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calprofen

Skip it

Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.

Market size 79Growth 21Conversion 100Competition 39Returns 100Price range 36Avg price 15Brand share 6Review moat 33Quality gap 19

Conversion

Incredible21.5%

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

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Market size

Great£1.1M

£1.1M/yr · 940K searches

Competition

Okay61%

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

Price range

Okay£1.56–£22.51

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

Review moat

Okay3,163.89

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-8.3%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Avg price

Bad£5.36

avg listing price — sweet spot $15–$100

Brand share

Bad98%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, calprofen is a £1.1M/yr Amazon United Kingdom market (940K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Feb–Mar–Jul. Verdict: Skip it — 48/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

calprofen market data

Units sold / yr
200K–250K
avg 12,500–15,000/product
Revenue / yr
£1.1M–£1.3M
units × avg price
Conversion rate
21.5%
Avg BSR
#6
Page quality
0%
Prime
95%
Sponsored
63%
Out of stock
0.0%
Avg brand age
76 months
Avg seller age
158 days

Competition & brand share

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 flat

Sellers

69

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

61%

Top 20: 100%

Open market

1%

  • Nurofen59%
  • Imodium29%
  • BECKYS CHOICE4%
  • CALPROFEN4%
  • Amazon Basics2%
  • Galpharm1%
  • Open — no brand owns it (1 brand, 1%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.3% search growth over the last 90 days.
18K13KSpike '24Holiday '24Spike '25Holiday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Feb, Mar, Jul · busiest ÷ quietest = 2.7×

Top calprofen search terms

  • imodium instants203K/yr
  • nurofen181K/yr
  • nurofen for children92K/yr
  • medication & remedies96K/yr
  • medicine45K/yr
  • ibuprofen kids31K/yr
  • nurofen express38K/yr
  • nurofen tablets for adults21K/yr
  • over-the-counter medication13K/yr
  • imodium instants 36 pack23K/yr
All search terms

Top calprofen 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%10%£108K20%£216K30%£325K40%£433K1001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about calprofen

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

What buyers love

Value For Money21%

“Fair Price”

Advertised Vs Actual Product13%

“As advertised”

Quality-Overall12%

“Just as good as the branded one's”

Efficiency9%

“Effective”

Ease Of Use6%

“Ease of Use”

Ease Of Chewing/Swallowing4%

“ease of swallow many thanks pete”

Taste-Overall4%

“Work extremely well very easy to take and taste minty”

Joint Pain3%

“Works well for joints that are close to surface”

Fever Relief2%

“Really effective medicine for helping reduce fever”

Tooth Sensitivity2%

“Relieves toothache, works fairly quickly”

What buyers complain about

Value For Money17%

“Bit pricey”

Pain Relief-Overall12%

“Did not give satisfactory pain relief”

Ease Of Use7%

“no use”

Dosage5%

“I hate taking tablets”

Size-Overall5%

“The tablets themselves are small”

Functionality-Overall4%

“Didnt work gor me not dtrong enough my psin”

Taste-Overall4%

“Tastes awful”

Acid Regulator/Stomach Ache Relief3%

“stomach ulcers are not good”

Flavor3%

“Finally a different flavour”

Sleep Quality2%

“Made sleepy”

Top return reasons

Size-Overall53%
Quality-Overall17%
Ease Of Use10%
Weight Heavy7%
Advertised Vs Actual Product3%
Material Quality3%
Exercise/Sports Suitability2%
Stitch/Finish/Polish2%
Leak-Proof2%

Common questions

Is calprofen profitable to sell on Amazon United Kingdom?
The niche generates £1.1M/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -8.3%. Flapen's verdict: Skip it (48/100).
How competitive is the calprofen niche?
7 brands and 69 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in calprofen?
Top complaints mined from reviews: Value For Money, Pain Relief-Overall, Ease Of Use. The return rate is 0.0%.
When does demand for calprofen peak?
Demand peaks in Feb–Mar–Jul; the busiest month runs 2.7× the quietest.
What does it cost to enter the calprofen niche?
Listings span £1.56–£22.51; the average listing price is £5.36 (sweet spot $15–$100). The average incumbent carries 3,164 reviews — the moat a new listing must climb.