
Elite-level hydration, made simple
SLT+ is your essential high-strength hydration formula, created specifically for endurance athletes. It delivers a potent, scientifically formulated dose of the four key electrolytes lost in sweat to help maintain hydration, reduce fatigue, support performance, and promote faster recovery.
Developed for demanding conditions, heavy sweat loss, and hot climates, SLT+ replenishes and gives back, for maximum function and flavour. Designed for race conditions, in a compact and lightweight single-serve sachet.
Hydration that works as hard as you do. Recovery that starts before the finish.
Performance-tested, athlete-approved
SLT+ delivers 1080mg of sodium plus potassium, magnesium, and calcium to support hydration, reduce cramping, and keep you performing under pressure.
Built on science and shaped by feedback from elite athletes and everyday endurance users. From gut tolerance to flavour, from dosing to mixability, every detail has been tested, refined, and rebuilt for real-world performance.
Tested and certified by Informed Sport. SLT+ is screened for banned substances so you know exactly what you're putting in your body. Nothing hidden, nothing harmful, just clean, regulated, effective hydration, that you can trust.
Years of testing for
demanding conditions
SLT+ is the result of years of testing and scientific refinement engineered for heavy sweat loss, tough conditions, and serious endurance.
From the original SLT05 to SLT07 and now SLT+, Styrkr spent years adapting the formula to give you the best possible hydration, based on your training and racing conditions. Allowing you to choose the right level of hydration, when it matters most.
- 1080mg Sodium
- 280mg Potassium
- 120mg Magnesium
- 60mg Calcium
What fuels every dose of SLT+?
High dose, endurance ready
Delivers 1080mg sodium per serving — one of the highest on the market — built for serious endurance athletes.
Powerful hydration support
Designed to help replace key electrolytes lost through sweat and reduce tiredness and fatigue.
Backed by science
Formulated using research-driven ratios to support energy, focus, and muscle function during endurance activity.
Bold flavours, fast mix
Fast-dissolving and light on the gut, with clean-tasting Berry & Lime and Orange flavour options.
Vegan and gluten-free
Vegan friendly and gluten-free so you never have to compromise your regime.
Small but powerful
Just 7.5g per sachet, easy to carry and delivers a performance-focused electrolyte hit.
Four key electrolytes that help maintain hydration
SLT+ delivers a high-strength sodium dose (1080mg) alongside potassium, magnesium, and calcium - essential minerals that help the body perform under stress and recover efficiently.
Sodium Chloride
Supports fluid balance, helps maintain normal blood pressure, and is essential for muscle and nerve function.
Potassium (Chloride)
Supports normal muscle and nerve function and helps maintain healthy blood pressure levels.
Magnesium (Citrate)
Helps reduce tiredness and fatigue while supporting energy release, muscle function, and electrolyte balance.
Calcium (Malate)
Essential for strong bones and teeth, supports muscle function, and plays a key role in energy metabolism.
Combat energy loss
Electrolytes play a role in energy metabolism and can help reduce the sensation of tiredness during prolonged activity. Maintaining adequate levels supports your body's natural energy-producing processes.
Complete electrolyte profile
Endurance sports can lead to significant sweat loss, which depletes essential electrolytes like sodium, potassium, and magnesium. Replenishing these minerals helps maintain fluid balance, supporting key functions such as nerve signalling and muscle responsiveness.
Muscle function and recovery
Proper electrolyte intake contributes to normal muscle function, which is essential during and after exercise. It also supports processes like protein synthesis and bone health—both vital for recovery and overall performance.
Before
Start strong with key electrolytes to prep muscles and support hydration.
During
Stay fuelled with fast electrolytes to keep going longer and stronger.
After
Replenish lost salts to aid recovery, reduce fatigue, and restore balance.