milk collection shells
Skip itA small market ($33K/yr) — this niche doesn't clear our bar today.
Returns
Great1.1%return rate — above 5% kills the launch gate
Conversion
Great10.5%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Price range
Good£5.43–£25.29cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£11.92avg listing price — sweet spot $15–$100
Review moat
Okay2,168.67avg incumbent reviews — the moat a new listing must climb
Competition
Bad71%top-5 click share — a locked-up shelf
Brand share
Bad90%top-5 brand share — brand-locked demand
Growth
Bad-25.2%90-day search growth — must beat 0% to launch
Market size
Bad£33K£33K/yr · 26K searches
According to Flapen's Amazon United Kingdom niche tracking, milk collection shells is a £33K/yr Amazon United Kingdom market (26K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 43/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
milk collection shells market data
- Units sold / yr
- 2K–2K
- avg 100–250/product
- Revenue / yr
- £18K–£24K
- units × avg price
- Conversion rate
- 10.5%
- Avg BSR
- #36
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 9.6%
- Avg brand age
- 48 months
- Avg seller age
- 192 days
Competition & brand share
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 flat
Sellers
14
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
71%
Top 20: 100%
Open market
7%
- Elvie45%
- Lictin15%
- haakaa14%
- Medela12%
- Aolso5%
- KooingTech3%
- Open — no brand owns it (3 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -25.2% search growth over the last 90 days.Peak months: Aug, Sep · busiest ÷ quietest = 1.7×
Top milk collection shells search terms
- breast shells milk collection4K/yr
- breast shells7K/yr
- elvie catch5K/yr
- milk collection shells10K/yr
- elvie catch breast milk collection cups1K/yr
Top milk collection shells 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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Elvie Catch Breast Milk Collector Shells 2X Silicone Milk Collection Cups
Elvie£16.404.4★4,028 rev
Medela in-Bra Breast Milk Collector Leak-Proof Wearable Design with Flexible Plug Anatomic Shape Made Without BPA Easy to Clean & Dishwasher Safe 30 mL Capacity
Medela£9.534.4★5,663 rev
Elvie Pump Nursing Bra Extender & Strap Adjuster Clips 4 Pack
Elvie£10.904.5★4,789 rev
haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 1PC
haakaa£12.544.5★837 rev
Lictin Milk Collection Shells 2PCS Milk Collector 70ML Milk Catcher Silicone Breast Milk Collector Milk Savers for Breastfeeding with 10 Breast Milk Storage Bags(Silicone Storage Box)
Lictin£11.874.3★2,481 rev
Newest
by launch date
Lictin Milk Collection Shells 2PCS Milk Collector 60ML Milk Catcher Silicone Breast Milk Collector Milk Savers for Breastfeeding with 10 Breast Milk Storage Bags(Silicone Storage Box)
Lictin£10.624,066 rev
Breast Milk Collector Breastfeeding Breast Shells Milk Collection Shells Milk Catchers Breastfeeding BPA Free Reusable Soft Silicone for Breastfeeding Wear Outdoors Reusable Breast Pads Maternity
Porwke£7.9913 rev
Medela in-Bra Breast Milk Collector Leak-Proof Wearable Design with Flexible Plug Anatomic Shape Made Without BPA Easy to Clean & Dishwasher Safe 30 mL Capacity
Medela£9.535,663 rev
haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 1PC
haakaa£12.54837 rev
haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 2PCS
haakaa£18.96837 rev
Trending
90-day click momentumBreast Milk Collector Breastfeeding Breast Shells Milk Collection Shells Milk Catchers Breastfeeding BPA Free Reusable Soft Silicone for Breastfeeding Wear Outdoors Reusable Breast Pads Maternity
Porwke£7.994.2★
Elvie Pump Nursing Bra Extender & Strap Adjuster Clips 4 Pack
Elvie£10.904.5★
Lictin Milk Collection Shells 2PCS Milk Collector 60ML Milk Catcher Silicone Breast Milk Collector Milk Savers for Breastfeeding with 10 Breast Milk Storage Bags(Silicone Storage Box)
Lictin£10.624.4★
Qmibaby Breast Milk Collector (2 Pack) - High Capacity 60ML/2OZ Breast Shells Leak-Proof & BPA-Free Nursing Cup All-Day Comfort for Breastfeeding Collect Breastmilk
Qmibaby£8.923.8★
haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 2PCS
haakaa£18.964.5★
What buyers say about milk collection shells
What buyers praise and complain about, mined from review topics.What buyers love
“Little to no leakage”
“Very comfy”
“Easy to clean”
“Brilliant bit of kit”
“Helpfull 💃🏾for new mummy”
“Easy to use”
“It fits comfortably inside my bra”
“Very good value for money”
“Incredibly handy”
“Cute design”
What buyers complain about
“Not leak proof”
“Ok. Not the greatest shape for a Hakka”
“Doesnt really do much”
“Didnt fit in properly keeps hurting my nipple”
“Not comfortable”
“Poor quality”
“Bit tricky to put back together though and quite expensive”
“the stopper fell off making it unusable”
“I wish design was more simpler to wash though”
“hard to keep sterile or clean”
Top return reasons
Common questions
- Is milk collection shells profitable to sell on Amazon United Kingdom?
- The niche generates £33K/yr across 15 tracked products. 3 of 7 products launched in the last 360 days are still selling. 90-day search growth is -25.2%. Flapen's verdict: Skip it (43/100).
- How competitive is the milk collection shells niche?
- 9 brands and 14 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in milk collection shells?
- Top complaints mined from reviews: Leak-Proof, Shape/Style, Functionality-Overall. The return rate is 1.1%.
- When does demand for milk collection shells peak?
- Demand peaks in Aug–Sep; the busiest month runs 1.7× the quietest.
- What does it cost to enter the milk collection shells niche?
- Listings span £5.43–£25.29; the average listing price is £11.92 (sweet spot $15–$100). The average incumbent carries 2,169 reviews — the moat a new listing must climb.