saunalyte

Sauna hydration, Ireland

For beach cabins, gym saunas and everything in between

You sweat like an athlete in there. You rehydrate like someone who forgot.

A hard sauna session pulls out more fluid and salt than most gym workouts — and plain water puts back only part of it. Set up your session below and we'll show you what you actually lost, and which electrolyte on the market replaces it.

Type of sauna
Rounds in the sauna
How much you sweat
90°C
Sauna
temperature
Fluid out
1.1L
Sodium out
1025mg
Time hot
41min
Water alone replaces
0% of the salt

When to drink it

    Why salt, not just water

    Sauna sweat is real sweat

    Heat sweat carries sodium at roughly the same concentration as exercise sweat — around 500 to 1,500 mg per litre, depending on the person. Sitting still doesn't give you a discount.

    Water alone dilutes you

    Drinking litres of plain water after a heavy session replaces volume while your sodium stays down. That's the headache, the flatness and the light head an hour later.

    Sports tabs are built for a different job

    Most tablets sit near 300 mg of sodium per serving, tuned for a bottle you sip over an hour of running. After four hard rounds in the heat the arithmetic doesn't reach.

    Waitlist and protocol card

    Leave your email and we'll send your timing plan as a printable card — and tell you first when SaunaLyte is ready to buy. No spam, and you can leave any time.