews at 4.3, the largest review base here by far: fast dissolving and cramp control the recurring praise, "tastes fake" the complaint. Full review: our SiS GO Hydro review. Cheap enough to stock up on if budget matters more to you than the sweetener.
“Sucralose is the reason it sits here and not higher, whatever 65,000 reviewers think of the taste.”
Healthspan Elite's own anti-caking agent, polyethylene glycol, is not something you will see on any of the twenty-one other panels ranked here, and it sits alongside sorbitol and two colourings in a twelve-ingredient, sucralose-sweetened formulation. It appears in four of the seven competitor guides measured for this article. Site reviews average 4.9 from 84 respondents, Amazon 4.4 from 66, praising the lack of aftertaste and the value, at £0.42 per serving, the second-cheapest in this whole guide. Informed Sport certified, not independently purity-tested.
“Cheap, widely stocked, and carrying an additive list that puts it near the bottom of this ranking regardless.”
21. NutritionX Hydra 10 - Carbohydrate Sports Drink, Not a Daily Electrolyte
Training for three hours and need carbohydrate alongside sodium? NutritionX Hydra 10 does that job: 8.47g sugar per serving, the highest here, in fifteen ingredients including xanthan gum and beetroot red. As a daily electrolyte, it does not belong in the same conversation as the top half of this list, and is included as the clearest example of a sports drink marketed as an electrolyte. Reviews.io shows 4.91 from 77 respondents, praising taste and cramp relief. No affiliate route is confirmed for this brand. It will fuel you through the session, just not your daily glass of water.
“A real product for a real use case, endurance fuelling, and the wrong answer to what most readers of this guide are asking.”
22. Phizz 3-in-1 - Effervescent Multivitamin, Not an Electrolyte
Twenty-four ingredients, sucralose, and glucose as the first ingredient put Phizz 3-in-1 last, before its own Trustpilot reviewers describe the tablets arriving as dust: "all three tube contents crumble to dust and chunks of tablet. Messy and frustrating powder all over the place." Site reviews 4.8 from 538, Trustpilot lower at 3.5 from 496: salty aftertaste and nausea among the complaints. £0.40 per serving, the cheapest here. Reads closer to a multivitamin than an electrolyte drink. Skip it if a clean daily electrolyte is what you are after.
“The longest ingredient list, the lowest independent rating, and tablets that some buyers report arriving broken. Last for a reason.”
'Cleanest electrolytes' gets searched 390 times a month in the UK, and not one of the seven major guides measured for this article gives you a dedicated answer. Clean, here, means three things stacked together: how many ingredients, what sweetens it, and how much sugar comes along.
On ingredient count, REPOWR RAW leads at three, Veloforte at five, Ancient + Brave at eight, so check the panel yourself before you assume a big name means a short list. At the other end, Phizz runs twenty-four and Humantra, the single most-recommended brand across the seven competitor guides measured for this article, runs nineteen. Being widely recommended and being simply formulated are not the same thing.
On sweetener, the order that matters to you is: no sweetener, then stevia or monk fruit, then sucralose. REPOWR RAW and Ancient + Brave use none at all. DR.VEGAN is the only one of the twenty-two to use monk fruit instead of stevia, and its reviewers call this out as a reason they buy it. Four brands, SiS GO Hydro, Healthspan Elite, NutritionX Hydra 10 and Phizz, use sucralose, and all four sit at the bottom because of it, not despite everything else being equal.
On sugar, most of this category has moved to zero added sugar already, so check yours if it has not. Liquid I.V. is the exception among mid-table brands at 6g per serving, and NutritionX Hydra 10 carries the highest sugar load in the set at 8.47g, why it sits here as a sports drink rather than a daily electrolyte. Our electrolyte drink ingredients guide breaks down what every panel entry does.
Best Electrolyte for Your Situation
Everyday use. REPOWR RAW or SULT cover it: minimal ingredients, easy sachets, no sugar. SULT's reviewers call it a daily staple, and its review count is entirely five-star so far. Our do you need electrolytes every day guide covers whether you need one at all.
