---
title: "Mullein Leaf Capsules — $11K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/mullein-leaf-capsules"
last_updated: "2026-08-12T10:20:57.026Z"
locale: en
meta:
description: "Amazon product research for mullein leaf capsules: $11K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mullein leaf capsules: $11K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mullein Leaf Capsules — $11K/mo Amazon US Product Research"
---
# **Mullein Leaf Capsules**
**Skip it**
Soft demand (-19.8% this quarter) — this niche doesn't clear our bar today.
Market size 30Growth 15Conversion 91Competition 17Returns 100Price range 46Avg price 77Brand share 34Review moat 53Quality gap 27
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****10.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$15.78**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****1,381.1**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****$9.05–$20.10**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$134K**
$134K/yr · 78K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-19.8%**
90-day search growth — must beat 0% to launch
## **Is mullein leaf capsules profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mullein leaf capsules is a $134K/yr Amazon United States market (78K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 43/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mullein leaf capsules market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **8K–10K**
- avg 750–1,000/product
- **Revenue / yr**
- **$126K–$158K**
- units × avg price
- **Conversion rate**
- **10.9%**
- **Avg BSR**
- **#453**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **9.2%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **157 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **—flat
**Sellers**
**10**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**10%**
- Zazzee53% - NUTRAHARMONY14% - Nutricost7% - Carlyle6% - DEAL SUPPLEMENT6% - Nature's Answer5% - Open — no brand owns it (3 brands, 10%)
## **mullein leaf capsules demand & seasonality**
Weekly Amazon search volume, last 103 weeks — -19.8% search growth over the last 90 days.
3K2KPrime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/health-household/mullein-leaf-capsules/trend)
## **Top mullein leaf capsules search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mullein capsules**23K/yr-11.9%6.4% conv. - **mullein leaf capsules**14K/yr+7.8%8.8% conv. - **mullein capsules for lungs**10K/yr-12.3%8.8% conv. - **mullein pills**9K/yr-28.3%7.4% conv. - **mullein supplement**8K/yr-25.3%5.9% conv. - **mullein pills for lungs**5K/yr-24.8%7.0% conv. - **mullen capsule**6K/yr-27.6%6.5% conv. - **mullein capsules supplements**3K/yr-83.6%9.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/mullein-leaf-capsules/search-terms)
## **Top mullein leaf capsules products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$13K20%$27K30%$40K40%$54K1101001K10K 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**Zazzee Extra Strength Mullein Leaf 10:1 Extract 120 Vegan Capsules 4 Month Supply Verbascum Thapsus Respiratory & Lung Support Certified Kosher 100% Pure Leaf Powder Non-GMO Made in the USA**Zazzee**$19.99**4.6★4,383 rev](https://www.amazon.com/dp/B09DXCTNMX) [2**Mullein Lung Detox - Mullein Leaf 10:1 Extract - Marshmallow Root | Echinacea | Oregano | Quercetin | NAC - 15-in-1 Lung Support & Cleanse for Smokers Supplement - for Women & Men - 60 Vegan Capsules**NUTRAHARMONY**$20.05**4.5★3,143 rev](https://www.amazon.com/dp/B0D9YW6C1M) [3**Zazzee USDA Organic Mullein Leaf 10:1 Extract 120 Vegan Capsules 4 Month Supply Verbascum Thapsus Respiratory & Lung Support Organic Herbal Supplement All-Natural Non-GMO Made in the USA**Zazzee**$20.10**4.6★148 rev](https://www.amazon.com/dp/B0FQB9MLBC) [4**Nutricost Mullein Leaf Extract 120 Capsules for 60 Serving Per Bottle**Nutricost**$12.67**4.6★117 rev](https://www.amazon.com/dp/B0FDCB294P) [5**Carlyle Mullein Leaf Extract | 200 Capsules | Verbascum Thapsus**Carlyle**$17.01**4.6★2,137 rev](https://www.amazon.com/dp/B091FXD4C5)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Zazzee USDA Organic Mullein Leaf 10:1 Extract 120 