Valve
a concentrated shelf (top 5 take 85% of clicks) — Valve doesn't clear our bar today.
Flapen Score
Ranks 1,670 of 2,472 Baby Products niches · −5 vs the category median of 44
Is Valve profitable on Amazon?
According to Flapen's Amazon United States niche tracking, Valve is a $168K/yr Amazon United States market (213K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Jan–Jun. Verdict: Skip it — 39/100.
Valve: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -24.9% over the last 90 days and 4.4% of searches end in a purchase.
$168K
revenue / yr
Who owns the niche?
The top 5 brands hold 95% of demand, so 5% of the market is open.
5%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 10 products
Top Valve products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Legendairy Milk Duckbill Valves with Pull Tab - Compatible with Spectra S1 S2 9 Plus Medela Motif Baby Buddha & Zomee - Duckbill Valve Replacement Pump Parts BPA Free Silicone 6 Pack
- Price
- $11.76
- Rating
- 4.4/5
- Reviews
- 1,673
- Age
- 5y ago
Legendairy Milk Pumping Spray 4 oz. Helps Sore Nipples & Clogged Ducts Organic Lubricant for Breast Shields and Flanges Vegan Breast Pump Spray Natural & Lanolin-Free Made in USA
- Price
- $24.77
- Rating
- 4.5/5
- Reviews
- 1,557
- Age
- 3y ago
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms
- Price
- $10.05
- Rating
- 4.6/5
- Reviews
- 2,006
- Age
- 2y ago
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
- Price
- $41.19
- Rating
- 4.3/5
- Reviews
- 691
- Age
- 2y ago
Elvie Nipple Cushions 17mm | Soft-Silicone Nipple Cushions to Enhance fit for Improved Comfort and Efficiency (2 Pack)
- Price
- $20.20
- Rating
- 4.2/5
- Reviews
- 486
- Age
- 3y ago
Trending
90-day click momentumMomcozy 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
- Price
- $41.19
- Rating
- 4.3/5
- Reviews
- 691
- Age
- 2y ago
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms
- Price
- $10.05
- Rating
- 4.6/5
- Reviews
- 2,006
- Age
- 2y ago
Durceler 17mm Silicone Flange Inserts Compatible with Medela/for Spectra S1 S2 / Elvie / S18 S21 / Momcozy S9 S12/ TSRETE 24mm Breast Pump Shields or Freemie 25mm; Reduce Nipple Tunnel Down to 17mm
- Price
- $14.59
- Rating
- 4.2/5
- Reviews
- 160
- Age
- 4y ago
Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Essential for Moms
- Price
- $9.68
- Rating
- 4.6/5
- Reviews
- 4,179
- Age
- 2y ago
Legendairy Milk Liquid Gold Lactation Support | Lactation Supplement with Organic Goats Rue Milk Thistle Shatavari Fennel Alfalfa & Anise | Breastfeeding Supplements 1 Pack
- Price
- $21.18
- Rating
- 4.1/5
- Reviews
- 14,805
- Age
- 6y ago
Newest
by launch dateMomcozy 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
- Price
- $41.19
- Rating
- 4.3/5
- Reviews
- 691
- Age
- 2y ago
Nursi Luna Flange Sizing Kit 3-in-1 with 13/15/17/19/21mm for 24mm Electric Breast Pump Flanges/Shields 10PCS Soft Silicone Flange Inserts for More Comfortable Pumping BPA-Free Essential for Moms
- Price
- $9.87
- Rating
- 4.6/5
- Reviews
- 2,081
- Age
- 2y ago
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms
- Price
- $10.05
- Rating
- 4.6/5
- Reviews
- 2,006
- Age
- 2y ago
Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Essential for Moms
- Price
- $9.68
- Rating
- 4.6/5
- Reviews
- 4,179
- Age
- 2y ago
Legendairy Milk Pumping Spray 4 oz. Helps Sore Nipples & Clogged Ducts Organic Lubricant for Breast Shields and Flanges Vegan Breast Pump Spray Natural & Lanolin-Free Made in USA
- Price
- $24.77
- Rating
- 4.5/5
- Reviews
- 1,557
- Age
- 3y ago
Competition: brands, sellers & click share
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
Brands
7 rising
Sellers
13
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
85%
Top 20: 100%
Open market
3%
- Legendairy Milk65%
- Nursi Luna11%
- Momcozy8%
- Elvie7%
- Nuliie4%
- Mompmuir3%
- Open — no brand owns it (1 brand, 3%)
Valve demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan, Jun · busiest ÷ quietest = 2.0×
Top Valve search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- legendary milk flange inserts66K/yr
- legendairy milk inserts35K/yr
- legendairy flange inserts31K/yr
- legendairy milk flanges13K/yr
- legendairy milk flange insert25K/yr
- legendairy milk duckbill valves10K/yr
- legendary flange inserts9K/yr
- legendairy milk flange inserts5K/yr
- legendary milk duckbill valves6K/yr
- legendary milk inserts5K/yr
What reviews say buyers love and hate about Valve
What buyers mention most, as a share of all reviews.
What buyers love
77% of reviews“The best sizing kit”
“Good quality”
“Easy to take”
“Lactation support”
“So comfortable”
What buyers complain about
62% of reviews“Didn't work”
“Not worth it”
“These are huge”
“They all leak”
“Poor Quality”
Valve return rate & reasons
Why buyers send it back, as a share of all return requests.
2.2%
Return rate
59%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Valve questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
