
CORNER
Post-weigh-in rehydration
20 sachets
28€
Rapid rehydration built for real training, not vague hydration advice.
30-day returns · Lab results published for every batch
Per serving
Sodium, potassium, magnesium and glucose in the ratio that actually gets water back into you, rather than through you. Built for the window after the scale, when you have hours to feel normal again.
Sodium — 1000 mg
Chloride + citrate
Potassium — 350 mg
Citrate
Magnesium — 120 mg
Dicitrate
Glucose — 8 g
Co-transport carrier
Questions about CORNER.
Pre-launch answers from the Rounds team. No verified purchases yet — this is what early testers and interested athletes want to know.
- IvanInterested athletePolandCORNER
Do I need this if I already drink electrolytes?
Response from ROUNDS
If your electrolytes cover sodium and potassium and you like the taste, keep them. CORNER is built around the specific osmolarity and mineral profile fighters need after a hard cut or between rounds.

