---
title: "breast shells — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/baby-products/breast-shells"
last_updated: "2026-07-14T04:01:25.110Z"
locale: en
meta:
  description: "a small market ($63K/yr) — breast shells doesn't clear our bar today."
  "og:description": "a small market ($63K/yr) — breast shells doesn't clear our bar today."
  "og:title": "breast shells — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen"
---

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# **breast shells**

**Skip it**

A small market ($63K/yr) — this niche doesn't clear our bar today.

Market size 16Growth 19Conversion 71Competition 30Returns 43Price range 84Avg price 85Brand share 39Review moat 39Quality gap 75

**Avg price**

**Great****$19.12**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$8.01–$59.64**

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

**Quality gap**

**Great****4.3★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Good****6.6%**

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

**Returns**

**Okay****3.9%**

return rate — above 6% kills the launch gate

**Brand share**

**Okay****81%**

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

**Review moat**

**Okay****2,572.5**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Okay****67%**

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

**Growth**

**Bad****-11.2%**

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

**Market size**

**Bad****$63K**

$63K/yr · 50K searches

## **Competition**

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**12 **▼falling

**Sellers**

**33**

**Top-5 brand share**

**81%**

**Open market**

**13%**

- Medela31% - Momcozy20% - Silverette12% - YIYEE11% - Zdolmy8% - haakaa6% - Open — no brand owns it (6 brands, 13%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$6K20%$13K30%$19K40%$25K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Medela TheraShells Breast Shells Protect Sore Flat or Inverted Nipples While Pumping or Breastfeeding Natural Appearance and Exceptional Comfort Made Without BPA](https://m.media-amazon.com/images/I/41YZMCcYi2L.jpg)**Medela TheraShells Breast Shells Protect Sore Flat or Inverted Nipples While Pumping or Breastfeeding Natural Appearance and Exceptional Comfort Made Without BPA**Medela**$16.43**3.9★641 rev](https://www.amazon.com/dp/B0006Q561G) [2![Momcozy 999 Silver Nursing Cups Original Perforated Breathable Design 999 Silver Nipple Cover for Breastfeeding Essential Nipple Shield for Nursing Newborn Metal Nipple Shields Regular Size](https://m.media-amazon.com/images/I/410IrfxgswL.jpg)**Momcozy 999 Silver Nursing Cups Original Perforated Breathable Design 999 Silver Nipple Cover for Breastfeeding Essential Nipple Shield for Nursing Newborn Metal Nipple Shields Regular Size**Momcozy**$41.19**4.3★691 rev](https://www.amazon.com/dp/B0D66JT3LS) [3![Silverette The Original Silver Nursing Cups Nipple Covers for Breastfeeding Essentials model number: 7300 Pure 925 Silver Nipple Shields for Breastfeeding Lightweight Nursing Cups Regular Size](https://m.media-amazon.com/images/I/41JWzseHoTL.jpg)**Silverette The Original Silver Nursing Cups Nipple Covers for Breastfeeding Essentials model number: 7300 Pure 925 Silver Nipple Shields for Breastfeeding Lightweight Nursing Cups Regular Size**Silverette**$59.64**4.5★7,197 rev](https://www.amazon.com/dp/B00D4MWKNQ) [4![YIYEE Breast Shells Milk Saver for Breastfeeding 4 Pack BPA Free Breast Shield Nursing Cups Protect Sore Nipples Breast Milk Collection Shells](https://m.media-amazon.com/images/I/412mgx03tAL.jpg)**YIYEE Breast Shells Milk Saver for Breastfeeding 4 Pack BPA Free Breast Shield Nursing Cups Protect Sore Nipples Breast Milk Collection Shells**YIYEE**$10.18**4.3★1,070 rev](https://www.amazon.com/dp/B0859YHPGW) [5![Breast Shells Milk Saver Nursing Cups Nursing Moms to Ease Nipple Pain BPA-Free and Reusable Collect Breast Milk Leak (Pack of 2)](https://m.media-amazon.com/images/I/417ql6z8nOL.jpg)**Breast Shells Milk Saver Nursing Cups Nursing Moms to Ease Nipple Pain BPA-Free and Reusable Collect Breast Milk Leak (Pack of 2)**Zdolmy**$8.94**4.2★3,018 rev](https://www.amazon.com/dp/B078NY26GL)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Momcozy Breast Milk Collector Slim Discreet Waterdrop Silicone Breast Shells for Light Milk Leakage Collection with Storage Case (1oz/30ml 2PCS)](https://m.media-amazon.com/images/I/31RD1Ulks2L.jpg)**Momcozy Breast Milk Collector Slim Discreet Waterdrop Silicone Breast Shells for Light Milk Leakage Collection with Storage Case (1oz/30ml 2PCS)**Momcozy**$21.82**1,046 rev2mo ago](https://www.amazon.com/dp/B0GLGKDGYM) [![haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 2PCS](https://m.media-amazon.com/images/I/31UWzwSsXNL.jpg)**haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 2PCS**haakaa**$21.65**818 rev11mo ago](https://www.amazon.com/dp/B0FJXTZFPZ) [![haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 1PC](https://m.media-amazon.com/images/I/317P4+Ay+rL.jpg)**haakaa Petal Soft Silicone Milk CollectorDiscreet Leak-Protection Breast Milk Saver Reusable Breast Shells Milk Collection Cup for Breastfeeding with Cleaning Brush- 1PC**haakaa**$14.05**818 rev11mo ago](https://www.amazon.com/dp/B0FJXVJQK5) [![Breast Milk Collector Milk Collectors for Breastfeeding Reusable Breast Milk Shells Catcher Protect Sore Nipples for Breastfeeding Made from BPA-Free and Food-Safe Silicone(2.03oz 2 Counts)](https://m.media-amazon.com/images/I/41oFPGcs4fL.jpg)**Breast Milk Collector Milk Collectors for Breastfeeding Reusable Breast Milk Shells Catcher Protect Sore Nipples for Breastfeeding Made from BPA-Free and Food-Safe Silicone(2.03oz 2 Counts)**COMI**$12.30**137 rev12mo ago](https://www.amazon.com/dp/B0FHPWVZT4) [![Momcozy Breast Milk Collector Large Capacity for High Milk Supply Milk Collectors for Breastfeeding Reusable Soft Silicone Breast Shells (3oz/90ml 2PCS)](https://m.media-amazon.com/images/I/41YtbXxULuL.jpg)**Momcozy Breast Milk Collector Large Capacity for High Milk Supply Milk Collectors for Breastfeeding Reusable Soft Silicone Breast Shells (3oz/90ml 2PCS)**Momcozy**$22.33**1,046 rev1y ago](https://www.amazon.com/dp/B0D9JVL1HN)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Momcozy Breast Milk Collector Slim Discreet Waterdrop Silicone Breast Shells for Light Milk Leakage Collection with Storage Case (1oz/30ml 2PCS)](https://m.media-amazon.com/images/I/31RD1Ulks2L.jpg)**Momcozy Breast Milk Collector Slim Discreet Waterdrop Silicone Breast Shells for Light Milk Leakage Collection with Storage Case (1oz/30ml 2PCS)**Momcozy**$21.82**4.4★**▲ 199%**](https://www.amazon.com/dp/B0GLGKDGYM) [![Leg Avenue Shell Adhesive Jewel Nipple Stickers Clear O/S](https://m.media-amazon.com/images/I/41U6UAu2KFL.jpg)**Leg Avenue Shell Adhesive Jewel Nipple Stickers Clear O/S**Leg Avenue**$9.69**3.8★**▲ 196%**](https://www.amazon.com/dp/B0CWN9M63V) [![Momcozy 999 Silver Nursing Cups Original Perforated Breathable Design 999 Silver Nipple Cover for Breastfeeding Essential Nipple Shield for Nursing Newborn Metal Nipple Shields Regular Size](https://m.media-amazon.com/images/I/410IrfxgswL.jpg)**Momcozy 999 Silver Nursing Cups Original Perforated Breathable Design 999 Silver Nipple Cover for Breastfeeding Essential Nipple Shield for Nursing Newborn Metal Nipple Shields Regular Size**Momcozy**$41.19**4.3★**▲ 169%**](https://www.amazon.com/dp/B0D66JT3LS) [![Silverette The Original Silver Nursing Cups Nipple Covers for Breastfeeding Essentials model number: 7300 Pure 925 Silver Nipple Shields for Breastfeeding Lightweight Nursing Cups Regular Size](https://m.media-amazon.com/images/I/41JWzseHoTL.jpg)**Silverette The Original Silver Nursing Cups Nipple Covers for Breastfeeding Essentials model number: 7300 Pure 925 Silver Nipple Shields for Breastfeeding Lightweight Nursing Cups Regular Size**Silverette**$59.64**4.5★**▲ 84%**](https://www.amazon.com/dp/B00D4MWKNQ) [![Breast Milk Collector Milk Collectors for Breastfeeding Reusable Breast Milk Shells Catcher Protect Sore Nipples for Breastfeeding Made from BPA-Free and Food-Safe Silicone(2.03oz 2 Counts)](https://m.media-amazon.com/images/I/41oFPGcs4fL.jpg)**Breast Milk Collector Milk Collectors for Breastfeeding Reusable Breast Milk Shells Catcher Protect Sore Nipples for Breastfeeding Made from BPA-Free and Food-Safe Silicone(2.03oz 2 Counts)**COMI**$12.30**4.2★**▲ 69%**](https://www.amazon.com/dp/B0FHPWVZT4)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -11.2% search growth over the last 90 days.

