Is lacteck flange silicone profitable to sell on Amazon United States?

The niche generates $115K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.8%. Flapen's verdict: Skip it (36/100).

How competitive is the lacteck flange silicone niche?

6 brands and 11 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in lacteck flange silicone?

Top complaints mined from reviews: Leak-Proof, Value For Money, Size-Overall. The return rate is 2.4%.

When does demand for lacteck flange silicone peak?

Demand peaks in May; the busiest month runs 1.7× the quietest.

What does it cost to enter the lacteck flange silicone niche?

Listings span $10.05–$41.19; the average listing price is $21.37 (sweet spot $15–$100). The average incumbent carries 1,179 reviews — the moat a new listing must climb.

lacteck flange silicone

Skip it

A concentrated shelf (top 5 take 93% of clicks) — this niche doesn't clear our bar today.

Avg price

Great$21.37

avg listing price — sweet spot $15–$100

Price range

Great$10.05–$41.19

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Returns

Good2.4%

return rate — above 5% kills the launch gate

Review moat

Good1,179.29

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$115K

$115K/yr · 449K searches

Growth

Bad-16.8%

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

Conversion

Bad1.2%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Competition

Bad93%

top-5 click share — a locked-up shelf

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, lacteck flange silicone is a $115K/yr Amazon United States market (449K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in May. Verdict: Skip it — 36/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

lacteck flange silicone market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $85K–$107K; units × avg price
Conversion rate: 1.2%
Avg BSR: #105
Page quality: 0%
Prime: 86%
Sponsored: 86%
Out of stock: 5.1%
Avg brand age: 42 months
Avg seller age: 122 days

Competition & brand share

The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

93%

Top 20: 100%

Open market

Pumpin' Pal55%
Legendairy Milk28%
Nursi Luna5%
Maymom5%
Momcozy4%
Elvie4%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.8% search growth over the last 90 days.

Peak months: May · busiest ÷ quietest = 1.7×

Open Trend

Top lacteck flange silicone search terms

pumpin pals flanges73K/yr +30.4%0.7% conv.
legendary milk flange inserts66K/yr -26.1%0.8% conv.
pumping pals flanges58K/yr -16.3%0.5% conv.
legendairy milk inserts35K/yr -10.4%0.4% conv.
pumpin pals52K/yr -43.4%0.8% conv.
legendairy flange inserts31K/yr -32.0%0.5% conv.
legendairy milk flanges13K/yr +22.0%0.8% conv.
pumping pals24K/yr -28.2%0.7% conv.
pumpin pal12K/yr +11.2%0.5% conv.
legendairy milk flange insert25K/yr -64.3%0.5% conv.

All search terms

Top lacteck flange silicone 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.

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

All 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Pumpin Pal X-Small Silicone Angled Breast Pump Flange Pair 2026 Design with Suction Sealing Rings Made in U.S.A.

Pumpin' Pal$24.283.0★2 rev

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

Legendairy Milk$11.764.4★1,673 rev

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

Legendairy Milk$24.774.5★1,557 rev

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

Nursi Luna$10.054.6★2,006 rev

Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield Pumpin Pal Shield Lansinoh Flange Maymom MyFit Shields MyFit Crater Shield

Maymom$17.364.7★1,840 rev

Newest

by launch date

Pumpin Pal X-Small Silicone Angled Breast Pump Flange Pair 2026 Design with Suction Sealing Rings Made in U.S.A.

Pumpin' Pal$24.282 rev

3mo 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

Momcozy$41.19691 rev

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

Nursi Luna$10.052,006 rev

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

Legendairy Milk$24.771,557 rev

3y ago

Elvie Nipple Cushions 17mm | Soft-Silicone Nipple Cushions to Enhance fit for Improved Comfort and Efficiency (2 Pack)

Elvie$20.20486 rev

3y ago

What buyers say about lacteck flange silicone

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

What buyers love

Quality-Overall18%

“Perfect side and same quality with my breast pump”

Ease Of Use14%

“Its easy to put on”

Size-Overall13%

“good variety of sizes”

Ease Of Cleaning8%

“Easy to clean”

Value For Money6%

“Worth it”

Color6%

“Love the color”

Comfort-Overall6%

“very comfortable”

Durability4%

“they are pretty durable”

Breastfeeding Friendly4%

“Amazing product for breastfeeding moms”

Advertised Vs Actual Product3%

“Gets the job done”

What buyers complain about

Leak-Proof20%

“They all leak”

Value For Money12%

“Expensive”

Size-Overall11%

“They are too big”

Comfort-Overall4%

“Very uncomfortable”

Smell4%

“Smells like straight cigarettes disgusting”

Durability4%

“when I was drying them after a clean they bent easily”

Quality-Overall4%

“Poor Quality”

Product Condition3%

“The packaging appeared brand new”

Ease Of Cleaning3%

“Why did these come dirty”

Functionality-Overall2%

“Did not work at all for me - terrible product”

Top return reasons

Size-Overall37%

Leak-Proof14%

Functionality-Overall9%

Defective Material/Parts5%

Motor Power4%

Advertised Vs Actual Product4%

Comfort-Overall3%

Value For Money3%

Compatibility-Overall2%

Width2%

Common questions

Is lacteck flange silicone profitable to sell on Amazon United States?: The niche generates $115K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.8%. Flapen's verdict: Skip it (36/100).
How competitive is the lacteck flange silicone niche?: 6 brands and 11 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in lacteck flange silicone?: Top complaints mined from reviews: Leak-Proof, Value For Money, Size-Overall. The return rate is 2.4%.
When does demand for lacteck flange silicone peak?: Demand peaks in May; the busiest month runs 1.7× the quietest.
What does it cost to enter the lacteck flange silicone niche?: Listings span $10.05–$41.19; the average listing price is $21.37 (sweet spot $15–$100). The average incumbent carries 1,179 reviews — the moat a new listing must climb.