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phenaprin

Skip it

A concentrated shelf (top 5 take 89% of clicks) — this niche doesn't clear our bar today.

Market size 15Growth 15Conversion 64Competition 9Returns 100Price range 91Avg price 95Brand share 18Review moat 25Quality gap 98

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Quality gap

Incredible3.7★

avg incumbent rating — lower means beatable quality

Avg price

Incredible$33.88

avg listing price — sweet spot $15–$100

Price range

Great$12.87–$59.64

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

Conversion

Good5.7%

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

Review moat

Bad4,757

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad93%

top-5 brand share — brand-locked demand

Market size

Bad$61K

$61K/yr · 32K searches

Growth

Bad-21.0%

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

Competition

Bad89%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, phenaprin is a $61K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 93% of demand. Verdict: Skip it — 44/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

phenaprin market data

Units sold / yr
2K–3K
avg 100–250/product
Revenue / yr
$68K–$85K
units × avg price
Conversion rate
5.7%
Avg BSR
#260
Page quality
0%
Prime
88%
Sponsored
75%
Out of stock
0.0%
Avg brand age
51 months
Avg seller age
127 days

Competition & brand share

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

7

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

3%

  • PhenAprin71%
  • SutraHealth10%
  • Nutricost4%
  • Phenelite4%
  • Generic4%
  • Vitamart4%
  • Open — no brand owns it (1 brand, 3%)

Demand & seasonality

Weekly Amazon search volume, last 97 weeks — -21.0% search growth over the last 90 days.
900700Spike '25Prime Day '25Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Top phenaprin search terms

  • phenaprin18K/yr
  • phenaprin weight loss pills6K/yr
  • phenrx5K/yr
  • phentremin - official weight loss - maximum strength4K/yr
All search terms

Top phenaprin 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.

0%20%$12K40%$25K60%$37K80%$49K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 8 tracked products in this niche — three views at once, no toggling.

What buyers say about phenaprin

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

What buyers love

Weight Loss30%

“This works great for weight loss”

Quality-Overall19%

“Great product”

Energy Level10%

“had plenty of energy as well”

Focus Enhancement5%

“it helps me focus”

Regulates Digestion5%

“Has helped with mood, hunger and bowel related issues”

Nutritional Content4%

“It helped me not eat as much”

Value For Money2%

“Phenaprin feels like a great value compared to similar products Ive tried”

Side Effects2%

“There are no headaches”

Water Resistance2%

“Help with my water weight”

Vitamin2%

“its a good suppliment”

What buyers complain about

Functionality-Overall23%

“Didn't work”

Side Effects18%

“I get some nausea”

Weight Loss15%

“No weight loss”

Acid Regulator/Stomach Ache Relief7%

“I cannot tell you the pain in my stomach I felt”

Value For Money6%

“Waste of money”

Nutritional Content4%

“it is supposed to suppress your hunger does not do that for me”

Energy Level4%

“I didnt feel like I got any extra energy”

Fever Relief3%

“did not help me it make me really sick”

Sleep Quality2%

“It does suppress hunger for a while then makes you extremely sleepy”

Dosage2%

“I dont take it everyday as noted”

Top return reasons

Size-Overall83%
Color3%
Stiffness3%
Functionality-Overall3%
Value For Money3%
Shape/Style3%
Breathability1%
Material Quality1%
Width1%
Advertised Vs Actual Product1%

Common questions

Is phenaprin profitable to sell on Amazon United States?
The niche generates $61K/yr across 8 tracked products. 90-day search growth is -21.0%. Flapen's verdict: Skip it (44/100).
How competitive is the phenaprin niche?
7 brands and 7 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in phenaprin?
Top complaints mined from reviews: Functionality-Overall, Side Effects, Weight Loss. The return rate is 0.1%.
When does demand for phenaprin peak?
Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the phenaprin niche?
Listings span $12.87–$59.64; the average listing price is $33.88 (sweet spot $15–$100). The average incumbent carries 4,757 reviews — the moat a new listing must climb.