---
title: "Zero Waste Cap — $264K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/zero-waste-cap"
last_updated: "2026-08-09T11:52:18.115Z"
locale: en
meta:
description: "Niche score 38/100 · $264K/yr market · 354K searches/yr · $16.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · $264K/yr market · 354K searches/yr · $16.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Zero Waste Cap — $264K/yr Amazon US Niche (2026) - Flapen"
---
# **zero waste cap**
**Skip it**
Soft demand (-56.3% this quarter) — this niche doesn't clear our bar today.
Market size 48Growth 0Conversion 55Competition 15Returns 74Price range 79Avg price 78Brand share 0Review moat 24Quality gap 70
**Price range**
**Great****$9.95–$34.71**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$16.26**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.0%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****4.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$264K**
$264K/yr · 354K searches
**Review moat**
**Bad****5,868.2**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-56.3%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, zero waste cap is a $264K/yr Amazon United States market (354K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb–Apr–Dec. Verdict: Skip it — 38/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **zero waste cap market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$244K–$325K**
- units × avg price
- **Conversion rate**
- **4.6%**
- **Avg BSR**
- **#120**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **90%**
- **Out of stock**
- **5.5%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**8**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**0%**
- Flip-It!69% - WhiteRhino17% - Luvan6% - G GAMERIEND4% - Generic4%
## **Demand & seasonality**
Weekly Amazon search volume, last 109 weeks — -56.3% search growth over the last 90 days.
20K15KPrime Day '24Spike '24Black Friday '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Apr, Dec · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/zero-waste-cap/trend)
## **Top zero waste cap search terms**
- **bottle emptying cap**69K/yr-38.4%4.7% conv. - **flip it bottle emptying kit**54K/yr-53.3%8.3% conv. - **bottle emptying kit**32K/yr-45.8%3.5% conv. - **bottle emptying caps**17K/yr-50.6%3.9% conv. - **flip it bottle emptying cap**23K/yr-51.1%6.4% conv. - **flip it**20K/yr-36.0%3.9% conv. - **upside down bottle holder**11K/yr-5.8%2.5% conv. - **bottle lids**10K/yr-4.3%0.2% conv. - **upside down bottle dispenser cap**13K/yr-60.6%5.6% conv. - **lotion bottle caps to get the last drop**10K/yr-41.3%7.0% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/zero-waste-cap/search-terms)
## **Top zero waste cap 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.
0%10%$26K20%$53K30%$79K40%$106K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Flip-It! Bottle Emptying Kit 6 Bottle Pack - No more wasted product - Fits most plastic bottles 6 Base Caps 6 Adapters Pastel Color Edition**Flip-It!**$19.74**4.5★18,377 rev](https://www.amazon.com/dp/B07Q5351BP) [2**Flip-It! 2-Pack Premium Bottle Emptying Kit No more wasted product - Fits most plastic bottles Get out every drop of Shampoos Lotions & More 2 Base Caps 6 Adapters Pastel Color Edition**Flip-It!**$15.86**4.5★18,377 rev](https://www.amazon.com/dp/B079C4B8V8) [3**WhiteRhino Bottle Emptying Cap with 3 Size Flip Bottle Emptying Kit|Upside Down Bottle Dispenser Cap|Squeeze Fit Most -for Pump Bottle Lotion Shampoo Body Wash Get Last Drop2cs**WhiteRhino**$11.75**4.4★109 rev](https://www.amazon.com/dp/B0GPWTW3B4) [4**Flip-It! Bottle Emptying Kit 6 Bottle Pack - No more wasted product - Fits most plastic bottles 6 Base Caps 6 Adapters Bright Color Edition**Flip-It!**$19.79**4.5★18,377 rev](https://www.amazon.com/dp/B00LNJKX7W) [5**Luvan 2-Pack Bottle Emptying Cap Flip Dispenser Kit for Every Drop Universal Inverted No-Waste Caps for Shampoo Lotion Soap Ketchup Mustard Sauces Space-Saver for Kitchen Bathroom**Luvan**$11.75**4.2★50 rev](https://www.amazon.com/dp/B0GPW2NYCM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**WhiteRhino Bottle Emptying Cap with 3 Size Flip Bottle Emptying Kit|Upside Down Bottle Dispenser Cap|Squeeze Fit Most -for Pump Bottle Lotion Shampoo Body Wash Get Last Drop2cs**WhiteRhino**$11.75**109 rev4mo ago](https://www.amazon.com/dp/B0GPWTW3B4) [**Luvan 2-Pack Bottle Emptying Cap Flip Dispenser Kit for Every Drop Universal Inverted No-Waste Caps for Shampoo Lotion Soap Ketchup Mustard Sauces Space-Saver