That post-sauna slump isn't 'relaxation', it's a full-body crisis.
Lose 2-3 cups of sweat, and you're dumping sodium that spikes headaches, potassium that triggers muscle failure, and dopamine precursors that tank your motivation. Regular saunas without recovery? You're building chronic fatigue, emotional burnout, and stalled progress. We call it the sauna hangover, and it's silently sabotaging your wellness goals."

Headaches
Resolved.

Fatigue
Resolved.

Cramps
Resolved.

Brain Fog
Resolved.

Lost in Sweat
🔻 Sodium
Blood volume crashes, hello dizziness and weakness
🔻 Potassium
Nerves misfire, muscles cramp, goodbye gains.
🔻 Dopamine precursors
Mood plummets, focus evaporates.
🔻 Antioxidants
Oxidative stress surges, ageing accelerates.
🔻 Cellular hydration
Cells starve, energy tanks.

Replaced by Agua
🧂 Sodium + Chloride
Restores volume, banishes fatigue.
⚡ Potassium + Magnesium Citrate
Ends cramps, unlocks calm.
🧠 L-Tyrosine + Vitamin B6
Reignites mood and mental sharpness.
🍊 Vitamin C + Zinc
Boosts immunity, fights free radicals.
💧 Taurine + Himalayan Trace Minerals
Deeply hydrates cells.
You Didn’t Detox - You Depleted.
- Brain fog? Sodium + taurine loss reduces circulation to the brain
- Mood crash? Dopamine precursors burned out from heat stress
- Mid-day Lethargy? Electrolyte imbalance triggers nervous system misfires
- Cramping muscles? Magnesium and potassium down = twitch city
Agua gives your body the recovery protocol it thought it was getting.
Don't take our word for it
Ready to End the Sauna Hangover Cycle?
Agua is your post-sauna recovery ritual, in one clean, fast-dissolving sachet:
🔋 Replenish lost electrolytes
🧠 Support mood, focus, and energy
💧 Hydrate deeper than water alone
✅ No sugar, no crash, no BS
Feel better. Recover faster.
Enjoy every benefit of your sauna, with none of the downsides.
Full-Spectrum Recovery In One Effervescent Sachet | sauna accessories uk
Quick-hit ingredient list:
One sachet of Agua is designed to cover your first 20 minutes at 85–95°C. Just mix it in 500ml of water. It hits the sweet spot for sodium, potassium, and magnesium based on real sweat loss studies. Want to be exact? Weigh yourself before and after your sauna.
Essentials include hydration solutions such as the Fjord insulated sauna bottle and Agua electrolytes, along with safe grips, towels, and thermometers to complete your sauna ritual.
Yes—especially if you sauna a few times a week. You lose up to 3,000mg of sodium per session. Without replacing it, you’re risking fatigue, dizziness, cramps, and headaches. Agua gives you what your body actually loses—nothing extra, nothing missing.
Hydration that works. Agua helps your body absorb water better than plain H2O (40% better, in fact). It supports hormones like dopamine (so you feel good), helps muscles relax, and even boosts longevity proteins (HSP70). More recovery, less burnout.
Yes. Fjord is designed for high-heat use. Its stainless-steel interior and silicone exterior stay cool to the touch and will not leach chemicals or warp in the heat.
Not with Agua. Our doses are safe, smart, and well under daily upper limits. If you’re sensitive to sodium or have high blood pressure, speak to your GP first. We keep it clean—no sugar, no stimulants, no surprises.
Simple: Agua is built for sauna recovery, not just workouts. No sugar, no insulin spikes. Just pure electrolytes, trace minerals, and proven boosters (like taurine and L-Tyrosine) that actually help in heat.
Yes. Dehydration and mineral loss are the #1 cause. Agua replaces what’s lost and adds things like vitamin C and taurine to fight off fatigue and help you feel balanced fast.
You can do all three. Sip during long sessions to stay topped up. Take it after for faster recovery. Going in hot for 30+ minutes? Preload before. It’s flexible.
Healthy diets help, but sauna sessions can wipe out what food can’t replace—especially magnesium and potassium. If you’re low-carb or low-salt, supplementation becomes even more essential. sauna accessories uk.
Zinc, magnesium, and vitamin C boost something called heat shock proteins—your body’s cellular repair team. These help with recovery, aging, and resilience. Agua is formulated to amplify these effects.
Yes—generally safe. But if you’re on medication (especially antidepressants), check with your GP. Agua is vegan, non-GMO, and free from anything dodgy.
You’ll feel the hydration instantly. Hormonal and recovery benefits build over 1–2 weeks of consistent use. Users often report better sleep, fewer cramps, and more energy.
Both. If you’re just starting out, try half a sachet. Regular sauna-goer? Full sachet. Easy.
It’s not just trendy—it contains over 80 trace minerals (like selenium and iron) that support hydration, digestion, and overall recovery. You’ll feel the difference. sauna accessories uk.
Fjord keeps your Agua mix cold—even in a 90°C sauna. No plastic toxins. No burnt hands. Just a smart grip and cool hydration when you need it most.
Because it’s engineered for heat. Not just another sports mix. It’s the only formula built around sauna science—hydration, hormonal recovery, cellular repair, all-in-one.