2K2KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 2.0×

## **Reviews**

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

### **What buyers love **

**Quality-Overall**14%

*“Solid product, almost perfect”*

**Comfort-Overall**14%

*“So comfortable”*

**Breastfeeding Friendly**13%

*“A must for breastfeeding”*

**Value For Money**8%

*“Best investment”*

**Leak-Proof**7%

*“No leakage”*

**Ease Of Cleaning**6%

*“Easy to wash and keep clean”*

**Ease Of Use**6%

*“Easy to put on”*

**Size-Overall**5%

*“fit all sizes”*

**Advertised Vs Actual Product**3%

*“As advertised”*

**Soft Feel**2%

*“Silicone is very soft and comfortable”*

### **What buyers complain about **

**Leak-Proof**20%

*“leaks around the edges”*

**Value For Money**8%

*“Waste of money”*

**Comfort-Overall**6%

*“They are uncomfortable”*

**Adhesion/Stickiness**4%

*“The adhesive both works and doesnt work”*

**Size-Overall**4%

*“these are so big”*

**Ease Of Cleaning**4%

*“since it doesnt clean it very well”*

**Functionality-Overall**3%

*“Did not work for me”*

**Product Condition**3%

*“used”*

**Ease Of Use**2%

*“Just wasnt easy to use”*

**Smell**2%

*“cannot get rid of the chemical smell”*

### **Top return reasons **

**Size-Overall**44%

**Functionality-Overall**13%

**Comfort-Overall**5%

**Value For Money**5%

**Advertised Vs Actual Product**5%

**Defective Material/Parts**5%

**Breastfeeding Friendly**4%

**Leak-Proof**4%

**Product Condition**2%

**Quality-Overall**2%