Pay With HSA/FSA
3+ months of clinically-proven liquid electrolytes that hydrate 64% more than water alone, now available for purchase using your HSA or FSA cards.
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Registered at clinicaltrial.govView Clinical Study
Registered at clinicaltrial.govView Clinical Study

Larger Quantities, Maximum Savings

Savings up to $213
As low as $0.49/serving
HSA/FSA eligible purchases start at 3-month supplies, earning volume discounts and free gifts that increase with order size.
4 Free Gifts
When you spend $260
3 Free Gifts
When you spend $195
2 Free Gifts
When you spend $130
1 Free Gifts
When you spend $65
Shop Eligible Products
HSA/FSA Eligible*
Ocean Electrolytes

Unflavored liquid electrolytes and 87+ ionic trace minerals. Add to any drink. No sugar, sweeteners, or flavors.

Clinically-proven to hydrate 64% more than water alone.
View Clinical Study
See Third-Party Tests
Best-Seller
Rated 4.7 out of 5
Based on 4,716 reviews
Hydration Drops

The original liquid electrolyte

Save up to $88.50
Up To 2 Free Items
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Add to Cart
4.7 out of 5
4.7/5 from 4,716 Reviews
Hydration Drops
The original liquid electrolyte
Best-Seller
Rated 4.6 out of 5
Based on 723 reviews
Digestion Drops

Anti-bloat, gas, IBS support

Save up to $112.50
Up To 3 Free Items
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Add to Cart
4.6 out of 5
4.6/5 from 723 Reviews
Digestion Drops
Anti-bloat, gas, IBS support
Rated 4.7 out of 5
Based on 254 reviews
Brain Health Drops

Clarity, focus and neuroprotection

Save up to $112.50
Up To 3 Free Items
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Add to Cart
4.7 out of 5
4.7/5 from 254 Reviews
Brain Health Drops
Clarity, focus and neuroprotection
2x Pack Size
Rated 4.8 out of 5
Based on 485 reviews
Rescue Drops

6x stronger, high sodium electrolyte

Save up to $195
Up To 4 Free Items
Learn More
Add to Cart
4.8 out of 5
4.8/5 from 485 Reviews
Rescue Drops
6x stronger, high sodium electrolyte
Rated 4.6 out of 5
Based on 958 reviews
Energy Drops

No crash, no-jitters energy

Save up to $112.50
Up To 3 Free Items
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Add to Cart
4.6 out of 5
4.6/5 from 958 Reviews
Energy Drops
No crash, no-jitters energy
Rated 4.5 out of 5
Based on 651 reviews
Immunity Drops

3:1 daily immune support

Save up to $112.50
Up To 3 Free Items
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Add to Cart
4.5 out of 5
4.5/5 from 651 Reviews
Immunity Drops
3:1 daily immune support
Rated 4.8 out of 5
Based on 143 reviews
Rescue Salt

Unrefined, solar evaporated, high-mineral sea salt

Save up to $84
Up To 2 Free Items
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Add to Cart
4.8 out of 5
4.8/5 from 143 Reviews
Rescue Salt
Unrefined, solar evaporated, high-mineral sea salt
HSA/FSA Eligible*
Featured Bundles

The best place to start. Get our largest discounts on curated kits.

Clinically-proven to hydrate 64% more than water alone.
View Clinical Study
See Third-Party Tests
Extra-Strength
Rated 4.8 out of 5
Based on 733 reviews
Rescue Kit

Both extra-strength electrolytes in 2 bioavailable forms

Save up to $213
Up To 4 Free Items
Learn More
Add to Cart
4.8 out of 5
4.8/5 from 733 Reviews
Rescue Kit
Both extra-strength electrolytes in 2 bioavailable forms
Rated 4.7 out of 5
Based on 9,447 reviews
Ocean Electrolyte Kit

All six of our liquid electrolytes + rescue salt

Save up to $210
Up To 4 Free Items
Learn More
Add to Cart
4.7 out of 5
4.7/5 from 9,447 Reviews
Ocean Electrolyte Kit
All six of our liquid electrolytes + rescue salt
Rated 4.7 out of 5
Based on 5,237 reviews
Hydration Essentials Kit

A complete, ocean-powered electrolyte routine

Save up to $121.50
Up To 3 Free Items
Learn More
Add to Cart
4.7 out of 5
4.7/5 from 5,237 Reviews
Hydration Essentials Kit
A complete, ocean-powered electrolyte routine
FAQs
How do I pay with my HSA or FSA card?
To use your HSA or FSA debit card, add products from this page to your cart as usual. At checkout, select “Flex | Pay with HSA/FSA” as your payment option, enter your HSA or FSA debit card, and complete your checkout as usual. Some products may require you to fill out a questionnaire at checkout to determine your elligibility.

