---
title: "Karvol — £35K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/karvol"
last_updated: "2026-07-31T13:05:32.710Z"
locale: en
meta:
description: "Niche score 32/100 · £35K/yr market · 39K searches/yr · £6.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 32/100 · £35K/yr market · 39K searches/yr · £6.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Karvol — £35K/yr Amazon UK Niche (2026) - Flapen"
---
# **karvol**
**Skip it**
Soft demand (-62.0% this quarter) — this niche doesn't clear our bar today.
Market size 9Growth 0Conversion 96Competition 4Returns 99Price range 0Avg price 18Brand share 0Review moat 63Quality gap 62
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****988.17**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****£6.49**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****£35K**
£35K/yr · 39K searches
**Competition**
**Bad****95%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-62.0%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****£3.74–£9.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, karvol is a £35K/yr Amazon United Kingdom market (39K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Sep–Oct–Nov–Dec. Verdict: Skip it — 32/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **karvol market data**
- **Units sold / yr**
- **5K–6K**
- avg 750–1,000/product
- **Revenue / yr**
- **£32K–£39K**
- units × avg price
- **Conversion rate**
- **13.9%**
- **Avg BSR**
- **#34**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **67%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **74 months**
- **Avg seller age**
- **190 days**
## **Competition & brand share**
The top 5 products capture 95% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▼falling
**Sellers**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**95%**
Top 20: 100%
**Open market**
**0%**
- KLEARVOL75% - CloudBazaar 24725%
## **Demand & seasonality**
Weekly Amazon search volume, last 83 weeks — -62.0% search growth over the last 90 days.
1K750Spike '25 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Feb, Sep, Oct, Nov, Dec · busiest ÷ quietest = 5.6×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/karvol/trend)
## **Top karvol search terms**
- **karvol**16K/yr-58.8%7.2% conv. - **karvol capsules uk**10K/yr-60.7%11.1% conv. - **klearvol capsules**4K/yr-65.3%30.0% conv. - **klearvol**5K/yr-55.0%18.0% conv. - **karvol capsules**4K/yr-77.8%9.8% conv. - **karvol capsule**1K/yr-73.6%10.5% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/karvol/search-terms)
## **Top karvol 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%15%£5K30%£11K45%£16K60%£21K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Klearvol Essential Oils Inhalation Capsules 10 Capsules (Pack of 1) Natural Vapour Blend for Clear Breathing and Comfort Eucalyptus Pine & Menthol Oils - Suitable for Children of 3+ Months**KLEARVOL**£3.74**4.6★2,565 rev](https://www.amazon.co.uk/dp/B01N98CD21) [2**Klearvol Essential Oils Inhalation Capsules Natural Vapour Blend for Clear Breathing and Congestion Relief Eucalyptus Pine & Menthol Oils - for Children of 3+ Months (20 Capsules)**KLEARVOL**£7.29**4.6★2,565 rev](https://www.amazon.co.uk/dp/B0B1MYPYXJ) [3**Karvol Plus - 20 Decongestant Vaporisation Capsules - Steam Inhalation for Nasal Decongestion Blocked Nose Cold Cough Natural Aromatic Oils (Reduced Packaging)**CloudBazaar 247**£5.77**4.0★40 rev](https://www.amazon.co.uk/dp/B0DNKMX386) [4**Karvol Plus - 40 Decongestant Vaporisation Capsules - Steam Inhalation for Nasal Decongestion Blocked Nose Cold Cough Natural Aromatic Oils (Reduced Packaging)**CloudBazaar 247**£9.87**4.5★79 rev](https://www.amazon.co.uk/dp/B0BSXS3K89) [5**Klearvol Sleep Tight Pillow Spray 50 ml (Pack of 1) Natural Essential Oil Blend with Lavender Pine and Thyme for Calming Bedtime Routines for Children of 3+ Months**KLEARVOL**£5.02**4.3★340 rev](https://www.amazon.co.uk/dp/B09Y95DNVD)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Karvol Plus - 20 Decongestant Vaporisation Capsules - Steam Inhalation for Nasal Decongestion Blocked Nose Cold Cough Natural Aromatic Oils (Reduced Packaging)**CloudBazaar 247**£5.77**40 rev3y ago](https://www.amazon.co.uk/dp/B0DNKMX386) [**Karvol Plus - 40 Decongestant Vaporisation Capsules - Steam Inhalation for Nasal