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Electrolyte Hydration Stick

Hydration that's balanced, not salty.

A daily stick with a pinch of salt plus more potassium and magnesium, made with real fruit. Caffeine-free, no dyes.

Texas Ruby Red Grapefruit Launch flavor

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$25 for a 14-stick box · founding batch · nothing to pay today · Privacy

FERN Electrolyte Hydration Stick box in Texas Ruby Red Grapefruit, cream with a ruby edge and a grapefruit half

Light on salt

Enough sodium to matter, light enough to drink every day.

More than salt

Every stick pairs a pinch of salt with more potassium and magnesium.

Caffeine-free

No caffeine, so you can sip it morning, noon, or night.

Ingredients

A short list, chosen on purpose.

These are our formula targets while we lock the final recipe with our manufacturer. We'll share the full panel before launch.

Not in it: artificial flavors, artificial sweeteners, dyes (no Red 40, no Blue 1), preservatives, fillers, caffeine.

The science, kept simple

Salt is the start. Balance is the point.

Sodium
Target 300mg per stick. The pinch of salt.
Potassium
More of it, paired with the salt for balance.
Magnesium
More of it too, so every stick is more than salt water.
FERNTypical sports drinksTypical salty mixes
Flavor fromReal fruitOften artificial flavorsVaries
DyesNoneOftenVaries
Salt levelA pinch, balancedVariesOften high
CaffeineNoneVariesVaries

A general comparison of product categories, not specific brands. Products vary, so check the label.

FAQ

Good questions.

How is this different from other electrolyte mixes?

Many lead with a lot of salt. We target 300mg sodium per stick, balanced with more potassium and magnesium, so it's light enough to drink every day. And it's flavored with real fruit.

Is it sweet? What sweetens it?

Just enough to round off the tartness. The final sweetener is being locked with our manufacturer; we'll share the full panel before launch.

Is it caffeine-free?

Yes. No caffeine, so you can sip it any time of day.

Are there any dyes?

No. No dyes (no Red 40, no Blue 1), and it's flavored with real fruit.

What flavors are there?

Texas Ruby Red Grapefruit is the launch flavor. Lemonade is coming soon; vote for it when you join and we'll tell you when it's ready.

When does it ship?

The first batch is in the works. The waitlist gets the ship date first, plus first dibs on the founding batch.

Is there a subscription?

No. The founding batch is one-time 14-stick boxes, and joining the waitlist costs nothing.

The founding batch

$25 for a 14-stick box.

The first batch is small, and the waitlist gets first dibs. Nothing to pay today.

Flavor vote (optional)

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Lemonade Coming soon
Real lemon. Vote for it when you join →