GLP-1 SupplementUpdated: September 2026

Buoy Hydration Drops Review: The Point Is What Is Not In It

A liquid electrolyte with no sugar, no sweeteners and no flavour, added to whatever you are already drinking, which is exactly right for people whose taste and appetite have changed on medication.

4/5

Pros

  • +No sugar, no sweeteners and no flavourings at all
  • +Adds to any drink, including coffee and tea, without changing it
  • +87 trace minerals alongside the primary electrolytes
  • +120 servings from $30.03, around 25 cents a serving
  • +4.8 out of 5 across more than 5,400 reviews
  • +Company cites clinical work on hydrating 64 percent better than water alone

Cons

  • -Lower sodium than dedicated high-sodium electrolytes like LMNT
  • -A liquid dropper is less convenient than a stick pack for travel
  • -Trace mineral claims are more marketing than mechanism
  • -Does nothing for appetite, nutrients or muscle
  • -No GLP-1 specific trial
  • -Not FDA evaluated, like all dietary supplements
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Buoy Hydration Drops are a flavourless, sugar-free liquid electrolyte with 87 trace minerals, added to any drink, from $30.03 for 120 servings.

Overview

Buoy makes liquid electrolyte drops designed to be added to any beverage rather than mixed as a drink in their own right. The flagship formula contains ocean-sourced electrolytes and 87 trace minerals, with no sugar, no sweeteners and no flavourings. The company cites clinical work supporting a claim to hydrate 64 percent more than water alone. It sells from $30.03 for 120 servings, and holds 4.8 out of 5 across more than 5,400 reviews.

The absence of flavour is the whole proposition, and for this audience it is the right one. GLP-1 medications alter taste and cause nausea, and many people find sweetened electrolyte drinks actively unpleasant during treatment. A dropper that disappears into coffee, tea or plain water sidesteps that entirely. Buoy publishes content aimed specifically at GLP-1 users, including on semaglutide fatigue and hydration, which suggests the fit was noticed rather than invented.

Two things are worth being realistic about. The sodium content is lower than dedicated high-sodium products such as LMNT, which delivers 1,000mg per serving, so if heavy sweating or significant fluid loss is your situation Buoy may be under-dosed for it. And 87 trace minerals is a marketing figure more than a mechanism; the primary electrolytes do the work. Neither undermines the product, which addresses one problem cheaply and effectively without claiming anything about appetite or weight.

Buoy Hydration Drops at a Glance

DetailWhat Buoy Hydration Drops Publishes
Type of productLiquid electrolyte drops
PriceFrom $30.03 for 120 servings
Cost per servingAround 25 cents
ContainsOcean-sourced electrolytes and 87 trace minerals
Free fromSugar, sweeteners and flavourings
Hydration claimCited as hydrating 64 percent more than water alone
Customer rating4.8 out of 5 across more than 5,400 reviews
FormatDropper added to any drink
Sodium contentLower than dedicated high-sodium products such as LMNT
FDA evaluatedNo, as with all dietary supplements

What Is Actually in It

Formula and Format
  • Ocean-sourced electrolytes for fluid balance
  • 87 trace minerals alongside the primary electrolytes
  • No sugar, sweeteners or flavourings of any kind
  • 120 servings per bottle from $30.03
  • A dropper format that works in coffee, tea or water
  • Published content aimed specifically at GLP-1 users

Supplement or Medication?

A dietary supplement, and a straightforwardly nutritional one. Electrolytes replace what fluid loss removes. Nothing here acts on GLP-1, appetite or weight, and Buoy does not claim otherwise.

How You Buy It

1

Buy direct or on Amazon

Available from Buoy and Amazon at 120 servings a bottle.

2

Add to whatever you drink

The drops are flavourless, so coffee and tea work as well as water.

3

Use it when fatigue or cramps appear

Both are common and often fluid-related on a GLP-1.

4

Consider a higher-sodium option if you sweat heavily

LMNT delivers considerably more sodium per serving.

Who It Is Sold To

  • Adults on GLP-1 medication experiencing fatigue or cramps
  • No consultation or clinical assessment involved
  • Anyone who cannot tolerate sweetened electrolyte drinks
  • People on sodium-restricted diets should check with a clinician
  • Not appropriate as a substitute for prescribed obesity treatment
  • Persistent fatigue warrants a clinical conversation, not just electrolytes

Clinical Oversight and Evidence

Clinical Oversight

None. This is a retail supplement with no clinical involvement. If you have heart or kidney conditions, or are on a sodium-restricted diet, electrolyte supplementation is worth raising with your clinician.

Evidence

Modest and appropriately scoped. Buoy cites clinical work supporting its 64 percent hydration claim. The broader case, that GLP-1 medications increase the risk of dehydration and electrolyte imbalance through reduced intake and gastrointestinal losses, is well recognised and discussed by electrolyte brands and clinicians alike. No GLP-1 specific trial exists on this product.

