Mullein
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Market size
Incredible$5.0M$5.0M/yr · 2.4M searches
Conversion
Great10.2%search→purchase rate — share of searches ending in a sale
Avg price
Great$20.15avg listing price — sweet spot $15–$100
Price range
Great$8.22–$36.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good68%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Review moat
Okay3,076.75avg incumbent reviews — the moat a new listing must climb
Growth
Bad-21.5%90-day search growth — must beat 0% to launch
Is mullein profitable on Amazon?
According to Flapen's Amazon United States niche tracking, mullein is a $5.0M/yr Amazon United States market (2.4M searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Jan. Verdict: Worth a look — 63/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
mullein market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 250K–300K
- avg 12,500–15,000/product
- Revenue / yr
- $5.0M–$6.0M
- units × avg price
- Conversion rate
- 10.2%
- Avg BSR
- #295
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 48 months
- Avg seller age
- 155 days
Competition: brands, sellers & click share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
17 flat
Sellers
566
Top-5 brand share
68%
Top 20: 100%
Top-5 click share
59%
Top 20: 100%
Open market
25%
- NUTRAHARMONY35%
- Nature's Answer11%
- Betterbrand8%
- Fidus7%
- HERBIFY7%
- Zazzee6%
mullein demand & seasonality
Weekly Amazon search volume, last 104 weeks — -21.5% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 2.0×
Top mullein search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- mullein drops for lungs969K/yr
- mullein682K/yr
- mullein leaf extract for lungs236K/yr
- mullein drops137K/yr
- mullen68K/yr
- origin drops mullein12K/yr
- mullien39K/yr
- mullins detox lungs45K/yr
- nutrapure mullein drops10K/yr
- mullein tincture33K/yr
Top mullein 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.
All 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Mullein Drops for Lungs - USDA Organic Liquid - Mullein Leaf Extract Supplement - for Women & Men - Lung & Bronchial Cleanse for Smokers - Respiratory Health Support - As Tincture Tea Pills - 4 oz
NUTRAHARMONY$28.984.5★7,737 rev
Natures Answer Mullein Leaf | Herbal Supplement | Supports Healthy Respiratory Function & Healthy Mucous Membranes | Non-GMO & Kosher | Gluten-Free & Alcohol-Free 1oz
Nature's Answer$13.484.5★6,930 rev
Betterbrand Mullein Drops for Lung Detox - Mullein Leaf Tincture with Chlorophyll - Respiratory Health Support Alcohol-Free 1 Month Supply - 10:1 Extract
Betterbrand$36.234.3★4,320 rev
Mullein Drops for Lungs 120 Servings - Mullein Leaf with 7 Herbs Echinacea Oregano Ginger Elderberry Marshmallow Root & Thyme - Lung Detox for Smokers - Respiratory Immune & Lymphatic Drainage
Fidus$21.294.4★1,205 rev
HERBIFY Mullein Drops - Lung Cleanse - Leaf Extract - Powerful Mullein for Immune Support Detox & Respiratory Support - Made in USA - Lung Cleanse for Smokers - 4 Oz
HERBIFY$35.264.4★11,155 rev
Newest
by launch date
Origin Drops Mullein Super Concentrated Mullein Drops 2 Fl oz
Origin Drops$21.1511 rev
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$20.10148 rev
Mullein Drops for Lungs 120 Servings - Mullein Leaf with 7 Herbs Echinacea Oregano Ginger Elderberry Marshmallow Root & Thyme - Lung Detox for Smokers - Respiratory Immune & Lymphatic Drainage
Fidus$21.291,205 rev
LIQUIDHEALTH USDA Organic Mullein Leaf Extract Drops for Lungs - Herbal Cleansing Drops for Smokers Immune Support Respiratory Health - 1000mg 60-Day Supply Sugar-Free Made in USA (2 fl oz)
LIQUIDHEALTH$10.92427 rev
Mullein Drops for Lungs USDA Organic Mullein Leaf Extract 2 Fl Oz
HAVASU NUTRITION$17.83389 rev
Trending
90-day click momentumOrigin Drops Mullein Super Concentrated Mullein Drops 2 Fl oz
Origin Drops$21.154.1★
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$20.104.6★
vivcmin Mullein Drops for Lungs 120 Servings Respiratory & Immune Support Lung Detox for Smokers Tincture Mullein Leaf Extract for Lung Cleanse 4 fl oz
vivcmin$17.374.4★
Mullein Drops for Lungs - USDA Organic Liquid - Mullein Leaf Extract Supplement - for Women & Men - Lung & Bronchial Cleanse for Smokers - Respiratory Health Support - As Tincture Tea Pills - 2 oz
NUTRAHARMONY$26.894.5★
BREATHIUM 4-in-1 Mullein Drops for Lungs & Gut Health Liposomal Mullein Leaf Extract Made in USA Natural Lung Detox for Smokers + Immune Digestive Allergy & Mucus Relief 2oz Peppermint
BREATHIUM$28.274.4★
What reviews say buyers love and hate about mullein
What buyers praise and complain about, mined from review topics.What buyers love
“Good for cough”
“This tincture is of high quality”
“Seems effective”
“breath better”
“Good taste”
“Arrived as described”
“Great value”
“Relieves sinus”
“No side effects”
“Easy to use”
What buyers complain about
“it never worked”
“Most disgusting taste ever”
“Did not help the cough”
“Made Breathing Worse”
“Very low concentration: 250 mg per serving (vs 1200 mg per serving I normally use).”
“Allergic reaction”
“Can't say it did anything good”
“I then developed bad headaches”
“Waste of money”
“doesn't work like advertised”
Top return reasons
Common mullein questions
- Is mullein profitable to sell on Amazon United States?
- The niche generates $5.0M/yr across 20 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -21.5%. Flapen's verdict: Worth a look (63/100).
- How competitive is the mullein niche?
- 17 brands and 566 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 68% of demand.
- What do buyers complain about in mullein?
- Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Cough Relief. The return rate is 0.0%.
- When does demand for mullein peak?
- Demand peaks in Jan; the busiest month runs 2.0× the quietest.
- What does it cost to enter the mullein niche?
- Listings span $8.22–$36.23; the average listing price is $20.15 (sweet spot $15–$100). The average incumbent carries 3,077 reviews — the moat a new listing must climb.