"I was sceptical at first, but so glad I gave these a try. My running endurance has improved so much since taking these, I have noticed such a difference especially in my long runs. These now have a permanent place in my supplement stack!"
Puresport's Ultra Electrolytes is a scientifically formulated electrolyte solution designed for athletes and active individuals who require optimal hydration during exercise. With a balanced combination of 1000mg sodium, 250mg potassium, 100mg magnesium, and 50mg calcium, this electrolyte drink replenishes essential minerals lost during sweat, helping to maintain hydration, along with supporting muscle function and endurance. The Variety Pack contains 5 sachets of each of Citrus, Raspberry and Watermelon flavours.
Key benefits
Hydration is crucial for maintaining performance, particularly during intense or prolonged physical activity. Electrolytes like sodium and potassium are essential to help prevent dehydration, which are a common issue in endurance sports. Puresport’s Ultra Electrolytes is designed to keep athletes hydrated, support endurance and muscle function with a sugar-free, refreshing flavours of citrus, raspberry and watermelon.
Ingredients list
Sodium (Chloride) 1000mg
Sodium is critical for maintaining fluid balance and enabling muscle contractions. It is the most important electrolyte lost through sweat and essential for performance during prolonged exercise.
Potassium (Chloride) 250mg
Potassium works with sodium to maintain fluid balance and muscle contractions.
Magnesium (Citrate) 100mg Magnesium supports muscle function and reduces fatigue by regulating electrolyte balance.
Tri-Calcium (Citrate) 50mg Calcium is essential for muscle function and nerve transmission.
Who are electrolytes for? Designed for athletes and active individuals who want to maintain energy, endurance, and performance in any conditions.
How long will it last? Number of Servings per Box - 15 sachets
How long before I notice the benefits? The time it takes to feel the benefits of our Electrolytes can be relatively quick. Immediate effects are usually felt from 30mins - 1 hour. Longer term cumulative benefits can be noticed from a week of consistent use around intense exercise.
Shipping and returns
Free UK Shipping on subscriptions and orders over £50.
100% PERFORMANCE GUARANTEE. Not right for you after 30 days? No problem, we'll refund you.
Unopened products can be returned within 21 days of delivery for a full refund.
Please reference our Shipping and Returns page here for more information or contact us at contact@puresport.co with any queries.
Don’t just take our word for it.
Trusted by 400,000+ customers. Are you ready to join them?
FEEDBACK FROM REAL RUNNERS
Instead of relying on claims alone, we asked 250 runners who regularly use Ultra Electrolytes about their experience.
93%
93% of users said they helped improve their performance
82%
82% said they were better than other electrolyte brands they’ve used
97%
97% reported an overall positive experience
Customer Reviews
Overall rating: 4.8 / 5 from 525 reviews.
Love the salty but sweet flavour! No more headaches as I get heat stroke easily when exercising / in the sun too much.
I started using these on my longer sessions for marathon training, hitting distances around 17-22 miles. I tend to take two sachets the day before the long run, then one a couple hours before and have sipped another during and after the run.
I’ve found I feel more hydrated during them and feel I don’t dehydrate on 2-3 hour runs. I also feel less stiffness and aching the days after and no cramping during the runs. So working well so far.
Really enjoying the flavour too, I started with the trail pack of different flavours and settled on Raspberry Salt as my favourite so purchased the box of them.
Something I’ll keep using through various training and races.
After taking puresport ultra electrolytes, I feel much more lively, less lethargic and more energy.
I even start taking it before work as I'm on my feet for 6 hours. I definitely need the hydration and energy to continue my demanding activities throughout the day which includes running and walking my lovely dog.
Overall, I'm very happy :blush: with puresport ultra electrolytes. Thanks guys!!!
Best salty water you will ever have x
The best electrolytes I've tried!!
They're so tasty and I love that they come in individual sachets. I bought the first release when they all clumped together (still used them all) but now that they pour well and dissolve straight away they're *chefs kiss*
Awesome. Just Awesome.
Saltiest electrolytes in the game! It's what we always wanted, they are top tier and are a must in my training and nutrition not just for running but fitness across the board.
Hydration for the nation
I've been using Puresport electrolytes for around 3 weeks and the results have been incredible, I sweat a lot and suffer from severe headaches, yet since taking the electrolytes I haven't had any!!!!
Best I have tried, only negative is it’s on the pricey side and packaging is a bit wasteful. Perhaps a ‘bulk’ offering with more servings in one container
good price, all flavours taste nice and better then most in the market.
helped keep me fuelled ahead and during my first ever running event - 8 hour loop marathon.
would recommend especially the sachets, it helps with consistency, keep some at home, at work, in the car etc.
Genuinely the best flavour of electrolytes I’ve ever tasted. It makes me want to drink water. Phenomenal. 6 stars.