Availability and Shipping

Where to Buy

Direct from Buoy and on Amazon, in 120-serving bottles.

Shipping

Direct-to-consumer and Amazon shipping for a shelf-stable liquid.

What You Get

  • A very large public review base at 5,400 reviews
  • Published educational content on GLP-1 hydration and fatigue
  • A format that works with any drink
  • Low cost per serving
  • Subscription options direct
  • No clinical support, monitoring or personalisation

Pricing

Among the cheapest things covered here on a per-serving basis, and one of the few solving a problem it can genuinely solve.

Product or PlanPublished PriceWhat It Covers
Hydration DropsFrom $30.03120 servings per bottle
Cost per servingAround 25 centsConsiderably cheaper than stick-pack competitors
On AmazonVaries120-serving bottles listed
SubscriptionAvailable directReduces the unit price

Pricing reflects what Buoy Hydration Drops published at the time of review and can change without notice. Confirm current pricing directly with the seller before buying.

Membership Fees

None. Subscription is optional and reduces the unit price.

Annual Cost

Roughly $90 to $120 a year at one serving daily, among the cheapest annual costs covered here.

Cancellation and Refund Policy

Cancellation

Subscriptions can be cancelled from your Buoy account. Amazon purchases involve no subscription.

Refunds

Buoy operates its own returns policy. Amazon purchases follow Amazon's policy.

Insurance, HSA and FSA

Insurance

Not applicable to a retail supplement.

HSA / FSA

Generally not eligible. Electrolyte supplements are usually excluded from HSA and FSA spending without a letter of medical necessity.

For a fuller explanation of how these accounts work with GLP-1 care, see our GLP-1 insurance, HSA and FSA guide.

Who Buoy Hydration Drops May Be Best For

May Be a Good Fit If
  • You are getting fatigue or cramps on a GLP-1
  • You cannot face sweetened electrolyte drinks
  • You want to add electrolytes to coffee or tea
  • You want a very low cost per serving
  • You avoid stevia, sugar alcohols and artificial sweeteners
  • You want a product that solves one thing properly
Limitations to Weigh
  • Lower sodium than dedicated high-sodium electrolyte products
  • A dropper is less travel-friendly than a stick pack
  • The 87 trace minerals figure is marketing rather than mechanism
  • Does nothing for appetite, nutrients or muscle
  • No GLP-1 specific trial
  • Persistent fatigue may have causes electrolytes will not fix

Alternatives to Consider

LMNT

1,000mg of sodium per serving, for heavier fluid losses.

SoWell

Physician-developed electrolytes formulated for GLP-1 users.

Bio.me GLP-1 Support

Electrolytes alongside protein and fibre in one powder.

Replenza GLP-1 Daily Support

Broader nutrient coverage including a drink mix.

You can also compare the whole field in our best GLP-1 supplements and GLP-1 supplement evidence review roundups.

Frequently Asked Questions

Why does the lack of flavour matter?

GLP-1 medications alter taste and cause nausea, and many people find sweetened electrolyte drinks unpleasant during treatment. A flavourless dropper disappears into whatever you are already drinking.

How much does it cost?

From $30.03 for 120 servings, which is around 25 cents a serving. That makes it one of the cheapest products covered here.

Is there enough sodium in it?

For ordinary daily use, generally yes. If you sweat heavily or have significant fluid losses, a dedicated high-sodium product such as LMNT, which delivers 1,000mg per serving, may suit you better.

What are the 87 trace minerals for?

Mostly marketing. The primary electrolytes do the work of fluid balance. The trace mineral count is a differentiator rather than a mechanism.

Will it help with weight loss?

No, and Buoy does not claim it will. It addresses hydration, which affects fatigue and cramps rather than weight.

Can I put it in coffee?

Yes, that is the point of the format. It has no flavour, so it works in coffee, tea, juice or plain water.

Is it FDA approved?

No. It is a dietary supplement, so it does not require FDA approval before marketing and its claims have not been evaluated by the FDA.

Our Verdict

Dehydration is a genuine and underrated problem on GLP-1 medication. People eat less, drink less, and lose fluid through nausea and altered bowel habits, and the fatigue and cramps that follow are often blamed on the drug when they are really a fluid and electrolyte problem. Buoy addresses it in the most practical way available: a flavourless, sugar-free, sweetener-free liquid you add to whatever you are already drinking. That matters more than it sounds. Most electrolyte products are sweetened, and sweetness is exactly what many people cannot face when nausea is the daily backdrop. At around 25 cents a serving across 120 servings, with 4.8 out of 5 from more than 5,400 reviews, it is cheap and well liked. It solves one narrow problem properly and makes no claims beyond it.

Disclosure: This review reflects our genuine assessment based on research, user feedback, and our evaluation criteria. Some links on this page may be affiliate links, meaning we may earn a commission if you make a purchase through them at no additional cost to you. This does not influence our editorial opinions or ratings.

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