Decongestion Blocked Nose Cold Cough Natural Aromatic Oils (Reduced Packaging)**CloudBazaar 247**£9.87**79 rev3y ago](https://www.amazon.co.uk/dp/B0BSXS3K89) [**Klearvol Essential Oils Inhalation Capsules Natural Vapour Blend for Clear Breathing and Congestion Relief Eucalyptus Pine & Menthol Oils - for Children of 3+ Months (20 Capsules)**KLEARVOL**£7.29**2,565 rev4y ago](https://www.amazon.co.uk/dp/B0B1MYPYXJ) [**Klearvol Sleep Tight Pillow Spray 50 ml (Pack of 1) Natural Essential Oil Blend with Lavender Pine and Thyme for Calming Bedtime Routines for Children of 3+ Months**KLEARVOL**£5.02**340 rev4y ago](https://www.amazon.co.uk/dp/B09Y95DNVD) [**Klearvol Sleep Tight Pillow Spray 100 ml (Pack of 1) Lavender Pine & Thyme Natural Vapours for Sweet Dreams - Suitable for 3+ Month Year Olds**KLEARVOL**£7.27**340 rev4y ago](https://www.amazon.co.uk/dp/B09WW19GL2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Klearvol Sleep Tight Pillow Spray 100 ml (Pack of 1) Lavender Pine & Thyme Natural Vapours for Sweet Dreams - Suitable for 3+ Month Year Olds**KLEARVOL**£7.27**4.3★**▲ 95%**](https://www.amazon.co.uk/dp/B09WW19GL2) [**Klearvol Essential Oils Inhalation Capsules Natural Vapour Blend for Clear Breathing and Congestion Relief Eucalyptus Pine & Menthol Oils - for Children of 3+ Months (20 Capsules)**KLEARVOL**£7.29**4.6★**▲ 31%**](https://www.amazon.co.uk/dp/B0B1MYPYXJ) [**Klearvol Sleep Tight Pillow Spray 50 ml (Pack of 1) Natural Essential Oil Blend with Lavender Pine and Thyme for Calming Bedtime Routines for Children of 3+ Months**KLEARVOL**£5.02**4.3★**▲ 14%**](https://www.amazon.co.uk/dp/B09Y95DNVD) [**Klearvol Essential Oils Inhalation Capsules 10 Capsules (Pack of 1) Natural Vapour Blend for Clear Breathing and Comfort Eucalyptus Pine & Menthol Oils - Suitable for Children of 3+ Months**KLEARVOL**£3.74**4.6★**— 4%**](https://www.amazon.co.uk/dp/B01N98CD21) [**Karvol Plus - 40 Decongestant Vaporisation Capsules - Steam Inhalation for Nasal Decongestion Blocked Nose Cold Cough Natural Aromatic Oils (Reduced Packaging)**CloudBazaar 247**£9.87**4.5★**▼ 13%**](https://www.amazon.co.uk/dp/B0BSXS3K89)
**~~View all trending →~~**
## **What buyers say about karvol**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Breathability**26%
*“The inhalation capsules are easy to use and really help, especially when needed for comfort and easier breathing”*
**Smell**23%
*“Smells really good too”*
**Value For Money**21%
*“Great value for money”*
**Advertised Vs Actual Product**7%
*“As per description”*
**Quality-Overall**7%
*“Good quality product”*
**Sinus Relief**5%
*“Works really well – a must have for blocked noses”*
**Cold Relief**4%
*“Seems to help my kids when full of cold”*
**Cough Relief**4%
*“Great for stuffy nose”*
**Ease Of Use**4%
*“easy to use oncenopen”*
### **What buyers complain about **
**Strength**29%
*“not quite as strong as they used to be”*
**Smell**26%
*“Smells great didnt help baby sleep”*
**Functionality-Overall**14%
*“Didnt work at all”*
**Allergies**14%
*“AWFUL AWFUL AWFUL”*
**Instructions/User Manual/Troubleshooting**7%
*“Sent in a plain box with NO instructions”*
**Adhesion/Stickiness**5%
*“bottle was wet ans sticky”*
**Sleep Quality**5%
*“Smells great didnt help baby sleep”*
### **Top return reasons **
**Smell**34%
**Age Suitability**25%
**Functionality-Overall**19%
**Size-Overall**6%
**Strength**6%
**Advertised Vs Actual Product**6%
**Breathability**3%
## **Common questions**
- **Is karvol profitable to sell on Amazon United Kingdom?**
- The niche generates £35K/yr across 6 tracked products. 90-day search growth is -62.0%. Flapen's verdict: Skip it (32/100).
- **How competitive is the karvol niche?**
- 2 brands and 6 sellers compete. The top 5 products take 95% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in karvol?**
- Top complaints mined from reviews: Strength, Smell, Functionality-Overall. The return rate is 0.2%.
- **When does demand for karvol peak?**
- Demand peaks in Jan–Feb–Sep–Oct–Nov–Dec; the busiest month runs 5.6× the quietest.
- **What does it cost to enter the karvol niche?**
- Listings span £3.74–£9.87; the average listing price is £6.49 (sweet spot $15–$100). The average incumbent carries 988 reviews — the moat a new listing must climb.
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