And well done to Puresport for signing Amy Hunt before she explodes as the coolest GB athlete in years. Epic.
Loved the kit
The starter kit is fantastic. I love the flavor of the electrolytes and the rest of the products really fueled my training. The bottle and socks were an nice gift, they're really nice.
Sodium is critical for maintaining fluid balance and enabling muscle contractions. It is the most important electrolyte lost through sweat and essential for performance during prolonged exercise.
Potassium (Chloride)
Potassium works with sodium to maintain fluid balance and muscle contractions.
Magnesium (Citrate)
Magnesium supports muscle function and reduces fatigue by regulating electrolyte balance.
Calcium (Malate)
Calcium is essential for muscle function and nerve transmission.
Sweat depletes sodium and key minerals needed for hydration, nerve signalling and muscle function.
Balanced electrolytes. Better hydration.
Sodium, potassium and magnesium in bioavailable forms help support fluid balance, endurance and performance.
Built for training that goes the distance.
Use before, during or after exercise to support hydration and recovery, especially in demanding conditions.
No Sugar
MADE IN UK
Vegan
1 Million Units Sold
Gluten Free
Certified
Trusted by the Best
Us vs Them. How We Stack Up.
PURESPORT
OTHER BRANDS
TABLETS / STICKS
SPORTS DRINKS
Developed by experts. Backed by science
No sugar, no fillers, no artificial ingredients
Correct balance of electrolytes in an optimal ratio
Single-serve sachets for accuracy and convenience
Informed Sport Certified
Informed Sport Certified
1000mg Sodium
No Sugar
Vegan
Gluten Free
No Preservatives
Why do I need electrolytes?
When you sweat, you lose sodium and key minerals essential for hydration, nerve signalling and muscle function.
How does it work?
Each serving delivers sodium, potassium and magnesium in bioavailable forms, in a science-backed ratio, to support fluid balance, performance and endurance.
When do I take it?
Before training to start hydrated. During long or hot sessions to replace losses. After to support recovery.
Why Puresport?
Most electrolytes are under-dosed, poorly balanced or full of sugar and fillers. Ours use the right minerals, in effective ratios, with nothing unnecessary.
Backed by Experts
Electrolytes are most useful when they solve a real problem: replacing the key minerals lost in sweat, particularly sodium. For longer runs, hot conditions, or athletes with higher sweat losses. Puresport Electrolytes provide a practical way to support fluid balance, great tasting and a simple formula that delivers sodium, potassium, magnesium and calcium.
Dr Jamie Pugh
MD, PHD
Science Advisor | MIT Sloan
More Questions?
Electrolytes are essential minerals (sodium, potassium, magnesium, calcium) that carry an electric charge and regulate vital body functions. You need them for proper hydration, muscle function, nerve transmission, and energy production. Your body loses electrolytes daily through sweat, urine, and breathing. Without adequate replacement, you may experience fatigue, muscle cramps, headaches, and poor performance. Puresport's electrolyte supplements helps maintain optimal hydration and supports your active lifestyle.
Common electrolyte imbalance symptoms include:
Muscle cramps and spasms
Persistent fatigue and weakness
Headaches and dizziness
Irregular heartbeat
Poor exercise performance
Difficulty concentrating
These symptoms often occur after intense exercise, illness, excessive sweating, or inadequate nutrition. Proper electrolyte supplementation can help restore balance and improve how you feel. Consult a healthcare professional for severe symptoms.
Optimal timing for electrolytes:
Pre-workout: 30-60 minutes before exercise to prevent cramping
During exercise: For workouts over 60 minutes to maintain performance
Post-workout: Within 30 minutes to support recovery
Daily: Morning hydration, hot weather, travel, or during illness
Special situations: Intermittent fasting, keto diet, or increased activity
Listen to your body and adjust timing based on your individual needs and activity level.
Sports Drinks:
High sugar content (20-35g per bottle)
Artificial colors and preservatives
Limited mineral profile
Designed for intense, prolonged exercise
Puresport's Ultra Electrolytes:
Zero sugar
Comprehensive mineral profile
Natural ingredients
Suitable for daily use and all activity levels
Better absorption and flexible dosing
Water alone replaces fluid but doesn't restore the minerals lost through sweat and daily activities. Electrolytes enhance hydration by helping your body absorb and retain water more effectively.
When water is enough:
Light daily activities
Short workouts under 60 minutes
Mild dehydration
When electrolytes are better:
Intense exercise or sweating
Hot weather conditions
Recovery from illness
Prolonged physical activity
When you need faster, more complete rehydration
Electrolytes don't replace water they make water work better. For optimal hydration, especially during active periods, electrolytes help your body use water more efficiently than water alone.
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