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55

menstrual cups

Worth a look

Shows low returns (0.5%), but soft demand (-3.6% this quarter) keeps it on the watch list.

Market size 49Growth 23Conversion 66Competition 51Returns 98Price range 54Avg price 74Brand share 45Review moat 25Quality gap 76

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good£14.90

avg listing price — sweet spot $15–$100

Conversion

Good5.9%

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

Price range

Good£2.41–£29.92

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

Competition

Good54%

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

Market size

Okay£269K

£269K/yr · 304K searches

Brand share

Okay78%

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

Review moat

Bad4,650.79

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-3.6%

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

According to Flapen's Amazon United Kingdom niche tracking, menstrual cups is a £269K/yr Amazon United Kingdom market (304K searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 55/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

menstrual cups market data

Units sold / yr
15K–20K
avg 250–500/product
Revenue / yr
£224K–£298K
units × avg price
Conversion rate
5.9%
Avg BSR
#27
Page quality
0%
Prime
100%
Sponsored
83%
Out of stock
6.8%
Avg brand age
53 months
Avg seller age
187 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

22

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

54%

Top 20: 96%

Open market

14%

  • Mooncup27%
  • SHORDY19%
  • ZVZK16%
  • EcoBlossom8%
  • KAVODA8%
  • saalt7%
  • Open — no brand owns it (6 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.6% search growth over the last 90 days.
10K6KPrime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top menstrual cups search terms

  • menstrual cups123K/yr
  • period cup38K/yr
  • mooncup28K/yr
  • menstrual cup40K/yr
  • moon cup19K/yr
  • diva cup13K/yr
  • saalt menstrual cup13K/yr
  • period cups for women10K/yr
  • moon cups for periods11K/yr
  • saalt3K/yr
All search terms

Top menstrual cups 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%4%£11K8%£22K12%£32K16%£43K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about menstrual cups

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

What buyers love

Quality-Overall18%

“Perfect inversion, perfect quality and perfect pack”

Leak-Proof11%

“never leaks”

Comfort-Overall11%

“Very comfortable”

Ease Of Use9%

“I found it fairly easy to insert”

Value For Money7%

“Saves money”

Size-Overall5%

“I definitely recommend getting this its great it fits brilliantly I have no trouble putting in or taking out its really easy”

Durability3%

“It lasted me about a year”

Soft Feel3%

“The top layer of cotton is pleasant to the body”

Advertised Vs Actual Product2%

“Does what it says”

Menstrual Issues2%

“Lifesaver for women”

What buyers complain about

Size-Overall8%

“Theyre a little bit tight on the leg even though I bought my normal size”

Ease Of Use8%

“can be tough to get into position”

Leak-Proof7%

“Leaked”

Comfort-Overall6%

“uncomfortable”

Functionality-Overall6%

“Cup does not work”

Value For Money3%

“Expensive”

Hard Feel3%

“the cups seem a bit tough”

Material Quality3%

“it doesnt feel like silicone instead it is harder like plastic”

Allergies3%

“but getting irritation spots on my down below”

Pain Relief-Overall3%

“which makes it painful to put in and very painful to pull out”

Top return reasons

Size-Overall62%
Functionality-Overall8%
Leak-Proof4%
Product Condition3%
Ease Of Use3%
Pain Relief-Overall2%
Advertised Vs Actual Product2%
Thickness2%
Smell2%
Comfort-Overall2%

Common questions

Is menstrual cups profitable to sell on Amazon United Kingdom?
The niche generates £269K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.6%. Flapen's verdict: Worth a look (55/100).
How competitive is the menstrual cups niche?
12 brands and 22 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in menstrual cups?
Top complaints mined from reviews: Size-Overall, Ease Of Use, Leak-Proof. The return rate is 0.5%.
When does demand for menstrual cups peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the menstrual cups niche?
Listings span £2.41–£29.92; the average listing price is £14.90 (sweet spot $15–$100). The average incumbent carries 4,651 reviews — the moat a new listing must climb.