for Kitchen Bathroom**Luvan**$11.75**50 rev4mo ago](https://www.amazon.com/dp/B0GPW2NYCM) [**WhiteRhino Bottle Emptying Cap Kit 2 Upside Down Bottle Stands with 4 Caps 2 x 24mm & 2 x 28mm Bottle Emptying Kit to Flip Bottles for Shampoo Lotion Body Wash and Condiments**WhiteRhino**$10.80**160 rev8mo ago](https://www.amazon.com/dp/B0FVXGCW6H) [**WhiteRhino Bottle Emptying Cap Kit 4 Pack Bottle Emptying Kit with Stands 2 x 24mm & 2 x 28mm Upside Down Flip Caps for Shampoo Lotion Conditioner Body Wash Honey and Condiments**WhiteRhino**$15.35**160 rev9mo ago](https://www.amazon.com/dp/B0FQJ6G5VN) [**Generic 10-Pack Bottle Emptying Cap Kit with 5 Sizes - Reusable Leak-Proof Flip Top Snap Top Dispenser Cap Fit Most Bottles - Easy Zero Waste Money Saver Perfect Home & Bathroom Accessories**Generic**$9.95**102 rev2y ago](https://www.amazon.com/dp/B0D462NK88)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**WhiteRhino Bottle Emptying Cap with 3 Size Flip Bottle Emptying Kit|Upside Down Bottle Dispenser Cap|Squeeze Fit Most -for Pump Bottle Lotion Shampoo Body Wash Get Last Drop2cs**WhiteRhino**$11.75**4.4★**▲ 256%**](https://www.amazon.com/dp/B0GPWTW3B4) [**Luvan 2-Pack Bottle Emptying Cap Flip Dispenser Kit for Every Drop Universal Inverted No-Waste Caps for Shampoo Lotion Soap Ketchup Mustard Sauces Space-Saver for Kitchen Bathroom**Luvan**$11.75**4.2★**▲ 158%**](https://www.amazon.com/dp/B0GPW2NYCM) [**WhiteRhino Bottle Emptying Cap Kit 4 Pack Bottle Emptying Kit with Stands 2 x 24mm & 2 x 28mm Upside Down Flip Caps for Shampoo Lotion Conditioner Body Wash Honey and Condiments**WhiteRhino**$15.35**4.1★**▲ 65%**](https://www.amazon.com/dp/B0FQJ6G5VN) [**Generic 10-Pack Bottle Emptying Cap Kit with 5 Sizes - Reusable Leak-Proof Flip Top Snap Top Dispenser Cap Fit Most Bottles - Easy Zero Waste Money Saver Perfect Home & Bathroom Accessories**Generic**$9.95**4.4★**▲ 59%**](https://www.amazon.com/dp/B0D462NK88) [**Flip-It! Bottle Emptying Kit 6 Bottle Pack - No more wasted product - Fits most plastic bottles 6 Base Caps 6 Adapters Bright Color Edition**Flip-It!**$19.79**4.5★**▲ 32%**](https://www.amazon.com/dp/B00LNJKX7W)
**~~View all trending →~~**
## **What buyers say about zero waste cap**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**16%
*“Very handy”*
**Advertised Vs Actual Product**12%
*“As Advertised”*
**Quality-Overall**11%
*“This is such clever product”*
**Efficiency**11%
*“well served its purpose”*
**Size-Overall**11%
*“Fit well”*
**Value For Money**8%
*“Great buy”*
**Leak-Proof**4%
*“do not leak”*
**Dispensing Mechanism**4%
*“Such an easy way to maximize usage of your various products that dispense with a pump”*
**Design-Overall**3%
*“Seriously the coolest modern invention”*
**Assembly/Installation**2%
*“Easy assembly”*
### **What buyers complain about **
**Size-Overall**31%
*“Doesnt fit”*
**Leak-Proof**10%
*“they leak”*
**Functionality-Overall**7%
*“These bottle-emptying caps DID NOT work at all”*
**Ease Of Use**7%
*“Difficult to use”*
**Value For Money**6%
*“not that great for the price”*
**Quality-Overall**4%
*“Piece of CRAP”*
**Natural Resource Wastage**3%
*“Waste of money”*
**Dispensing Mechanism**3%
*“can't get it dispensed with this kit on the bottle”*
**Compatibility-Overall**3%
*“an adapter that cannot be used on its own is out of control”*
**Ease Of Cleaning**2%
*“This is messy and time consuming,”*
### **Top return reasons **
**Size-Overall**54%
**Functionality-Overall**9%
**Advertised Vs Actual Product**7%
**Compatibility-Overall**6%
**Leak-Proof**5%
**Defective Material/Parts**5%
**Value For Money**3%
**Ease Of Use**2%
**Product Condition**2%
**Dispensing Mechanism**1%
## **Common questions**
- **Is zero waste cap profitable to sell on Amazon United States?**
- The niche generates $264K/yr across 10 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -56.3%. Flapen's verdict: Skip it (38/100).
- **How competitive is the zero waste cap niche?**
- 5 brands and 8 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in zero waste cap?**
- Top complaints mined from reviews: Size-Overall, Leak-Proof, Functionality-Overall. The return rate is 2.0%.
- **When does demand for zero waste cap peak?**
- Demand peaks in Feb–Apr–Dec; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the zero waste cap niche?**
- Listings span $9.95–$34.71; the average listing price is $16.26 (sweet spot $15–$100). The average incumbent carries 5,868 reviews — the moat a new listing must climb.
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