Fasting and keto. REPOWR RAW and Ancient + Brave carry no sweetener of any kind, the safest choice if your protocol is strict about it, and both are zero calorie. The same logic applies to the best electrolytes for keto.
Running and endurance. Precision PH 1000 and Puresport are built for you if that is your situation: 1,000mg sodium, Informed Sport certified, reviewed specifically for cramp control over long efforts. Our best electrolytes for athletes guide goes deeper on dosing.
Hangover. Liquid I.V. is the pick, not the cleanest formulation here since it carries the highest sugar load outside the bottom four, but its own reviewers specifically credit it for getting you through a hangover or a long flight. See our electrolytes vs sports drinks guide for the wider comparison.
Women and pregnancy. Sodium and mineral needs do not differ by formulation choice, so the same criteria above apply to you. Pregnancy is worth flagging separately: needs shift, and a GP or midwife should confirm any product before you add it to a pregnancy routine, not this guide.
High sweat and medical dosing. If you sweat heavily or manage a condition like POTS, check the milligram figure before the brand name. A community thread ranking on this keyword flagged ViDrate's sodium as too low to help POTS symptoms. Puresport, LMNT, Free Soul and Precision all carry 1,000mg, the highest here. Not medical advice: talk to a GP about dosing a real condition, and our signs of electrolyte imbalance guide is a starting point, not a diagnosis.
GLP-1 medication. If you manage hydration alongside a GLP-1 like Mounjaro, the same high-sodium logic applies, since appetite suppression often means drinking less. See our electrolytes on Mounjaro guide.
Powder, Tablet or Sachet: Which Format
Twenty of the twenty-two products here come as a powder sachet you tear and stir into water. Two do not: SiS GO Hydro and Phizz 3-in-1 are effervescent tablets that dissolve in a glass instead.
Format decides more of your daily experience than the ingredient panel does, and nobody else ranking electrolytes seems to test it. REPOWR's sachet tears clean, by my own hand, and SULT's is nearly as good. Veloforte's own reviewers call the sachet size pocketable enough to carry. At the other end, Puresport's reviewers report the powder clumping inside the sachet from day one, Innermost's arrived hardened and crystallised in at least one reported case, and Phizz's tablets crumble to dust in the tube before they even reach the glass, according to its own Trustpilot reviews.
If you want to build your own instead of buying a branded sachet at all, our DIY electrolyte drink guide covers the ratios you need.
What Nobody Tests For
Ten of the twenty-two brands here lead with pink Himalayan salt as their purity story. The research does not support that as a purity credential on its own, whatever the label tells you.
Di Salvo and colleagues, writing in Toxics in 2023, analysed ten gourmet unrefined salts on the Italian market: lead ran 5.24 to 9.24 milligrams per kilogram, and in the study's own words, lead exceeded the maximum level in every single sample, against an EU ceiling of 2.0mg/kg for unrefined salt. Separately, Fayet-Moore and colleagues, in Foods in 2020, tested thirty-one pink salt samples in Australia. One of them, the only Peruvian sample, came in at 2.59mg/kg, 130 times higher than the iodised control. One sample out of thirty-one, not all thirty-one. Read the studies: Toxics, 2023 and Foods, 2020.
Naming a salt is not testing a salt, so do not let a brand tell you otherwise. Only three of the twenty-two brands here publish anything resembling independent purity testing: LMNT tests every single lot and publishes the certificate, Heights publishes third-party certificates of analysis, DR.VEGAN third-party batch testing. Everyone else offers Informed Sport certification or nothing at all.
Informed Sport is not a purity test, and its own site says so once you read it: it screens for banned substances in elite sport, using ISO-accredited anti-doping methods, and tests every batch before release. Heavy metals, PFAS and general contaminants appear nowhere in that scope. Eight brands here cite it as their testing credential. None of the eight test for what this section covers. Read it yourself: Informed Sport, about page.
One more data point, relevant because it explains why a well-known brand from the previous version of this page is not on this one, and worth knowing if PFAS concerns you: Mamavation tested 40 electrolyte products from 30 brands for PFAS with an EPA-certified lab in 2023. Nine came back with detectable fluorine. Nuun Hydration Sport Tropical measured 18 parts per million and has been dropped from this roster; two other Nuun lots Mamavation tested in the same investigation, Hydration Sport Tablet Fruit Punch and Hydration Sport Tablet Tropical, came back non-detect at the report's 10 ppm threshold. Full report: Mamavation, 2023.
