Electrolyte Capsules
01

Electrolyte Capsules. Redesigned.

Built for Women Who Run Farther.

Most sports nutrition products are built on research conducted almost entirely on male athletes. Nobody designed a capsule specifically for women. SÈVE is built around how women actually train — smaller capsule, precision dosing, nothing you do not need.

19.4mm SÈVE capsule length vs 21.7mm industry standard size 0
44% Of 2025 London Marathon finishers were female. Increasing every year.
0 Brands currently designing electrolyte capsules for women

The Problem

Sports nutrition has
a blind spot.

01

Capsules designed for male physiology

Sports nutrition research has historically used male subjects at a ratio of eight to one over female only studies. Standard size 0 capsules reflect that and are formulated around male physiology. If you have ever struggled to swallow one mid-run, you are not imagining it. The product was not built with you in mind.

03

The workarounds are worse

Opening capsules into your drink. Switching to sugary tablets you do not want. Skipping electrolytes entirely and hoping for the best at mile 18. None of these are solutions.

04

Flavour fatigue is real

After three gels and a sports drink, the last thing you want is more sweetness. You need something tasteless you can take with plain water. That product should actually fit down your throat.

Why SÈVE

Smaller capsule.
Bigger performance.

01

Size 1 capsule. Meaningfully smaller.

SÈVE uses a size 1 capsule. 19.4mm vs the industry standard 21.7mm. Easy to swallow at mile 10, mile 20, or any mile in between. A small change that makes a real difference when you are breathing hard.

02

Precision dosing. Take what you need.

Lower dose per capsule means you control your intake precisely. One capsule for an easy hour. Two for a long run in heat. Adjust to your sweat rate, your conditions, your body. Not a one-size prescription.

03

Clean. Tasteless. Nothing extra.

Sodium, potassium, magnesium. No artificial flavours, no sweeteners, no ingredients you cannot pronounce. Takes with plain water. Vegan. Informed Sport certified (coming).

Precision HydrationFemale EnduranceSize 1 CapsuleBuilt for WomenNo CompromiseRun FartherClean FormulaJoin the WaitlistPrecision HydrationFemale EnduranceSize 1 CapsuleBuilt for WomenNo CompromiseRun FartherClean FormulaJoin the Waitlist
19.4mm

SÈVE vs Industry Standard

SÈVE was born from a simple frustration. Every electrolyte capsule on the market is too big, too generic, and designed without female athletes in mind. With a background in sports engineering and experience working across elite sport, we understand performance from the inside. The product should work as hard as the athlete taking it.

Founder, SÈVE

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