Is castao de indias profitable to sell on Amazon United States?

The niche generates $70K/yr across 11 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.5%. Flapen's verdict: Skip it (42/100).

How competitive is the castao de indias niche?

11 brands and 18 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in castao de indias?

Top complaints mined from reviews: Allergies, Smell, Vitamin. The return rate is 0.0%.

When does demand for castao de indias peak?

Demand peaks in Aug–Sep; the busiest month runs 3.9× the quietest.

What does it cost to enter the castao de indias niche?

Listings span $8.45–$29.48; the average listing price is $17.12 (sweet spot $15–$100). The average incumbent carries 1,252 reviews — the moat a new listing must climb.

castao de indias

Skip it

A concentrated shelf (top 5 take 82% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Avg price

Great$17.12

avg listing price — sweet spot $15–$100

Price range

Good$8.45–$29.48

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

Review moat

Good1,251.82

avg incumbent reviews — the moat a new listing must climb

Conversion

Okay4.0%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay82%

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

Growth

Okay+0.5%

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

Market size

Bad$70K

$70K/yr · 103K searches

Competition

Bad82%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, castao de indias is a $70K/yr Amazon United States market (103K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 42/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

castao de indias market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $68K–$86K; units × avg price
Launch success: —; 0 of 1 new (360d)
Conversion rate: 4.0%
Avg BSR: #3,579
Page quality: 0%
Prime: 82%
Sponsored: 55%
Out of stock: 0.0%
Avg brand age: 73 months
Avg seller age: 172 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

13%

Zazzee30%
B-Experts29%
Natural de Mexico8%
Nature's Way8%
Betel Natural7%
Nurbetoxa5%
Open — no brand owns it (5 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.5% search growth over the last 90 days.

Peak months: Aug, Sep · busiest ÷ quietest = 3.9×

Open Trend

Top castao de indias search terms

castao de indias para la circulacin32K/yr +1.7%3.5% conv.
castao de indias28K/yr -12.8%3.3% conv.
castaa de indias para varices12K/yr +2.5%2.4% conv.
castaa de india9K/yr +15.2%4.3% conv.
castano de indias7K/yr +1.9%5.6% conv.
castao de indias para varices3K/yr +100.6%1.5% conv.
castaa de indias4K/yr -4.4%3.9% conv.
castano de indias organico3K/yr -16.4%3.9% conv.
castana de india natural3K/yr -5.2%5.4% conv.

All search terms

Top castao de indias 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Zazzee Extra Strength Horse Chestnut 10:1 Extract 20% Aescins 120 Vegan Capsules 4 Month Supply Aesculus Hippocastanum Healthy Circulation & Blood Flow Support Non-GMO Made in the USA

Zazzee$20.604.5★867 rev

Castao De Indias (Horse Chestnut Capsules) 1500 mg per Serving 90 Veggie Caps 100% Natural Premium Dietary Supplement Made in USA Supports Circulatory & Vein Health

B-Experts$15.364.7★137 rev

Castano de Indias Horse Chestnut Herb Herbal Tea 4 oz.-113g Natural Mexican Herb Hierba Wild Crafted Natural De Mexico

Natural de Mexico$16.984.2★19 rev

Natures Way Horse Chestnut Extract Premium Extract Supports Healthy Leg Veins* Standardized to 20% Aescin Non-GMO Project Verified Gluten Free Vegan 90 Capsules

Nature's Way$9.074.5★4,746 rev

Betel Natural Premium Castano de Indias para la Circulacion 1500 mg - Horse Chestnut 90 Caps

Betel Natural$17.854.5★897 rev

Newest

by launch date

Horse Chestnut Capsules Castao de Indias 1500 mg per Serving | Supports Circulation & Vein Health | Promotes Leg Comfort & Wellness | Vegan Non-GMO Made in USA 90 Vegetable Capsules

GREEN ROYALTY$13.8412 rev

8mo ago

Castao De Indias (Horse Chestnut Capsules) 1500 mg per Serving 90 Veggie Caps 100% Natural Premium Dietary Supplement Made in USA Supports Circulatory & Vein Health

B-Experts$15.36137 rev

1y ago

Castano de Indias Horse Chestnut Herb Herbal Tea 4 oz.-113g Natural Mexican Herb Hierba Wild Crafted Natural De Mexico

Natural de Mexico$16.9819 rev

1y ago

Nutricost Horse Chestnut Extract Capsules 700 MG Per Serving 180 Capsules 90 Servings - Non-GMO Vegan

Nutricost$15.34301 rev

2y ago

Zazzee Extra Strength Horse Chestnut 10:1 Extract 20% Aescins 120 Vegan Capsules 4 Month Supply Aesculus Hippocastanum Healthy Circulation & Blood Flow Support Non-GMO Made in the USA

Zazzee$20.60867 rev

2y ago

What buyers say about castao de indias

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

What buyers love

Quality-Overall23%

“Good quality and easy to take”

Efficiency13%

“Working exactly as our doctor expected”

Inflammation7%

“I like the positive impact this has had on reducing inflammation in my knees”

Advertised Vs Actual Product7%

“Product was as advertised”

Joint Pain6%

“Helps with foot pain and neuropathy”

Vitamin4%

“Good supplement”

Heart Health3%

“The formula is designed to support healthy blood flow, vascular function, vein health, and overall cardiovascular wellness”

Blood Pressure3%

“Helps blood flow”

Value For Money3%

“Good value for money”

Dosage2%

“Use it twice a day”

What buyers complain about

Allergies10%

“Made me sick”

Smell9%

“Smelly cream”

Vitamin8%

“Better off taking a multi-vitamin”

Functionality-Overall8%

“Didnt work”

Acid Regulator/Stomach Ache Relief8%

“stomach pain”

Blood Pressure6%

“I have a circulation issue”

Dosage6%

“3000mg is not a safe dosage”

Itch Relief5%

“Caused itching for me”

Pain Relief-Overall5%

“I normally have aching pain from my knees down to my feet 7/10 pain”

Certifications3%

“theres NO scientific proof”

Top return reasons

Functionality-Overall60%

Iron20%

Size-Overall20%

Common questions

Is castao de indias profitable to sell on Amazon United States?: The niche generates $70K/yr across 11 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.5%. Flapen's verdict: Skip it (42/100).
How competitive is the castao de indias niche?: 11 brands and 18 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in castao de indias?: Top complaints mined from reviews: Allergies, Smell, Vitamin. The return rate is 0.0%.
When does demand for castao de indias peak?: Demand peaks in Aug–Sep; the busiest month runs 3.9× the quietest.
What does it cost to enter the castao de indias niche?: Listings span $8.45–$29.48; the average listing price is $17.12 (sweet spot $15–$100). The average incumbent carries 1,252 reviews — the moat a new listing must climb.