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

Market size 20Growth 21Conversion 43Competition 33Returns 100Price range 90Avg price 94Brand share 0Review moat 22Quality gap 72

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Avg price

Great$47.83

avg listing price — sweet spot $15–$100

Price range

Great$9.81–$87.59

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Okay3.5%

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

Competition

Okay65%

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

Review moat

Bad8,623.64

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-7.9%

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

Market size

Bad$78K

$78K/yr · 47K searches

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

5 falling

Sellers

34

Top-5 brand share

100%

Open market

0%

  • GNC76%
  • Nugenix11%
  • Nutricost5%
  • Prime Labs5%
  • Kaya Naturals2%

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%10%$8K20%$16K30%$23K40%$31K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 14 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — -7.9% search growth over the last 90 days.
15K10KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Mar, Oct, Nov, Dec · busiest ÷ quietest = 10.3×

Reviews

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

What buyers love

Quality-Overall21%

“Excellent Product”

Energy Level15%

“Energy level has improved”

Vitamin8%

“Excellent vitamins”

Efficiency8%

“Effective”

Value For Money7%

“Very affordable”

Advertised Vs Actual Product6%

“Better than advertised”

Side Effects3%

“No odd side effects”

Nutritional Content2%

“The supplement portion of this is great”

Strength2%

“Very powerful”

Hormonal Balance2%

“Hormone replacement therapy”

What buyers complain about

Functionality-Overall22%

“Did not work”

Value For Money10%

“It's not a great value”

Dosage7%

“Been taking this supplement and it does nothing”

Energy Level6%

“Haven't noticed my energy levels change”

Side Effects6%

“Looking for the cause of the edema found this product can have this adverse effect”

Quality-Overall4%

“Low quality waste of money”

Vitamin3%

“Questionable vitamin”

Advertised Vs Actual Product3%

“Does not work as advertised”

Sexual Wellness2%

“Decrease in libido, decrease in sex drive”

Acid Regulator/Stomach Ache Relief2%

“Really upset stomach”

Top return reasons

Side Effects21%
Functionality-Overall21%
Ingredients-Overall14%
Value For Money14%
Joint Pain14%
Heart Health7%
Product Condition7%