Full Comparison Table
Every figure above, in one table, dated 4 September 2026.
Brand
Ingredients
Sweetener
Sugar
Salt Source
HM Testing
Price/Serving
Format
REPOWR RAW
3
None
0g
Oryx Desert Salt (brand claim)
Claim only
Not published
Powder sachet
Veloforte Solo
5
Stevia
0g added
Pink Himalayan
None
£1.99
Powder sachet
LMNT
6
Stevia
0g
Not named
Per-lot COA
£1.50
Powder sachet
Ancient + Brave
8
None
2g natural
Himalayan (brand claim)
None
£1.07
Powder sachet
Cadence Core
6
Stevia
1.5g (disputed)
Not named
Informed Sport only
£0.87-1.17
Powder sachet
Puresport Ultra
7
Stevia
0g
Not named
Informed Sport only
£1.10
Powder sachet
Precision PH 1000
8
Stevia
0g
Not named
Informed Sport only
£1.37
Powder sachet
Heights Hydrate+
9
Stevia
0g
Himalayan pink sea salt
Third-party COA
£1.21
Powder sachet
SULT
10
Stevia
0g
Pink Himalayan
None found
£1.03
Powder sachet
Zooki Hydration+
10
Stevia
0g claimed
Pink Himalayan
None
£1.33
Powder sachet
Free Soul Hydrate
10
Stevia
0g
Not named
None
£0.87
Powder sachet
DR.VEGAN Hydrate+
11
Monk fruit
0g
Pink Himalayan
3rd-party batch tested
£1.16
Powder sachet
ViDrate
12
Stevia
0g
Not named
None
Not published
Powder sachet
Spacegoods Hydro Dust
15
Stevia
Natural only
Himalayan pink
None
£1.13
Powder sachet
Innermost The Hydrate Blend
16
Stevia
0g
Himalayan sea salt
None
£1.10
Powder sachet
Punchy
16
Stevia + sugar
1.3g
Himalayan pink
None
£1.35
Powder sachet
Humantra
19
Stevia
0g
Himalayan pink
Informed Sport only
£1.40
Powder sachet
Liquid I.V. Hydration Multiplier
9
Stevia + glucose
6g
Not named
None
Not published
Powder sachet
SiS GO Hydro Tabs
6
Sucralose
0.2g
Not named
Informed Sport only
Not published
Effervescent tablet
Healthspan Elite Activ Hydrate
12
Sucralose
Not specified
Not named
Informed Sport only
£0.42
Powder sachet
NutritionX Hydra 10
15
Sucralose
8.47g
Not named
Informed Sport only
£1.15
Powder sachet
Phizz 3-in-1
24
Sucralose
1.1g (glucose 1st)
Not named
Informed Sport only
£0.40
Effervescent tablet
What to Avoid
Sucralose dressed up as clean. Four brands in this guide, SiS GO Hydro, Healthspan Elite, NutritionX Hydra 10 and Phizz, use sucralose. None of the marketing on any of the four mentions it upfront, so you have to check the panel yourself.
Glucose as the first ingredient. Phizz lists glucose before anything else on its panel, closer to an effervescent multivitamin with electrolytes added than an electrolyte drink. Read the ingredient order before you buy, not just the list.
Informed Sport sold as a purity credential. It is an anti-doping certification, not a heavy-metal or contaminant test, and eight brands here use it as if it were the latter, so do not let it reassure you about metals.
Under-dosed sodium for a real need. If you need a high sodium dose for a medical reason, check the milligram figure yourself. A UK forum thread ranking on this keyword flagged one brand's sodium as too low to help genuine symptoms.
How I Tested and How We Scored the Reviews
Two things sit inside every ranking here. My testing covers exactly three brands: REPOWR, SULT and LMNT. I rate REPOWR highest for raw salt quality and sachet ease, SULT close behind on both, and I like LMNT for being unapologetically salty. That is the extent of my personal use. I have not tested the other nineteen, and nothing here implies otherwise.
