Is water out profitable to sell on Amazon United States?

The niche generates $315K/yr across 10 tracked products. 90-day search growth is +18.4%. Flapen's verdict: Worth a look (55/100).

How competitive is the water out niche?

6 brands and 34 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 90% of demand.

What do buyers complain about in water out?

Top complaints mined from reviews: Functionality-Overall, Side Effects, Regulates Digestion. The return rate is 0.1%.

When does demand for water out peak?

Demand is steady year-round — the busiest month runs 1.8× the quietest.

What does it cost to enter the water out niche?

Listings span $8.92–$32.20; the average listing price is $17.04 (sweet spot $15–$100). The average incumbent carries 4,250 reviews — the moat a new listing must climb.

water out

Worth a look

Shows low returns (0.1%), but a concentrated shelf (top 5 take 85% of clicks) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible12.3%

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

Avg price

Great$17.04

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$8.92–$32.20

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

Market size

Good$315K

$315K/yr · 150K searches

Growth

Okay+18.4%

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

Brand share

Okay90%

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

Review moat

Bad4,250.4

avg incumbent reviews — the moat a new listing must climb

Competition

Bad85%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, water out is a $315K/yr Amazon United States market (150K searches/yr). The top 5 brands hold 90% of demand. Verdict: Worth a look — 55/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

water out market data

Units sold / yr: 15K–20K; avg 1,250–1,500/product
Revenue / yr: $256K–$341K; units × avg price
Conversion rate: 12.3%
Avg BSR: #200
Page quality: 0%
Prime: 100%
Sponsored: 70%
Out of stock: 0.0%
Avg brand age: 67 months
Avg seller age: 168 days

Competition & brand share

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

Top-5 brand share

90%

Top 20: 92%

Top-5 click share

85%

Top 20: 100%

Open market

Maximum Human Performance51%
Natures Craft28%
--8%
Diurex4%
NOW Foods3%
ZHOU3%
Open — no brand owns it (2%)

Demand & seasonality

Weekly Amazon search volume, last 102 weeks — +18.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.8×

Open Trend

Top water out search terms

xpel32K/yr +21.7%7.0% conv.
furosemide26K/yr -3.9%0.8% conv.
water away22K/yr +15.8%12.9% conv.
xpel diuretic11K/yr +145.5%20.4% conv.
water away pills maximum strength10K/yr +104.4%14.7% conv.
expel9K/yr +31.6%4.3% conv.
expel water pills5K/yr +72.3%25.3% conv.
furosemida 20 mg5K/yr -6.5%0.2% conv.
furosemida6K/yr +7.2%0.8% conv.
furosemide 20 mg5K/yr -12.2%0.4% conv.

All search terms

Top water out 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Maximum Human Performance Xpel Maximum Strength Diuretic Water Pills for Water Retention Relief Weight loss Support with Vitamin B-6 Potassium Dandelion Root 80 Capsules

Maximum Human Performance$16.114.3★4,417 rev

Water Away Herbal Diuretic Pills High Strength - Fluid Retention Supplement with Dandelion Leaf Extract & Green Tea for Bloating Relief for Women & Men - Capsules for Leg & Feet Swelling - 60 Count

Natures Craft$13.404.1★7,448 rev

Water Away Herbal Diuretic Pills High Strength - Fluid Retention Supplement with Dandelion Leaf Extract & Green Tea for Bloating Relief for Women & Men - Capsules for Leg & Feet Swelling - 90 Count

--$17.194.1★7,448 rev

Water Away Supplement for Fast Bloating and Swelling Relief Pure Natural Diuretic Pills Reduce Retention Support Weight Loss Boost Energy Levels - 60 Count

Natures Craft$10.244.1★451 rev

Diurex Ultra Re-Energizing Water Pills - Relieve Water Bloat - Feel Better & Less Heavy - 80 Count

Diurex$8.924.3★17,539 rev

Newest

by launch date

MHP Xpel Maximum Strength Diuretic Water Pills for Water Retention Relief Caffeine-Free with Vitamin B-6 Potassium Dandelion Root 80 Capsules

Maximum Human Performance$16.05112 rev

2y ago

Water Away Herbal Diuretic Pills High Strength - Fluid Retention Supplement with Dandelion Leaf Extract & Green Tea for Bloating Relief for Women & Men - Capsules for Leg & Feet Swelling - 90 Count

--$17.197,448 rev

7y ago

XPEL Ceramic Boost Spray Coating 16oz - Silicon Dioxide Car Detailing Spray Beads and Repels Water Dust Lint and Protects Against Debris - Safe for Cars Trucks Motorcycles RVs & More

XPEL$26.41651 rev

8y ago

Water Away Herbal Diuretic Pills High Strength - Fluid Retention Supplement with Dandelion Leaf Extract & Green Tea for Bloating Relief for Women & Men - Capsules for Leg & Feet Swelling - 60 Count

Natures Craft$13.407,448 rev

9y ago

Water Away Supplement for Fast Bloating and Swelling Relief Pure Natural Diuretic Pills Reduce Retention Support Weight Loss Boost Energy Levels - 60 Count

Natures Craft$10.24451 rev

10y ago

What buyers say about water out

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

What buyers love

Efficiency15%

“Effective results”

Advertised Vs Actual Product13%

“It works as advertised”

Value For Money10%

“Good value for the money”

Quality-Overall9%

“Excellent product”

Side Effects6%

“No side effects”

Ease Of Use4%

“Easy to use”

Energy Level3%

“Works, gives you energy, and makes you drink more water”

Acid Regulator/Stomach Ache Relief3%

“Great for bloating”

Paint Quality3%

“I find the Boost spray leaves a very slick surface that really does enhance the ceramic coating properties”

Weight Loss3%

“I was finally losing the water weight I was retaining”

What buyers complain about

Functionality-Overall43%

“Didn't work for me”

Side Effects5%

“the doctors said they would worsen my condition”

Regulates Digestion4%

“Caffeine alone isnt a super effective diuretic”

Advertised Vs Actual Product4%

“Misleading”

Value For Money4%

“WASTE OF MONEY”

Water Resistance3%

“Doesnt seem to have hydrophobic properties as described”

Stress/Anxiety3%

“my anxiety was very high”

Weight Loss3%

“which normally makes me lose a lot of water weight”

Blood Pressure3%

“I'm not sure if anyone else is taking this to manage blood pressure this is why I'm taking Water Out”

Nutritional Content3%

“then you're also missing the health benefits of coffee or tea”

Top return reasons

Functionality-Overall21%

Leak-Proof17%

Advertised Vs Actual Product13%

Value For Money13%

Spray/Flow8%

Size-Overall8%

Wet Cleaning4%

Stain Resistance4%

Product Condition4%

Calcium4%

Common questions

Is water out profitable to sell on Amazon United States?: The niche generates $315K/yr across 10 tracked products. 90-day search growth is +18.4%. Flapen's verdict: Worth a look (55/100).
How competitive is the water out niche?: 6 brands and 34 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in water out?: Top complaints mined from reviews: Functionality-Overall, Side Effects, Regulates Digestion. The return rate is 0.1%.
When does demand for water out peak?: Demand is steady year-round — the busiest month runs 1.8× the quietest.
What does it cost to enter the water out niche?: Listings span $8.92–$32.20; the average listing price is $17.04 (sweet spot $15–$100). The average incumbent carries 4,250 reviews — the moat a new listing must climb.