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50

phentermine

Worth a look

Shows low returns (0.1%), but soft demand (-18.3% this quarter) keeps it on the watch list.

Market size 49Growth 16Conversion 16Competition 24Returns 100Price range 94Avg price 95Brand share 51Review moat 22Quality gap 97

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Quality gap

Incredible3.8★

avg incumbent rating — lower means beatable quality

Avg price

Incredible$36.31

avg listing price — sweet spot $15–$100

Price range

Great$14.65–$69.79

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

Brand share

Good74%

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

Market size

Okay$265K

$265K/yr · 574K searches

Competition

Bad72%

top-5 click share — a locked-up shelf

Review moat

Bad10,183.19

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-18.3%

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

Conversion

Bad1.3%

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

Competition

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

13 rising

Sellers

42

Top-5 brand share

74%

Open market

21%

  • PhenAprin35%
  • PhenQ18%
  • Vitamart9%
  • Generic7%
  • Phenelite6%
  • KAKA DR5%

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%$26K20%$53K30%$79K40%$106K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -18.3% search growth over the last 90 days.
30K20KHoliday '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Feb · busiest ÷ quietest = 1.9×

Reviews

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

What buyers love

Weight Loss25%

“Great for weight loss”

Quality-Overall9%

“My personal experience has been satisfactory”

Energy Level9%

“Boosts energy”

Nutritional Content7%

“Excellent dietary supplement”

Side Effects5%

“It didn't cause me any jitters or severe side effects—something I value highly in products of this type”

Regulates Digestion4%

“Works as remedy for intermittent constipation”

Value For Money4%

“Great value for the money”

Ease Of Use4%

“Easy to use”

Efficiency3%

“Its a clean”

Ease Of Chewing/Swallowing3%

“They are not hard to swallow”

What buyers complain about

Functionality-Overall22%

“Doest Work”

Weight Loss16%

“Certainly does not control my appetite”

Side Effects10%

“I suddenly became very nauseous”

Value For Money6%

“Also way too expensive”

Nutritional Content5%

“Didn't curb my appetite”

Acid Regulator/Stomach Ache Relief4%

“Hurt stomach”

Energy Level3%

“No energy”

Dosage3%

“these pills didnt work for me”

Heart Health2%

“I experienced an accelerated heart rate”

Regulates Digestion2%

“Painful constipation”

Top return reasons

Functionality-Overall24%
Size-Overall18%
Waist Fit18%
Dosage12%
Side Effects9%
Value For Money6%
Comfort-Overall6%
Length6%
Fever Relief3%