It's Functional Water that goes beyond hydration. Each ingredient is chosen to support how you feel, not just how much you drink. Water with a Purpose…
Hydration Support
225mg
Electrolytes
Zero Sugar
Vitamin C
162mg
per can
No crash
0mg
Caffeine
What's In SÜTHE?
SÜTHE is built with ingredients that are easy to recognize and chosen for a reason. Every 16oz can includes L-Theanine, Magnesium Glycinate, Vitamin C, and electrolytes in a zero-sugar, zero-calorie formula designed to support a calmer, more balanced hydration experience.
L-Theanine
Magnesium Glycinate
Sodium Bicarbonate
Potassium Chloride
Vitamin C
Citric Acid
How SÜTHE Compares
See how purposeful hydration stacks up against what's already in your fridge.
Added Sugar
0g
25g+
20g+
0g
Electrolytes
Yes
Rare
Yes
No
Calm Support
Yes
No
No
No
Crash / Jitters
None
Common
None
None
Made For How You Actually Live
SÜTHE is not built for one extreme use case. It is made for the moments between them: workdays, errands, meetings, commutes, midday resets, and the parts of daily life that ask for more clarity and less chaos.
FAQs
Got Questions? We've Got Answers!
Everything you need to know before your first can.
Is L-Theanine safe to take every day?
L-Theanine is widely considered safe for daily use at the amounts found in SÜTHE. It occurs naturally in green tea, which people drink daily around the world.
Is L-Theanine better than caffeine for focus?
They work differently. Caffeine is a stimulant that raises alertness quickly and then drops it. L-Theanine supports calm, steady attention without a stimulant, so the focus lasts longer and ends without a crash. If you want a fast jolt, caffeine does that. If you want to stay level for a few hours, L-Theanine is the better tool.
How much L-Theanine is in a can?
100mg, printed on the can.
What's the difference between magnesium glycinate and magnesium citrate?
Glycinate is bound to glycine and absorbs well while staying gentle on the stomach, which makes it the better choice for daily use and for relaxation. Citrate is more often used for digestion and can have a laxative effect. SÜTHE uses glycinate.
Does SÜTHE have any sugar?
None. No sugar, no artificial sweeteners, zero calories.
Can I drink more than one a day?
Yes. There's no caffeine to stack and nothing that builds up, so it comes down to what feels right for you. Most people have one a day, some have two.
Is Suthe Water vegan and gluten-free?
Yes to both — no animal-derived ingredients, no gluten.
Is SÜTHE an energy drink?
No. Energy drinks use caffeine to push alertness up, then it falls. SÜTHE has no caffeine and no sugar. It supports calm focus and hydration instead of a temporary lift.
Does functional water actually work?
It depends on the dose. Plenty of drinks list a trendy ingredient in an amount too small to matter. SÜTHE prints every dose on the can so you can judge it yourself, and the L-Theanine is dosed at 100mg, in line with what's been studied.