If you don’t see “Flex | Pay with HSA/FSA,” you may be in Shop Pay. Select “checkout as guest” to view more payment options.
Why do I need to fill out a health questionnaire at checkout?
Some of our products are considered "dual use" – which means that the IRS requires you to have a Letter of Medical Necessity (LoMN) in order to qualify to use your HSA or FSA card. Buoy has partnered with Flex to enable asynchronous telehealth visits as part of our checkout to enable elligible customers to checkout instantly with their HSA/FSA card. Within 24 hours of your purchase, Flex will email you both an itemized receipt.
What is a Letter of Medical Necessity (LoMN)?
A letter is essentially a note from a doctor stating that you are purchasing an item to treat or manage a medical condition.
Why can't I see Flex as a payment method?
The key here is to make sure you are logged out of ShopPay. One of the easiest ways to do this is to go through checkout in an incognito window.
What if I don't have my HSA/FSA card available?
If you don’t have your HSA or FSA card handy, still select “Flex | Pay with HSA/FSA” as your payment method. Enter your credit card information and Flex will email you an itemized receipt to submit for reimbursement.
Why is my HSA/FSA card being declined?
HSA/FSA cards are debit cards, and the most common reason for declines is insufficient funds. Reach out to your HSA/FSA administrator to confirm your balance.
Why do I have to purchase at least a 3 month supply?
HSA/FSA eligibility requires products to be primarily for medical purposes, and our 3-month minimum helps establish a therapeutic protocol rather than casual use.

To support, we've applied our deepest discounts with the ability to earn free gifts with larger purchases, making your tax-free dollars go even further.
How is Buoy different from other electrolytes?
Buoy is the first purposefully unflavored liquid electrolyte supplement optimizing for function, not flavor.

No sugar, sweeteners, flavors, or additives the others use and delivered in a new, high bioavailable form factor for easy, fast absorption.

All Buoy electrolytes provide full-spectrum hydrate with 87+ ionic trace minerals and elements commonly missing from American diets.

We publish all third party tests and invest in University-led, crossover design clinical studies.
Are Rainforest Wild Foods products eligible for HSA/FSA purchase?
Our new line of Rainforest Wild Foods are waiting HSA/FSA eligibility—we expect them to be added by next calendar year.
When should I expect to see benefits?
Buoy is clinically-proven to hydrate 64% better than water alone at just six hours.

While many customers report improved hydration and energy within the first week, deeper benefits like reduced inflammation, better mineral balance, and enhanced cellular function typically emerge over 2-4 weeks of consistent use.
Will I taste anything?
Buoy is purposefully unflavored, which means we do not hide behind the sweet and inflammatory ingredients like sugar, stevia, dextrose and "natural" flavors which most other electrolyte products include.

SUBTLE MINERAL TASTE
Electrolytes are salts, so on their own they taste very salty. Our competitors mask this saltiness by adding sugar, sweeteners, and "natural" flavors to their electrolytes. We spent 4 years in R&D figuring out how to deliver electrolytes with as neutral of a flavor profile as possible without adding those nasty ingredients. We achieved this goal, although there is still a very subtle mineral taste present because we do not use any sugar, sweeteners or flavors to cover it up. While many people don't notice a taste in most beverages, everyone's palette is different and so you may notice hints of a subtle mineral flavor.

A LITTLE GOES A LONG WAY
One serving is a single, short squeeze into a full beverage. Each serving contains ⅓ of the electrolyte content of a sports drink. For those noticing a strong taste, you've likely squeezed too much into a single beverage or a half-full beverage.
Will Buoy break my fast?
Nope!

Unlike other electrolytes, Buoy will not change your metabolic state regardless of how many servings you use.

• 0 Calories
• 0 Carbohydrates
• 0 Sugar
Are your B Vitamins methylated?
Methylation is typically in reference to Vitamins B9 and B12 because of cheap, widely used and non-absorbable forms these specific vitamins. These vitamins are not used in any Buoy products.

The B Vitamins used in Buoy typically do not come in a methylated form (there is a rare B6 form floating around but is not standard or widely used).

For the vitamins used, Buoy sources the cleanest, most absorbable forms of B1, B5, and B6. Methylation is typically a term used with B vitamins that aren't in Buoy.
Do your products have caffeine?
The only product that contains caffeine is our Energy Drops, which is sourced from organic green tea.
“Electrolyte boost without any sweetness whatsoever.”
“Electrolyte boost you can add to coffee, tea, and even alcohol.”
“Drops supply calming energy and immune support.”
“Purposefully unflavored which means sugar-free, stevia, and sweetener-free.”
“Many of the 87 trace minerals in Buoy aren’t found in the conventional diet.”
“Anti-bloat liquid electrolyte drops."
“Buoy help broaden understanding of chronic illness.”
The world's first unflavored functional beverage additive.
“Buoy is also third-party tested, which isn’t common for electrolytes.”
Need more flexibility?
Shop a one-month supply of all electrolytes and rainforest wild foods, or Build Your Own Care Kit™ with up to three free gifts.
THE BUOY COMMUNITY
Real People, Real Health Journeys
* For eligible customers only