Is electrolyte test strips profitable to sell on Amazon United States?

The niche generates $34K/yr across 25 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -41.8%. Flapen's verdict: Skip it (46/100).

How competitive is the electrolyte test strips niche?

19 brands and 47 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 67% of demand.

What do buyers complain about in electrolyte test strips?

Top complaints mined from reviews: Color, Functionality-Overall, Accuracy-Overall. The return rate is 1.1%.

When does demand for electrolyte test strips peak?

Demand peaks in Jan–Nov; the busiest month runs 2.0× the quietest.

What does it cost to enter the electrolyte test strips niche?

Listings span $5.78–$179.03; the average listing price is $23.25 (sweet spot $15–$100). The average incumbent carries 2,259 reviews — the moat a new listing must climb.

electrolyte test strips

Skip it

Soft demand (-41.8% this quarter) — this niche doesn't clear our bar today.

Avg price

Incredible$23.25

avg listing price — sweet spot $15–$100

Quality gap

Great4.0★

avg incumbent rating — lower means beatable quality

Returns

Great1.1%

return rate — above 5% kills the launch gate

Brand share

Good67%

top-5 brand share — brands hold most of the demand

Competition

Good53%

top-5 click share — leaders hold, buyers still browse

Price range

Okay$5.78–$179.03

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Okay2,259.2

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad1.5%

search→purchase rate — share of searches ending in a sale

Market size

Bad$34K

$34K/yr · 101K searches

Growth

Bad-41.8%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United States niche tracking, electrolyte test strips is a $34K/yr Amazon United States market (101K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Jan–Nov. Verdict: Skip it — 46/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

electrolyte test strips market data

Units sold / yr: 2K–3K; avg 0–100/product
Revenue / yr: $47K–$58K; units × avg price
Conversion rate: 1.5%
Avg BSR: #154
Page quality: 0%
Prime: 92%
Sponsored: 88%
Out of stock: 11.8%
Avg brand age: 52 months
Avg seller age: 165 days

Competition & brand share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

19 rising

Sellers

Top-5 brand share

67%

Top 20: 100%

Top-5 click share

53%

Top 20: 94%

Open market

27%

RPOMU19%
DIAGNOX HEALTH16%
Vivoo15%
Palinoia11%
EISCO7%
Just Fitter6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -41.8% search growth over the last 90 days.

Peak months: Jan, Nov · busiest ÷ quietest = 2.0×

Open Trend

Top electrolyte test strips search terms

sodium test strips for humans14K/yr -19.3%0.9% conv.
vivoo urine test strips18K/yr -57.4%1.2% conv.
how to test sodium levels at home11K/yr -17.9%0.3% conv.
vivoo11K/yr -53.2%1.1% conv.
electrolyte test strips5K/yr -1.4%2.2% conv.
sodium test strips4K/yr +3.5%1.3% conv.
sodium level tester9K/yr -45.9%0.8% conv.
electrolyte test3K/yr -12.0%0.6% conv.
sodium urine test strips3K/yr -11.5%0.9% conv.
vivoo urine test4K/yr -49.4%0.2% conv.

All search terms

Top electrolyte test strips products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Urine Test Strips 14 Parameters 100 Count

RPOMU$23.173.4★101 rev

Diagnox Health Hydration Test Strips Specific Gravity Urine Test Strips to Track Hydration Levels Instant Results in 45 Seconds Individually Wrapped Dehydration Testing Kit 30 Tests

DIAGNOX HEALTH$16.433.8★122 rev

14-in-1 Full Panel Urine Test Strips for Urinalysis | 120 Strips in Resealable Pouches Test for Kidney Health Liver Function UTI Ketosis Hydration and Protein Levels

Palinoia$28.894.0★182 rev

pH Test Strips for Testing Alkaline and Acid Levels in The Body. Track & Monitor Your pH Level Using Saliva and Urine. pH Tester for Highly Accurate Results in Seconds.

Just Fitter$15.794.4★23,826 rev

Vivoo Ovulation Test Strips and Pregnancy Test Kit 25 LH Ovulation Tests + 5 HCG Pregnancy Tests + 30 Cups | 99.1% Accurate | 5-Min Results | Free App Cycle Tracker

Vivoo$9.054.4★30 rev

Newest

by launch date

Vivoo UTI Test Strips for Women & Men At-Home Urinary Tract Infection Test Kit | Leukocytes & Nitrites Detection | Results in 60 Seconds | 3 Test Strips | Fast & Easy to Use

Vivoo$8.2421 rev

4mo ago

Cosmid Fluurescein Sodium Opthalmic Strips (100 Pcs)

Cosmid$16.892 rev

5mo ago

14-in-1 Urine Test Strips Full Panel 100 Count Urinalysis Testing for General Health Kidney Liver and UTI Screening

Palinoia$26.4347 rev

7mo ago

YINMIK Food Salinity Meter Salt Meter Digital Salt Tester for Food Food Sodium Tester Sodium Checker at Home with 3 Salt Modes - PPT% SG Portable Sodium Chloride Reader Sodium Tester for Water

YINMIK$38.0128 rev

8mo ago

AssayMe 10-in-1 Urine Test | AI Scan Ketones pH & Wellness Score

AssayMe$22.8523 rev

12mo ago

What buyers say about electrolyte test strips

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use25%

“easy to read”

Advertised Vs Actual Product10%

“Worked as designed”

Accuracy-Overall9%

“Pretty Accurate”

Value For Money8%

“Excellent value for money”

Quality-Overall6%

“Excellent product”

Efficiency5%

“Very effective n efficient”

Color5%

“the accuracy of its colors”

Health Monitoring4%

“I like every health test”

Instructions/User Manual/Troubleshooting4%

“The instructions are clear”

Ease Of Cleaning2%

“Easy to use and keep clean”

What buyers complain about

Color24%

“Colors not matching”

Functionality-Overall14%

“Do not work well”

Accuracy-Overall10%

“Not sure how accurate this is”

Measurement/Reading Accuracy8%

“Not for accurate readings”

Ease Of Use6%

“difficult to read”

Value For Money5%

“Not useable and a waste of money”

Advertised Vs Actual Product3%

“The don't match”

Quality-Overall3%

“This is either poor quality control, a mfg”

Color Fading/Discoloration2%

“they turned gray within a few months”

Instructions/User Manual/Troubleshooting2%

“the instruction sheet is way to small to read”

Top return reasons

Functionality-Overall25%

Advertised Vs Actual Product16%

Measurement/Reading Accuracy14%

Color12%

Accuracy-Overall10%

Certifications4%

Blood Sugar Level3%

Value For Money3%