Is flavonoids profitable to sell on Amazon United States?

The niche generates $403K/yr across 20 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -10.0%. Flapen's verdict: Worth a look (57/100).

How competitive is the flavonoids niche?

15 brands and 87 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 72% of demand.

What do buyers complain about in flavonoids?

Top complaints mined from reviews: Functionality-Overall, Value For Money, Taste-Overall. The return rate is 0.0%.

When does demand for flavonoids peak?

Demand peaks in Mar–Apr–May–Jun; the busiest month runs 2.5× the quietest.

What does it cost to enter the flavonoids niche?

Listings span $9.23–$50.51; the average listing price is $25.68 (sweet spot $15–$100). The average incumbent carries 2,868 reviews — the moat a new listing must climb.

flavonoids

Worth a look

Shows 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

Avg price

Incredible$25.68

avg listing price — sweet spot $15–$100

Price range

Great$9.23–$50.51

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

Conversion

Great8.3%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good$403K

$403K/yr · 190K searches

Brand share

Good72%

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

Review moat

Okay2,868.2

avg incumbent reviews — the moat a new listing must climb

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-10.0%

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

According to Flapen's Amazon United States niche tracking, flavonoids is a $403K/yr Amazon United States market (190K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Worth a look — 57/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

flavonoids market data

Units sold / yr: 15K–20K; avg 750–1,000/product
Revenue / yr: $385K–$514K; units × avg price
Conversion rate: 8.3%
Avg BSR: #645
Page quality: 0%
Prime: 100%
Sponsored: 65%
Out of stock: 0.0%
Avg brand age: 81 months
Avg seller age: 148 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 flat

Sellers

Top-5 brand share

72%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

23%

NOW Foods30%
Horbäach17%
Swanson13%
Lipo-Flavonoid7%
Black Forest5%
Clenoriko5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -10.0% search growth over the last 90 days.

Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 2.5×

Open Trend

Top flavonoids search terms

bioflavonoids31K/yr -3.4%4.8% conv.
citrus bioflavonoids26K/yr +34.6%10.0% conv.
flavonoids26K/yr -7.5%4.3% conv.
flavonoids supplements34K/yr -33.5%4.6% conv.
bioflavonoids supplements20K/yr -3.3%4.7% conv.
citrus bioflavonoids supplement8K/yr +11.0%12.3% conv.
flavonoid antioxidant supplements6K/yr -22.2%1.4% conv.
flavonoid10K/yr -47.1%4.7% conv.
lemon bioflavonoids5K/yr -6.7%9.7% conv.
flavonoids for hemorrhoids7K/yr -31.8%2.8% conv.

All search terms

Top flavonoids 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 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NOW Supplements Citrus Bioflavonoids 700mg Supports Immune System* Cell Defense* 100 Capsules

NOW Foods$9.234.5★1,594 rev

Horbach Citrus Bioflavonoids Complex | 1500mg | 300 Coated Caplets

Horbäach$22.354.4★593 rev

Swanson Full Spectrum Citrus Bioflavonoid Complex Immune and Antioxidant Supplement for Adults Seeking Enhanced Vitamin C Absorption - 50% Standardized (250 Capsules)

Swanson$21.934.6★584 rev

Black Forest High Flavanol Cocoa Powder - 1200mg Flavanols & Flavonoids with 600mg Epicatechin - 10X Concentrated Dark Cocoa Extract for Nitric Oxide and Wellness Support - Non-GMO Vegan

Black Forest$40.774.4★2,461 rev

Clenoriko Citrus Bioflavonoids 1000mg with Quercetin & Rutin - Bioflavonoids for Antioxidant & Circulation* Flavonoids Supplements - Standardized to 50% Hesperidin 120 Capsules (60-Day Supply)

Clenoriko$23.384.6★20 rev

Newest

by launch date

Clenoriko Citrus Bioflavonoids 1000mg with Quercetin & Rutin - Bioflavonoids for Antioxidant & Circulation* Flavonoids Supplements - Standardized to 50% Hesperidin 120 Capsules (60-Day Supply)

Clenoriko$23.3820 rev

2mo ago

Gyumolics Flavonoid Supplement Gummies 3000mg Bioflavonoid Complex with Hesperidin Quercetin Lemon Bioflavonoids & Vitamin C 60 Gummies

Gyumolics$20.40211 rev

1y ago

Black Forest High Flavanol Cocoa Powder - 1200mg Flavanols & Flavonoids with 600mg Epicatechin - 10X Concentrated Dark Cocoa Extract for Nitric Oxide and Wellness Support - Non-GMO Vegan

Black Forest$40.772,461 rev

1y ago

Flavonoids 60 days Support Healthy Circulation Veins Capillaries and Lymphatic Drainage- MPFF- Micronized Diosmin 150mg + Hesperidin 150mg + Horse Chestnut150 mg- GMP Certificate vegan

PureLife Nutrition$28.85156 rev

3y ago

LIPO Balance Support Supplement for Dizziness & Vertigo - Inner Ear Health & Circulation Formula with Ginkgo Biloba Vitamin D & B Complex - Supports Balance & Stability - 30 Ct

Lipo-Flavonoid$19.542,364 rev

3y ago

What buyers say about flavonoids

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

What buyers love

Taste-Overall22%

“Smooth taste”

Quality-Overall15%

“Amazing quality”

Flavor8%

“Authentic flavor”

Energy Level5%

“Boost of energy”

Value For Money4%

“Reasonable price”

Solubility4%

“It mixes well”

Advertised Vs Actual Product4%

“As advertise”

Health Benefits-Overall4%

“Great healthy product”

Nutritional Content3%

“Healthy Supplement”

Ingredients-Overall3%

“Healthy ingredients”

What buyers complain about

Functionality-Overall29%

“Did not work”

Value For Money9%

“Way overpriced”

Taste-Overall8%

“Awful taste”

Bitter4%

“Bitter”

Advertised Vs Actual Product4%

“did not work like it advertised”

Dosage3%

“Dosen't work”

Side Effects3%

“it made me dizzy”

Ingredients-Overall2%

“This product is not formulated or labeled that way”

Quality-Overall2%

“Garbage”

Flavor2%

“this one takes the cake on having the worst flavor possible”

Top return reasons

Functionality-Overall20%

Acid Regulator/Stomach Ache Relief10%

Size-Overall10%

Ease Of Chewing/Swallowing10%

Certifications10%

Stain Resistance10%

Value For Money10%

Vitamin10%

Texture/Consistency-Overall5%

Color5%

Common questions

Is flavonoids profitable to sell on Amazon United States?: The niche generates $403K/yr across 20 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -10.0%. Flapen's verdict: Worth a look (57/100).
How competitive is the flavonoids niche?: 15 brands and 87 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 72% of demand.
What do buyers complain about in flavonoids?: Top complaints mined from reviews: Functionality-Overall, Value For Money, Taste-Overall. The return rate is 0.0%.
When does demand for flavonoids peak?: Demand peaks in Mar–Apr–May–Jun; the busiest month runs 2.5× the quietest.
What does it cost to enter the flavonoids niche?: Listings span $9.23–$50.51; the average listing price is $25.68 (sweet spot $15–$100). The average incumbent carries 2,868 reviews — the moat a new listing must climb.