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Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 18Growth 4Conversion 95Competition 13Returns 100Price range 93Avg price 95Brand share 0Review moat 54Quality gap 47

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Conversion

Incredible12.6%

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

Avg price

Incredible$35.98

avg listing price — sweet spot $15–$100

Price range

Great$12.71–$96.09

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

Review moat

Good1,355.22

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$72K

$72K/yr · 16K searches

Competition

Bad85%

top-5 click share — a locked-up shelf

Growth

Bad-42.6%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

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

Brands

5 falling

Sellers

27

Top-5 brand share

100%

Open market

0%

  • NOW Foods58%
  • Pure Encapsulations26%
  • Life Extension7%
  • NutriWorth5%
  • Source Naturals4%

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%15%$11K30%$22K45%$33K60%$43K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — -42.6% search growth over the last 90 days.
2K2KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Sep · busiest ÷ quietest = 5.1×

Reviews

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

What buyers love

Stress/Anxiety27%

“Great anti anxiety treatment”

Quality-Overall15%

“Excellent product”

Sleep Quality8%

“Helps a lot with sleeping”

Side Effects7%

“have had good results”

Vitamin4%

“Great supplement”

Fever Relief3%

“Helps hot flashes”

Weight Loss3%

“Helps reduce your appetite”

Heart Health3%

“Really helps lower cortisol levels”

Focus Enhancement3%

“My mood overall feels positive”

Advertised Vs Actual Product2%

“Does what it's supposed to do”

What buyers complain about

Functionality-Overall26%

“Didn't work”

Side Effects15%

“pretty indifferent as I never felt any of the effects”

Stress/Anxiety8%

“Finished bottle & I never noticed a curb to my stress-eating unfortunately”

Weight Loss7%

“No change in energy or weight”

Heart Health6%

“Gave me heartburn”

Dosage5%

“I can't take these pills”

Sleep Quality3%

“It does seem to make me sleepy though”

Advertised Vs Actual Product3%

“It is misleading to claim such high purity when the capsules are filled with extra ingredients”

Ingredients-Overall3%

“the ingredient list tells a different story”

Smell2%

“This last one has no smell/taste whatsoever”

Top return reasons

Vitamin100%