Skip to content

Breastmilk Storage Bag

Breastmilk Storage Bag shows a $3.8M/yr market, but a deep review moat (22,372 avg reviews) keeps it on the watch list.

Flapen Score

51
Worth a look

Top 21% of 2,472 Baby Products niches · +7 vs the category median of 44

Market size 97Growth 21Conversion 80Competition 36Returns 73Price range 76Avg price 78Brand share 21Review moat 15Quality gap 18
This niche Category average · 2,472 niches

Is Breastmilk Storage Bag profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Breastmilk Storage Bag is a $3.8M/yr Amazon United States market (2.9M searches/yr). The top 5 brands hold 92% of demand. Verdict: Worth a look — 51/100.

Breastmilk Storage Bag: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -7.1% over the last 90 days and 8.3% of searches end in a purchase.

$3.8M

revenue / yr

Units sold / yr300K
Search volume / yr-7.1%2.9M
Conversion rate8.3%
Avg price$16.10

Who owns the niche?

The top 5 brands hold 92% of demand, so 8% of the market is open.

8%

open market share

Brands · sellers9 · 70
Top-5 product click share63%
Open market8%
Avg brand age40 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.7★ — the gap to enter on.

0/100

page quality · 19 products

Sponsored placement74%
New entrants (1y)2· 2 succeeded
Avg rating4.7★
Avg reviews22,372

Top Breastmilk Storage Bag products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

$0$190K$380K$571K$761K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

9 rising

Sellers

70

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

5%

  • Lansinoh34%
  • Momcozy27%
  • Nuliie12%
  • Medela10%
  • Motif Medical9%
  • Mama Bear3%
  • Open — no brand owns it (3 brands, 5%)

Breastmilk Storage Bag demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume2.9MCVR8.3%Products19Brands9Top 5 Brands92%OOS Rate0.0%Rating4.7★Reviews22,372Avg BSR#31
80K60KPrime Day '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top Breastmilk Storage Bag search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • breast milk storage bags freezer1.0M/yr
  • milk storage bags310K/yr
  • breastmilk storage bag361K/yr
  • breast milk bags168K/yr
  • breast milk storage bags129K/yr
  • lansinoh milk storage bag142K/yr
  • milk bags for breastmilk126K/yr
  • breastmilk bags101K/yr
  • motif milk storage bags86K/yr
  • milk bags72K/yr

What reviews say buyers love and hate about Breastmilk Storage Bag

What buyers mention most, as a share of all reviews.

What buyers love

83% of reviews
Quality-Overall16%

Good quality, arrived exactly as described

Ease Of Use15%

Its easy to use when storing

Storage Capacity13%

The storage bag is very useful

Leak-Proof13%

Doesnt leak

Durability7%

Durable and reliable

What buyers complain about

69% of reviews
Leak-Proof30%

Leak Everywhere

Ease Of Use11%

Hard to use

Quality-Overall7%

Lower quality new model

Design-Overall4%

Intricate design

Thickness4%

The plastic is thick

Breastmilk Storage Bag return rate & reasons

Why buyers send it back, as a share of all return requests.

2.1%

Return rate

26%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Breastfeeding Friendly
18%
2Size-Overall
16%
3Value For Money
12%
4Leak-Proof
12%
5Storage Capacity
5%

Common Breastmilk Storage Bag questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Breastmilk Storage Bag 51/100 on Amazon United States — Worth a look. The niche generates $3.8M/yr across 19 tracked products. 2 of 2 products launched in the last 360 days are still selling. Search demand moved -7.1% over the last 90 days.
Search demand for Breastmilk Storage Bag on Amazon United States is steady year-round — the busiest month runs 1.3× the quietest.