Is respiratory supplements profitable to sell on Amazon United States?

The niche generates $237K/yr across 8 tracked products. 90-day search growth is -27.6%. Flapen's verdict: Skip it (46/100).

How competitive is the respiratory supplements niche?

6 brands and 544 sellers compete. The top 5 products take 94% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in respiratory supplements?

Top complaints mined from reviews: Functionality-Overall, Cough Relief, Breathability. The return rate is 0.0%.

When does demand for respiratory supplements peak?

Demand peaks in Oct; the busiest month runs 1.8× the quietest.

What does it cost to enter the respiratory supplements niche?

Listings span $16.00–$35.05; the average listing price is $26.37 (sweet spot $15–$100). The average incumbent carries 3,059 reviews — the moat a new listing must climb.

respiratory supplements

Skip it

A concentrated shelf (top 5 take 94% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible14.3%

search→purchase rate — share of searches ending in a sale

Avg price

Incredible$26.37

avg listing price — sweet spot $15–$100

Price range

Incredible$16.00–$35.05

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Okay$237K

$237K/yr · 63K searches

Review moat

Okay3,058.75

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-27.6%

90-day search growth — must beat 0% to launch

Brand share

Bad97%

top-5 brand share — brand-locked demand

Competition

Bad94%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, respiratory supplements is a $237K/yr Amazon United States market (63K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Oct. Verdict: Skip it — 46/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

respiratory supplements market data

Units sold / yr: 5K–6K; avg 500–750/product
Revenue / yr: $132K–$158K; units × avg price
Conversion rate: 14.3%
Avg BSR: #155
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 3.1%
Avg brand age: 87 months
Avg seller age: 156 days

Competition & brand share

The top 5 products capture 94% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

544

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

94%

Top 20: 100%

Open market

MARYRUTH'S40%
Gaia Herbs38%
NUTRAHARMONY10%
Real Science Nutrition6%
RidgeCrest Herbals4%
Natural Factors3%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -27.6% search growth over the last 90 days.

Peak months: Oct · busiest ÷ quietest = 1.8×

Open Trend

Top respiratory supplements search terms

mary ruth respiratory health16K/yr -53.0%12.0% conv.
lungenix2K/yr +272.6%0.3% conv.
copd relief5K/yr +8.9%1.1% conv.
mighty lungs gaia herbs4K/yr -14.9%20.2% conv.
natural remedies for pneumonia3K/yr +28.9%0.4% conv.
mighty lungs4K/yr -19.9%14.8% conv.
asthma supplements3K/yr -23.8%2.2% conv.
best supplement for copd4K/yr -43.9%1.7% conv.
gaia mighty lungs3K/yr -37.9%24.1% conv.
copd medicine4K/yr -56.2%3.0% conv.

All search terms

Top respiratory supplements 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 8 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MARYRUTH'S$16.004.6★2,997 rev

Gaia Herbs Mighty Lungs - Lung Support Supplement with Herbs Traditionally Used to Help Maintain Respiratory Health* - 60 Vegan Liquid Phyto-Caps (60 Servings)

Gaia Herbs$30.984.6★1,471 rev

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$20.054.5★3,143 rev

Pulmonary Miracle COPD Relief and Lung Detox Capsules to Clear Lungs & Aid Breathing - Lung Support Supplement with Vinitrox & GABA for Long-Term Cough & Respiratory Relief 60 Caps

Real Science Nutrition$35.053.8★504 rev

RidgeCrest Herbals ClearLungs Extra Strength Daily Health Supplement Natural Lung and Nasal Wellness Formula (60 Vegan Caps 30 Serv)

RidgeCrest Herbals$29.224.5★6,269 rev

Newest

by launch date

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$20.053,143 rev

2y ago

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$28.987,737 rev

2y ago

Pulmonary Miracle COPD Relief and Lung Detox Capsules to Clear Lungs & Aid Breathing - Lung Support Supplement with Vinitrox & GABA for Long-Term Cough & Respiratory Relief 60 Caps

Real Science Nutrition$35.05504 rev

3y ago

MARYRUTH'S$16.002,997 rev

5y ago

Gaia Herbs Mighty Lungs - Lung Support Supplement with Herbs Traditionally Used to Help Maintain Respiratory Health* - 60 Vegan Liquid Phyto-Caps (60 Servings)

Gaia Herbs$30.981,471 rev

5y ago

What buyers say about respiratory supplements

What buyers praise and complain about, mined from review topics.

What buyers love

Cough Relief22%

“Good for a cough”

Quality-Overall15%

“Outstanding Performance”

Breathability11%

“breath better”

Efficiency9%

“It Helps”

Advertised Vs Actual Product6%

“Arrived as described”

Value For Money3%

“Good deal”

Taste-Overall3%

“was tasty and easy to use”

Sinus Relief2%

“It helped control the mucus issues I have”

Vitamin2%

“Good supplement”

Cold Relief2%

“These supplements helped with my cold”

What buyers complain about

Functionality-Overall20%

“Don't work well for me”

Cough Relief11%

“Did not help the cough”

Breathability8%

“Made Breathing Worse”

Taste-Overall5%

“Also I assumed this would taste awful based on the look, however, it tastes like raisons”

Value For Money4%

“a little pricey”

Side Effects4%

“I then developed bad headaches”

Allergies3%

“Allergies”

Quality-Overall2%

“Junk”

Dosage2%

“Couldnt tell any difference after one capsule”

Sinus Relief2%

“Gave me a very bad reactions Not a good product for only sinus”

Top return reasons

Ingredients-Overall35%

Functionality-Overall25%

Instructions/User Manual/Troubleshooting10%

Blood Pressure10%

Advertised Vs Actual Product10%

Blood Sugar Level10%

Common questions

Is respiratory supplements profitable to sell on Amazon United States?: The niche generates $237K/yr across 8 tracked products. 90-day search growth is -27.6%. Flapen's verdict: Skip it (46/100).
How competitive is the respiratory supplements niche?: 6 brands and 544 sellers compete. The top 5 products take 94% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in respiratory supplements?: Top complaints mined from reviews: Functionality-Overall, Cough Relief, Breathability. The return rate is 0.0%.
When does demand for respiratory supplements peak?: Demand peaks in Oct; the busiest month runs 1.8× the quietest.
What does it cost to enter the respiratory supplements niche?: Listings span $16.00–$35.05; the average listing price is $26.37 (sweet spot $15–$100). The average incumbent carries 3,059 reviews — the moat a new listing must climb.