Is knockout profitable to sell on Amazon United States?

The niche generates $559K/yr across 4 tracked products. 90-day search growth is +12.8%. Flapen's verdict: Worth a look (54/100).

How competitive is the knockout niche?

3 brands and 10 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in knockout?

Top complaints mined from reviews: Smell, Value For Money, Energy Level. The return rate is 0.1%.

What does it cost to enter the knockout niche?

Listings span $25.70–$58.40; the average listing price is $39.62 (sweet spot $15–$100). The average incumbent carries 1,578 reviews — the moat a new listing must climb.

knockout

Worth a look

Shows low returns (0.1%), but a concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Avg price

Incredible$39.62

avg listing price — sweet spot $15–$100

Price range

Incredible$25.70–$58.40

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

Conversion

Great11.2%

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

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Market size

Good$559K

$559K/yr · 126K searches

Review moat

Okay1,578.25

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+12.8%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, knockout is a $559K/yr Amazon United States market (126K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 54/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

knockout market data

Units sold / yr: 10K–13K; avg 1,500–2,000/product
Revenue / yr: $396K–$495K; units × avg price
Launch success: —; 0 of 0 new (360d)
Conversion rate: 11.2%
Avg BSR: #90
Page quality: 0%
Prime: 100%
Sponsored: 75%
Out of stock: 0.0%
Avg brand age: 74 months
Avg seller age: 152 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Virbac79%
NOK OUT12%
ROAR AMBITION8%

Demand

Weekly Amazon search volume, last 50 weeks — +12.8% search growth over the last 90 days.

Open Trend

Top knockout search terms

knockout33K/yr -14.6%0.5% conv.
knockout flea spray34K/yr +65.4%11.1% conv.
virbac knockout flea spray14K/yr +132.9%10.8% conv.
knock out10K/yr -19.9%1.8% conv.
knock out flea spray for home10K/yr +49.9%11.7% conv.
nok out5K/yr -1.2%11.5% conv.
nok out odor eliminator4K/yr -7.1%10.5% conv.
virbac knockout2K/yr +57.8%10.7% conv.
instant knockout3K/yr -42.6%5.5% conv.
instant knockout cut3K/yr -23.1%7.3% conv.

All search terms

Top knockout 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 4 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Virbac KNOCKOUT E.S. Area Treatment Carpet Spray Kills Fleas Flea Eggs Flea Larvae and Prevents Infestations 16 oz

Virbac$32.574.6★3,452 rev

Instant Knockout - Fat Burner Weight Loss Shredding Formula - All Natural Ingredients

ROAR AMBITION$58.403.5★305 rev

NOK OUT Odor Remover Pet Deodorizer and Cleaning Spray Made in the USA 32 Fluid Ounce Spray

NOK OUT$25.704.3★1,178 rev

NOK OUT Odor Remover Pet Deodorizer and Cleaning Spray Made in the USA 1 Gallon

NOK OUT$41.804.6★1,378 rev

Newest

by launch date

Instant Knockout - Fat Burner Weight Loss Shredding Formula - All Natural Ingredients

ROAR AMBITION$58.40305 rev

5y ago

NOK OUT Odor Remover Pet Deodorizer and Cleaning Spray Made in the USA 1 Gallon

NOK OUT$41.801,378 rev

13y ago

Virbac KNOCKOUT E.S. Area Treatment Carpet Spray Kills Fleas Flea Eggs Flea Larvae and Prevents Infestations 16 oz

Virbac$32.573,452 rev

18y ago

NOK OUT Odor Remover Pet Deodorizer and Cleaning Spray Made in the USA 32 Fluid Ounce Spray

NOK OUT$25.701,178 rev

21y ago

What buyers say about knockout

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

What buyers love

Ease Of Use27%

“Easy way to shop”

Ease Of Cleaning20%

“Easy use a lot less mess works well”

Spray/Flow7%

“I love the spray nozzle on it where you can spray anywhere with it”

Durability7%

“Been using it for years”

Quality-Overall7%

“Outstanding product”

Smell7%

“NOK OUT is *the* only product I have found that ACTUALLY gets rid of cat urine smell”

Value For Money7%

“is so worth it”

What buyers complain about

Smell43%

“Has an awful perfumy smell that just smelled like perfume trying to cover urine”

Value For Money13%

“Seems pricey,”

Energy Level10%

“not a single trace of energy or bust”

Functionality-Overall8%

“none of them worked as good as this one did”

Weight Loss5%

“Very small fat intake”

Advertised Vs Actual Product3%

“Did not receive any of the advertised benefits--it was a waste of money because I could not return it”

Instructions/User Manual/Troubleshooting3%

“some people dont read directions”

Sleep Quality3%

“I became sleepy”

Top return reasons

Leak-Proof40%

Smell27%

Defective Material/Parts20%

Spray/Flow13%

Common questions

Is knockout profitable to sell on Amazon United States?: The niche generates $559K/yr across 4 tracked products. 90-day search growth is +12.8%. Flapen's verdict: Worth a look (54/100).
How competitive is the knockout niche?: 3 brands and 10 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in knockout?: Top complaints mined from reviews: Smell, Value For Money, Energy Level. The return rate is 0.1%.
What does it cost to enter the knockout niche?: Listings span $25.70–$58.40; the average listing price is $39.62 (sweet spot $15–$100). The average incumbent carries 1,578 reviews — the moat a new listing must climb.