---
title: "Mucinex — £139K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/mucinex"
last_updated: "2026-07-31T18:27:31.194Z"
locale: en
meta:
description: "Niche score 39/100 · £139K/yr market · 245K searches/yr · £7.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · £139K/yr market · 245K searches/yr · £7.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Mucinex — £139K/yr Amazon UK Niche (2026) - Flapen"
---
# **mucinex**
**Skip it**
Soft demand (-32.6% this quarter) — this niche doesn't clear our bar today.
Market size 31Growth 9Conversion 79Competition 21Returns 99Price range 16Avg price 20Brand share 27Review moat 49Quality gap 55
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,571.75**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£139K**
£139K/yr · 245K searches
**Brand share**
**Okay****89%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Avg price**
**Bad****£7.13**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£2.90–£17.23**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-32.6%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, mucinex is a £139K/yr Amazon United Kingdom market (245K searches/yr). The top 5 brands hold 89% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 39/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mucinex market data**
- **Units sold / yr**
- **15K–20K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£107K–£143K**
- units × avg price
- **Conversion rate**
- **7.9%**
- **Avg BSR**
- **#123**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **50%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▼falling
**Sellers**
**48**
**Top-5 brand share**
**89%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**7%**
- Benylin55% - Sudafed11% - Covonia9% - POTTER'S9% - Murlancra5% - ratiopharm5% - Open — no brand owns it (3 brands, 7%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -32.6% search growth over the last 90 days.
8K6KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/mucinex/trend)
## **Top mucinex search terms**
- **mucinex**50K/yr-18.0%3.6% conv. - **mucus and phlegm removal**38K/yr-29.1%8.3% conv. - **guaifenesin**25K/yr-35.7%8.5% conv. - **phlegm and mucus remover**24K/yr-17.4%6.3% conv. - **throat mucus remover**11K/yr-20.1%3.8% conv. - **mucus relief**17K/yr-37.5%8.1% conv. - **mucus cough medicine**13K/yr-30.0%15.7% conv. - **mucus remover**9K/yr-55.8%3.4% conv. - **guaifenesin mucus relief**8K/yr-40.7%9.7% conv. - **mucinex guaifenesin**5K/yr+4.3%6.8% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/mucinex/search-terms)
## **Top mucinex 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%£14K20%£28K30%£42K40%£55K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Benylin Mucus Cough Max Menthol Flavour Helps to Clear Chest Mucus from Day 1 Cough Medicine for Adults 100 mg/5 ml Oral Solution 150 ml**Benylin**£4.50**4.6★2,944 rev](https://www.amazon.co.uk/dp/B0046U82GY) [2**Sudafed Mucus Relief Triple Action Cold & Flu Tablets (Pack of 16) Helps Fight Cold and Flu and Unblocks the Nose Reduces Mucus Works in 15 Minutes**Sudafed**£3.50**4.5★3,826 rev](https://www.amazon.co.uk/dp/B006DCU66W) [3**Benylin Mucus Cough & Cold All in One Tablets 16 each**Benylin**£3.60**4.4★1,524 rev](https://www.amazon.co.uk/dp/B005QNES72) [4**Benylin Mucus Cough Max Honey and Lemon Flavour (1x 150ml) 100 mg/5 ml Cough Syrup Reduces Cough Intensity For Deep Penetrating Relief Cough Medicine for Adults**Benylin**£4.10**4.6★2,888 rev](https://www.amazon.co.uk/dp/B07JGB3PHS) [5**Potters Mucus Cough Pastilles 20 Pastilles**POTTER'S**£2.90**4.5★1,087 rev](https://www.amazon.co.uk/dp/B00O56Y7DG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Lung Exerciser and Mucus Clearing Device Breathing Mucus Clearing Relief Remover (Green)**Murlancra**£10.15**165 rev10mo ago](https://www.amazon.co.uk/dp/B0FRG1449D) [**Mullein Leaf Extract Capsules 10000mg Equivalent Per Serving| Vegan Lung Cleanse & Respiratory Support | Clears Mucus & Congestion | Soothes Throat | Lung Health & Detox for Smokers | 60 Capsules**Nutri-things**£8.82**59 rev11mo ago](https://www.amazon.co.uk/dp/B0FP3RT61Y) [**MillSTEPS Breathing