Everything else runs on two sources: the brand's own published formulation data, checked against the product page or a text nutrition panel, and customer review consensus aggregated across Trustpilot, Judge.me, Yotpo, Okendo, Amazon UK and each brand's own site widget, all dated 4 September 2026. Ratings are stated exactly as found. Full method: The Editor Lab.
Final Verdict
REPOWR RAW wins on the fewest ingredients, no sweetener, and a named salt source, not on taste or commission, since it is one of two top-four picks with no affiliate route through Balance Journal at all. Veloforte and LMNT follow for the same reason: formulation first. If published testing matters more than ingredient count, LMNT is the strongest pick here. Choosing on price? Read the sweetener column on the bottom four before you buy. For the wider picture, start at our electrolytes guide.
Frequently Asked Questions
Which electrolyte powder is best in the UK?
REPOWR RAW ranks best in this guide's formulation-purity framework: three ingredients, no sweetener, and a named, purity-claimed salt source. Veloforte and LMNT follow close behind. 'Best' depends on what matters to you though: for published heavy-metal testing specifically, LMNT is the strongest of the twenty-two brands ranked here.
What is the healthiest electrolyte to drink?
The healthiest electrolyte on this list is the one with the fewest ingredients, no artificial sweetener, and a salt source that is tested rather than just named. REPOWR and Ancient + Brave meet the first two. LMNT, Heights and DR.VEGAN are the only three that also publish independent testing on top of that.
What is the most effective electrolyte?
Effectiveness usually means sodium dose. Puresport, LMNT, Free Soul and Precision PH 1000 all carry 1,000mg of sodium per serving, the highest in this roundup, which is why endurance athletes and high-sweat users reach for them. For everyday hydration, a lower dose from a cleaner formulation may suit you better.
Are electrolytes good for you, NHS?
The NHS publishes no guidance on electrolyte supplements. It advises no more than 6g of salt a day, around one level teaspoon. Electrolyte drinks replace sodium lost through sweat, not add to daily intake, so check your label against that limit: NHS guidance.
What are signs that you need electrolytes?
Common signs include muscle cramps, headaches, fatigue, dizziness and dark urine, particularly after heavy sweating, illness or a long fast. These overlap with other causes, so persistent symptoms are worth checking with a GP rather than assuming a sachet will fix them. Our signs of electrolyte imbalance guide covers this.
How do you tell if your body needs electrolytes?
The clearest signal is context: heavy sweating, a long fast, illness with vomiting or diarrhoea, or a hangover. Thirst alone lags behind actual fluid and mineral loss, so if you are training hard, fasting, or unwell for more than a day, that is when a drink earns its place.
Is Lucozade an electrolyte?
Lucozade Sport contains sodium and some other electrolytes, but its formulation leads with sugar and glucose rather than mineral replacement, closer to a carbohydrate sports drink than a dedicated electrolyte product. NutritionX Hydra 10 in this guide sits in the same category: useful for endurance fuelling, not everyday clean hydration.
Are electrolyte powders tested for heavy metals?
Rarely, and that is the gap this guide exists to close. Of the twenty-two brands ranked here, only LMNT, Heights and DR.VEGAN publish anything resembling independent heavy-metal testing. Seven others cite Informed Sport, which screens for banned substances in sport, not heavy metals. The two are not the same thing.
Do electrolytes break a fast?
A zero-calorie electrolyte with no caloric sweetener generally will not break a fast under most protocols, though views vary by practitioner. REPOWR RAW and Ancient + Brave, both free of any sweetener, are the cleanest options here for strict fasting. Check your specific fasting protocol if you are unsure.
What are the best electrolytes for women?
Formulation criteria do not change by sex, so the same test applies: fewest ingredients, no artificial sweetener, zero added sugar. REPOWR RAW, Veloforte and Ancient + Brave lead on that basis. Sodium needs rise with sweat rate rather than sex. Pregnancy is the exception worth raising with a GP or midwife before you add any product.
A wellness entrepreneur and biohacker, James explores the intersection of hospitality and health - from clean fuel and recovery tools to mindful routines that build balance into daily life.