Vegan Capsules 4 Month Supply Verbascum Thapsus Respiratory & Lung Support Organic Herbal Supplement All-Natural Non-GMO Made in the USA**Zazzee**$20.10**148 rev10mo ago](https://www.amazon.com/dp/B0FQB9MLBC) [**Nutricost Mullein Leaf Extract 120 Capsules for 60 Serving Per Bottle**Nutricost**$12.67**117 rev1y ago](https://www.amazon.com/dp/B0FDCB294P) [**FITO MEDICS Mullein | Mullein Leaf Capsules | 180 Capsules | Concentrated Extract | Highly Absorbable Herbal Supplement**FITO MEDIC'S**$9.05**7 rev1y ago](https://www.amazon.com/dp/B0FBS1XZXM) [**500mg Mullein Extract for Lung Support and Respiratory Health 30 Count**HAVASU NUTRITION**$10.67**593 rev2y ago](https://www.amazon.com/dp/B0D9WW8Z1M) [**Mullein Lung Detox - Mullein Leaf 10:1 Extract - Marshmallow Root | Echinacea | Oregano | Quercetin | NAC - 15-in-1 Lung Support & Cleanse for Smokers Supplement - for Women & Men - 60 Vegan Capsules**NUTRAHARMONY**$20.05**3,143 rev2y ago](https://www.amazon.com/dp/B0D9YW6C1M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**FITO MEDICS Mullein | Mullein Leaf Capsules | 180 Capsules | Concentrated Extract | Highly Absorbable Herbal Supplement**FITO MEDIC'S**$9.05**4.7★**▲ 372%**](https://www.amazon.com/dp/B0FBS1XZXM) [**Zazzee USDA Organic Mullein Leaf 10:1 Extract 120 Vegan Capsules 4 Month Supply Verbascum Thapsus Respiratory & Lung Support Organic Herbal Supplement All-Natural Non-GMO Made in the USA**Zazzee**$20.10**4.6★**▲ 98%**](https://www.amazon.com/dp/B0FQB9MLBC) [**Nutricost Mullein Leaf Extract 120 Capsules for 60 Serving Per Bottle**Nutricost**$12.67**4.6★**▲ 34%**](https://www.amazon.com/dp/B0FDCB294P) [**500mg Mullein Extract for Lung Support and Respiratory Health 30 Count**HAVASU NUTRITION**$10.67**4.5★**▲ 18%**](https://www.amazon.com/dp/B0D9WW8Z1M) [**Carlyle Mullein Leaf Extract | 200 Capsules | Verbascum Thapsus**Carlyle**$17.01**4.6★**— 9%**](https://www.amazon.com/dp/B091FXD4C5)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mullein leaf capsules**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Cough Relief**20%
*“Cough gone”*
**Quality-Overall**18%
*“Seem to be good quality supplements and work well”*
**Breathability**11%
*“Breathe better”*
**Efficiency**9%
*“Amazing Results”*
**Advertised Vs Actual Product**6%
*“as advertized”*
**Value For Money**5%
*“Good value”*
**Vitamin**3%
*“This is a pretty good supplement”*
**Side Effects**2%
*“I havent noticed any side effects was easy to use didnt affect my digestive track at all”*
**Natural Ingredients**2%
*“A natural aid that really works”*
**Dosage**1%
*“quality of capsule”*
### **What buyers complain about **
**Functionality-Overall**19%
*“No results”*
**Cough Relief**18%
*“Nothing worked on my constant cough untill i tried mullein”*
**Breathability**5%
*“Made Breathing Worse”*
**Taste-Overall**4%
*“It does have a slight green taste”*
**Side Effects**3%
*“Side affect”*
**Quality-Overall**3%
*“Quality issues”*
**Certifications**3%
*“there is none of USDA show anywhere on the product”*
**Smell**3%
*“they dont really have a smell either”*
**Allergies**2%
*“Had a bad allergic reaction”*
**Sinus Relief**2%
*“one of the added ingredients triggered my sinuses badly”*
### **Top return reasons **
**Functionality-Overall**75%
**Ingredients-Overall**25%
## **Common mullein leaf capsules questions**
- **Is mullein leaf capsules profitable to sell on Amazon United States?**
- The niche generates $134K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -19.8%. Flapen's verdict: Skip it (43/100).
- **How competitive is the mullein leaf capsules niche?**
- 9 brands and 10 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in mullein leaf capsules?**
- Top complaints mined from reviews: Functionality-Overall, Cough Relief, Breathability. The return rate is 0.0%.
- **When does demand for mullein leaf capsules peak?**
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- **What does it cost to enter the mullein leaf capsules niche?**
- Listings span $9.05–$20.10; the average listing price is $15.78 (sweet spot $15–$100). The average incumbent carries 1,381 reviews — the moat a new listing must climb.
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