breast milk storage bag
Skip itPrices mostly outside the sweet spot ($3.68–$13.97) — this niche doesn't clear our bar today.
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Conversion
Incredible14.0%search→purchase rate — share of searches ending in a sale
Market size
Good£583K£583K/yr · 536K searches
Review moat
Okay3,182.18avg incumbent reviews — the moat a new listing must climb
Brand share
Bad90%top-5 brand share — brand-locked demand
Growth
Bad-5.1%90-day search growth — must beat 0% to launch
Avg price
Bad£7.76avg listing price — sweet spot $15–$100
Competition
Bad80%top-5 click share — a locked-up shelf
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Price range
Bad£3.68–£13.97cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, breast milk storage bag is a £583K/yr Amazon United Kingdom market (536K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 42/100.
Data updated Jul 18, 2026 · scored weekly · How we score niches
breast milk storage bag market data
- Units sold / yr
- 60K–80K
- avg 5,000–6,000/product
- Revenue / yr
- £466K–£621K
- units × avg price
- Conversion rate
- 14.0%
- Avg BSR
- #6
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 5.5%
- Avg brand age
- 39 months
- Avg seller age
- 169 days
Competition & brand share
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 falling
Sellers
24
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
80%
Top 20: 100%
Open market
6%
- Lansinoh26%
- Medela24%
- COZYPEPE18%
- Nuliie15%
- Oderra8%
- Tommee Tippee3%
- Open — no brand owns it (2 brands, 6%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -5.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top breast milk storage bag search terms
- breast milk storage bag306K/yr
- milk storage bags73K/yr
- breastmilk storage bag42K/yr
- breast milk bags30K/yr
- milk bags breastfeeding21K/yr
- breast milk storage bags13K/yr
- milk bags14K/yr
- breastmilk storage bags7K/yr
- breastmilk bags6K/yr
- breast milk freezer bags7K/yr
Top breast milk storage bag 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 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Medela Easy Pour Disposable Breastmilk Storage Bags 210 ml Capacity Leakproof Design with Milk Protection Made Without BPA Pack of 50
Medela£6.724.8★1,213 rev
Lansinoh Breast Milk Storage Bags - Pre-Sterilised Leakproof & BPA/BPS-Free - Fridge & Freezer Breastmilk Pouches - Pump into bag with Lansinoh Breast Pumps - Breastfeeding Essentials - 50 Pack
Lansinoh£6.654.7★7,423 rev
Nuliie 120 Pcs Breast Milk Storage Bags 250ml BPA Free Milk Storage Bags with Pour Spout for Breastfeeding Self-Standing or Flat Pre-sterilised Bag Space Saving for Fridge or Freezer Use
Nuliie£8.414.6★13,108 rev
100 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer
COZYPEPE£7.634.7★1,366 rev
Oderra 250ml Breast Milk Storage Bags 50PCS- Pre-Sterilized Freezer-Safe Breastmilk Bags with Built-In Pour Spout Double Zip Seal Hospital Bag Maternity Essentials
Oderra£5.624.7★647 rev
Newest
by launch dateOderra 250ml Breast Milk Storage Bags 50PCS- Pre-Sterilized Freezer-Safe Breastmilk Bags with Built-In Pour Spout Double Zip Seal Hospital Bag Maternity Essentials
Oderra£5.62647 rev
100 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer
COZYPEPE£7.631,366 rev
200 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer
COZYPEPE£13.971,381 rev
Medela Easy Pour Disposable Breastmilk Storage Bags 210 ml Capacity Leakproof Design with Milk Protection Made Without BPA Pack of 50
Medela£6.721,213 rev
Medela Easy Pour Disposable Breastmilk Storage Bags 210 ml Capacity Leakproof Design with Milk Protection Made Without BPA Pack of 100
Medela£10.251,698 rev
Trending
90-day click momentumOderra 250ml Breast Milk Storage Bags 50PCS- Pre-Sterilized Freezer-Safe Breastmilk Bags with Built-In Pour Spout Double Zip Seal Hospital Bag Maternity Essentials
Oderra£5.624.7★
Lansinoh Breast Milk Storage Bags - Pre-Sterilised Leakproof & BPA/BPS-Free - Fridge & Freezer Breastmilk Pouches - Pump into bag with Lansinoh Breast Pumps - Breastfeeding Essentials - 50 Pack
Lansinoh£6.654.7★
Lansinoh Breast Milk Storage Bags - Pre-Sterilised Leakproof & BPA/BPS-Free - Fridge & Freezer Breastmilk Pouches - Pump into bag with Lansinoh Breast Pumps - Breastfeeding Essentials - 25 Pack
Lansinoh£3.684.7★
200 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer
COZYPEPE£13.974.7★
100 Pcs Breastmilk Storage Bags 8oz/250ml Breast Milk Storing Bag with Pour Spout Temperature-Sensing Color Change Milk Bag for Convenient Breastfeeding No Leak Presterilized for Freezer
COZYPEPE£7.634.7★
What buyers say about breast milk storage bag
What buyers praise and complain about, mined from review topics.What buyers love
“higher quality than I expected”
“Easy to use”
“Good storage”
“Leak proof”
“Good for the price”
“Very durable material”
“Will do the job”
“Sturdy material”
“good size”
“Great for breastfeeding mums”
What buyers complain about
“incorrect measure lines”
“Dont buy they leak”
“Dont open easily”
“No temperature sensor”
“Ive had better quality ones before from other brands these feel flimsy”
“the plastic feels much thicker”
“Poor design causes milk to spill and waste”
“as the bags are flat”
“This really wasted so much of the milk”
“the nails were too flimsy for me”
Top return reasons
Common questions
- Is breast milk storage bag profitable to sell on Amazon United Kingdom?
- The niche generates £583K/yr across 11 tracked products. 90-day search growth is -5.1%. Flapen's verdict: Skip it (42/100).
- How competitive is the breast milk storage bag niche?
- 8 brands and 24 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in breast milk storage bag?
- Top complaints mined from reviews: Measurement/Reading Accuracy, Leak-Proof, Ease Of Use. The return rate is 0.5%.
- When does demand for breast milk storage bag peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the breast milk storage bag niche?
- Listings span £3.68–£13.97; the average listing price is £7.76 (sweet spot $15–$100). The average incumbent carries 3,182 reviews — the moat a new listing must climb.