Is corydalis profitable to sell on Amazon United States?

The niche generates $50K/yr across 13 tracked products. 90-day search growth is -43.6%. Flapen's verdict: Skip it (47/100).

How competitive is the corydalis niche?

11 brands and 19 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 79% of demand.

What do buyers complain about in corydalis?

Top complaints mined from reviews: Taste-Overall, Ease Of Use, Pain Relief-Overall. The return rate is 0.2%.

What does it cost to enter the corydalis niche?

Listings span $10.38–$43.72; the average listing price is $26.93 (sweet spot $15–$100). The average incumbent carries 296 reviews — the moat a new listing must climb.

corydalis

Skip it

Soft demand (-43.6% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Avg price

Incredible$26.93

avg listing price — sweet spot $15–$100

Review moat

Great296.46

avg incumbent reviews — the moat a new listing must climb

Price range

Great$10.38–$43.72

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good5.9%

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

Brand share

Okay79%

top-5 brand share — brands hold most of the demand

Competition

Bad73%

top-5 click share — a locked-up shelf

Market size

Bad$50K

$50K/yr · 32K searches

Growth

Bad-43.6%

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

According to Flapen's Amazon United States niche tracking, corydalis is a $50K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 79% of demand. Verdict: Skip it — 47/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

corydalis market data

Units sold / yr: 2K–3K; avg 100–250/product
Revenue / yr: $54K–$67K; units × avg price
Conversion rate: 5.9%
Avg BSR: #5,446
Page quality: 0%
Prime: 85%
Sponsored: 69%
Out of stock: 24.8%
Avg brand age: 88 months
Avg seller age: 176 days

Competition & brand share

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

73%

Top 20: 100%

Open market

15%

Parker Naturals25%
NusaPure23%
Biotech Nutritions15%
Herb Pharm10%
Swanson6%
Health Concerns6%
Open — no brand owns it (5 brands, 15%)

Demand

Weekly Amazon search volume, last 23 weeks — -43.6% search growth over the last 90 days.

Open Trend

Top corydalis search terms

corydalis20K/yr -43.3%5.4% conv.
corydalis for pain6K/yr -49.6%6.9% conv.
corydalis yanhusuo6K/yr -35.3%4.0% conv.

All search terms

Top corydalis 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 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NusaPure Corydalis Root Capsules 500 mg 180 Veg Capsules (Non-GMO Vegan)

NusaPure$19.564.2★323 rev

Pure Corydalis Root Extract Capsule - 1000mg Strength 10:1 Corydalis Yanhusuo Extract Natural Relief Long Lasting 100% Vegetarian 60 Servings 120 Count

Parker Naturals$19.884.0★1,214 rev

Biotech Nutritions Pure Corydalis Dietary Supplement 10:1 Extract 1000 mg 120 Count

Biotech Nutritions$10.384.1★582 rev

Herb Pharm Corydalis Extract Liquid 1 Oz

Herb Pharm$17.764.2★46 rev

Swanson Full Spectrum Corydalis 400 Milligrams 60 Veg Capsules

Swanson$12.684.2★66 rev

Newest

by launch date

Yan Hu SUO (Corydalis Ambigua) Dry Root Tincture All Natural Vegan Pure Liquid Extract - 2 fl.oz

Hawaii Pharm$21.944 rev

1y ago

Pure Natural Dried Rhizoma Corydalis Yanhusuo Corydalis Root. (250g)

Generic$36.963 rev

3y ago

Health Concerns Channel Flow Muscle Relaxation & Pain Support Supplement for Men & Women Corydalis Root Extract Chinese Herbal Formula for Headaches Joint & Menstrual Discomfort 60 Capsules

Health Concerns$37.8135 rev

4y ago

Herb Pharm Corydalis Extract Liquid 1 Oz

Herb Pharm$17.7646 rev

5y ago

Herb Pharm Corydalis Liquid Extract 4 Oz

Herb Pharm$43.7246 rev

5y ago

What buyers say about corydalis

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

What buyers love

Value For Money23%

“Because it work the value for the money was good”

Quality-Overall20%

“Quality product”

Efficiency15%

“It works fair”

Inflammation10%

“Very effective for inflammation”

Vitamin10%

“I take magnolia supplements which are very good”

Durability8%

“it seems to stay good all through the day”

Soothing Effect4%

“it does dull the pain well”

Sleep Quality4%

“It helps me sleep too”

Focus Enhancement3%

“The effects focusing on inflammation is amazing”

What buyers complain about

Taste-Overall25%

“Worst taste EVER”

Ease Of Use25%

“its harder to fight it”

Pain Relief-Overall19%

“Doesnt do anything for pain at all”

Functionality-Overall13%

“Doesnt work”

Value For Money6%

“so cant say value v cost”

Top return reasons

Certifications33%

Advertised Vs Actual Product33%

Functionality-Overall17%

Pain Relief-Overall17%

Common questions

Is corydalis profitable to sell on Amazon United States?: The niche generates $50K/yr across 13 tracked products. 90-day search growth is -43.6%. Flapen's verdict: Skip it (47/100).
How competitive is the corydalis niche?: 11 brands and 19 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 79% of demand.
What do buyers complain about in corydalis?: Top complaints mined from reviews: Taste-Overall, Ease Of Use, Pain Relief-Overall. The return rate is 0.2%.
What does it cost to enter the corydalis niche?: Listings span $10.38–$43.72; the average listing price is $26.93 (sweet spot $15–$100). The average incumbent carries 296 reviews — the moat a new listing must climb.