Hydration is one of those things that sounds simple, but during longer training it can become the thing that quietly unravels a good session.

If you’ve ever finished a long run or ride with salt marks on your kit, felt heavy legs earlier than expected, or struggled to drink enough water when it’s hot, there’s a good chance electrolytes are part of the answer.

Styrkr SLT+ is built for those situations.

It delivers a high dose of sodium alongside potassium, magnesium and calcium — the key electrolytes lost through sweat during endurance exercise.

What we like about it is the simplicity.

It’s not trying to be a fuel drink.
It’s not trying to be everything at once.

It’s a strong, clean electrolyte solution that lets you manage hydration separately from energy intake. That means you can combine it with gels, chews or drink mixes depending on the session.

For runners, cyclists and triathletes training in warmer weather, on longer rides, or simply sweating a lot, that flexibility can make a real difference.

Sometimes it’s not about adding more carbs.
It’s just about replacing what you’re losing.

Typical Use Cases

SLT+ works particularly well for:

• Marathon and ultra running
• Long cycling rides
• Triathlon training
• Hot weather training blocks
• Heavy sweaters needing more sodium

When to Use Electrolytes Like SLT+

Electrolytes become increasingly important when:

• Exercise lasts longer than 90 minutes
• Training takes place in warm conditions
• Sweat rate is high
• Salt marks appear on clothing or skin after sessions

Replacing electrolytes helps support hydration, muscle function and overall endurance performance.

Product Details

Per serving:

• 1080 mg Sodium
• 280 mg Potassium
• 120 mg Magnesium
• 60 mg Calcium

This quad-blend electrolyte profile helps replace the key minerals lost through sweat and supports hydration during prolonged exercise

1 sachet mixed with at least 500 ml of water.

Best used:

• Before long sessions

• During endurance training or racing

• In hot conditions

• When you know you are a salty sweater

Maximum recommended intake: 3 sachets per day.

Below is our Shipping Policy; you can also find answers to frequent questions on our FAQ page.

United Kingdom Shipping

Orders placed before noon Monday to Friday will ship the same day. 

Orders placed after noon Monday to Friday will ship the next working day. 

Orders placed at the weekends will be shipped on a Monday. 

Orders are delivered Monday-Friday.

Orders Under £35

When your order is less than £35, we charge £3.50 for standard UK delivery.

Orders £35 or more

When your order exceeds £35, you qualify for free standard UK Shipping at checkout. If the order is placed before noon, your package will be sent that day, and we will always try to have it with you within three working days. If the order is placed after noon, it will be sent the next working day.

If you have any further questions please check out our FAQ page.