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51

fever

Worth a look

Shows low returns (0.0%), but soft demand (-56.2% this quarter) keeps it on the watch list.

Market size 96Growth 0Conversion 96Competition 50Returns 100Price range 52Avg price 51Brand share 20Review moat 26Quality gap 16

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Market size

Incredible$2.7M

$2.7M/yr · 1.7M searches

Conversion

Incredible13.1%

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

Price range

Good$5.66–$25.16

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

Avg price

Good$12.08

avg listing price — sweet spot $15–$100

Competition

Okay55%

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

Review moat

Okay3,903.1

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad92%

top-5 brand share — brand-locked demand

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

Growth

Bad-56.2%

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

Competition

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 rising

Sellers

660

Top-5 brand share

92%

Open market

5%

  • Tylenol39%
  • Mucinex25%
  • Amazon Basic Care21%
  • Boiron4%
  • Vicks4%
  • Amazon Basics3%
  • Open — no brand owns it (4 brands, 5%)

Product shelf

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

0%5%$135K10%$269K15%$404K20%$539K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 31 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -56.2% search growth over the last 90 days.
90K70KSpike '24Holiday '24Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb · busiest ÷ quietest = 5.4×

Reviews

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

What buyers love

Cold Relief18%

“Great for colds”

Efficiency15%

“Works perfectly”

Value For Money14%

“Very affordable”

Quality-Overall10%

“Best quality”

Advertised Vs Actual Product8%

“As described”

Cough Relief6%

“Controls cough”

Taste-Overall3%

“Great taste”

Sleep Quality3%

“helps me sleep”

Fever Relief2%

“It helps when you sick”

Sinus Relief2%

“Clears up my sinuses”

What buyers complain about

Taste-Overall14%

“Tastes Bad”

Functionality-Overall11%

“This hardly works at all”

Value For Money8%

“Very costly”

Cough Relief5%

“coughing more than I should”

Cold Relief3%

“Had a bad case of the flu”

Ease Of Use3%

“its hard to separate”

Quality-Overall3%

“Not as good as other brands”

Side Effects2%

“THIS PRODUCT MADE ME EXTREMELY ILL”

Dosage2%

“Not that many servings per bottle”

Ingredients-Overall2%

“Contains nothing”