Exercise Device for Lungs Lung Expansion & Mu-cus Relief Device (Blue)**MILL .STEPS**£10.71**269 rev3y ago](https://www.amazon.co.uk/dp/B0D7M8ZP7F) [**Sudafed Mucus Relief Triple Action Cold & Flu Tablets (Pack of 16) Helps Fight Cold and Flu and Unblocks the Nose Reduces Mucus Works in 15 Minutes**Sudafed**£3.50**3,826 rev5y ago](https://www.amazon.co.uk/dp/B006DCU66W) [**Benylin Mucus Cough & Cold All in One Tablets 16 each**Benylin**£3.60**1,524 rev5y ago](https://www.amazon.co.uk/dp/B005QNES72)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ambroxol ratiopharm 30 mg Cough Remover Tablets Pack of 20**ratiopharm**£9.96**4.5★**▲ 192%**](https://www.amazon.co.uk/dp/B007FASI3Y) [**Lung Exerciser and Mucus Clearing Device Breathing Mucus Clearing Relief Remover (Green)**Murlancra**£10.15**4.1★**▲ 59%**](https://www.amazon.co.uk/dp/B0FRG1449D) [**Mullein Leaf Extract Capsules 10000mg Equivalent Per Serving| Vegan Lung Cleanse & Respiratory Support | Clears Mucus & Congestion | Soothes Throat | Lung Health & Detox for Smokers | 60 Capsules**Nutri-things**£8.82**4.3★**▲ 50%**](https://www.amazon.co.uk/dp/B0FP3RT61Y) [**Potters Mucus Cough Pastilles 20 Pastilles**POTTER'S**£2.90**4.5★**▲ 10%**](https://www.amazon.co.uk/dp/B00O56Y7DG) [**Benylin Mucus Cough Max Menthol Flavour Helps to Clear Chest Mucus from Day 1 Cough Medicine for Adults 100 mg/5 ml Oral Solution 150 ml**Benylin**£4.50**4.6★**— 5%**](https://www.amazon.co.uk/dp/B0046U82GY)
**~~View all trending →~~**
## **What buyers say about mucinex**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Cough Relief**28%
*“Eases a cough well”*
**Value For Money**9%
*“the benefits are great”*
**Quality-Overall**8%
*“Great device”*
**Efficiency**7%
*“Effective”*
**Advertised Vs Actual Product**5%
*“Did the job”*
**Ease Of Use**5%
*“Easy to use”*
**Breathability**5%
*“I am able to breathe so much better”*
**Sinus Relief**4%
*“cleared my blocked nose”*
**Strength**3%
*“Effective”*
**Taste-Overall**3%
*“Strong alcoholic taste”*
### **What buyers complain about **
**Cough Relief**19%
*“my cough still lingered”*
**Taste-Overall**17%
*“The tablet does have an unpleasant taste”*
**Functionality-Overall**9%
*“it just does nothing”*
**Strength**6%
*“Not very good quite flimsy”*
**Breathability**4%
*“I was a bit wary about buying this breathing aid”*
**Dosage**4%
*“Just had first dose and became unbearably itchy, within minutes Ive a huge full body rash and hives, even on my face”*
**Value For Money**4%
*“Equivalent products much cheaper”*
**Durability**3%
*“Second one I have had as I accidentally broke the last one”*
**Language Issues**2%
*“Not very happy with this product came with no English instructions in haw many to take a day nothing in English about the side effects very poor”*
**Artificial Sweeteners**2%
*“I have just purchased this product before I bought it I asked if it contained any artificial sweeteners I was told no it contains sucrose Ive just read the list of ingredients”*
### **Top return reasons **
**Functionality-Overall**53%
**Advertised Vs Actual Product**14%
**Quality-Overall**5%
**Product Condition**4%
**Instructions/User Manual/Troubleshooting**3%
**Cough Relief**3%
**Sensitivity-Overall**2%
**Certifications**2%
**Unsustainable Design**2%
**Age Suitability**2%
## **Common questions**
- **Is mucinex profitable to sell on Amazon United Kingdom?**
- The niche generates £139K/yr across 12 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -32.6%. Flapen's verdict: Skip it (39/100).
- **How competitive is the mucinex niche?**
- 9 brands and 48 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 89% of demand.
- **What do buyers complain about in mucinex?**
- Top complaints mined from reviews: Cough Relief, Taste-Overall, Functionality-Overall. The return rate is 0.1%.
- **When does demand for mucinex peak?**
- Demand peaks in Jan–Feb; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the mucinex niche?**
- Listings span £2.90–£17.23; the average listing price is £7.13 (sweet spot $15–$100). The average incumbent carries 1,572 reviews — the moat a new listing must climb.
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