Is egcg profitable to sell on Amazon United States?

The niche generates $527K/yr across 18 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +12.9%. Flapen's verdict: Worth a look (58/100).

How competitive is the egcg niche?

13 brands and 29 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in egcg?

Top complaints mined from reviews: Weight Loss, Taste-Overall, Side Effects. The return rate is 0.0%.

When does demand for egcg peak?

Demand peaks in Aug–Sep; the busiest month runs 2.6× the quietest.

What does it cost to enter the egcg niche?

Listings span $7.44–$53.45; the average listing price is $21.58 (sweet spot $15–$100). The average incumbent carries 1,460 reviews — the moat a new listing must climb.

egcg

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

Great$21.58

avg listing price — sweet spot $15–$100

Price range

Great$7.44–$53.45

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

Conversion

Great8.5%

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

Market size

Good$527K

$527K/yr · 289K searches

Review moat

Good1,460.44

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay78%

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

Growth

Okay+12.9%

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

Competition

Okay63%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, egcg is a $527K/yr Amazon United States market (289K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 58/100.

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

egcg market data

Units sold / yr: 25K–30K; avg 1,500–2,000/product
Revenue / yr: $540K–$647K; units × avg price
Conversion rate: 8.5%
Avg BSR: #213
Page quality: 0%
Prime: 100%
Sponsored: 83%
Out of stock: 6.7%
Avg brand age: 85 months
Avg seller age: 154 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

18%

NOW Foods39%
Zazzee16%
Life Extension11%
Designs for Health7%
Pure Encapsulations6%
Micro Ingredients4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +12.9% search growth over the last 90 days.

Peak months: Aug, Sep · busiest ÷ quietest = 2.6×

Open Trend

Top egcg search terms

egcg98K/yr +64.1%5.3% conv.
egcg supplements42K/yr -10.3%8.7% conv.
egcg green tea extract34K/yr +2.1%6.3% conv.
ecgc17K/yr +11.4%8.5% conv.
ecgc supplement15K/yr -8.5%7.6% conv.
egcg green tea8K/yr -2.8%2.0% conv.
green tea egcg7K/yr -4.1%4.2% conv.
green tea extract egcg9K/yr -33.9%6.1% conv.
catechin7K/yr -5.0%2.4% conv.
green tea catechins8K/yr -40.2%3.5% conv.

All search terms

Top egcg 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 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NOW Foods Supplements EGCg Green Tea Extract Dietary 400 mg Free Radical Scavenger* 180 Veg Capsules

NOW Foods$17.234.5★5,612 rev

NOW Foods Supplements EGCg Green Tea Extract 400 mg Free Radical Scavenger* 90 Veg Capsules

NOW Foods$10.584.5★5,612 rev

Life Extension Decaffeinated Mega Green Tea Extract Polyphenol-Rich Cell Health Heart Health Brain Health Antioxidant Protection Non-GMO Gluten-Free Vegetarian 100 Capsules

Life Extension$17.564.4★1,720 rev

Zazzee Extra Strength Green Tea 20:1 Extract 50% EGCG 98% Polyphenols 80% Catechins 150 Vegan Capsules 5 Month Supply Certified Kosher Antioxidant & Metabolism Support Non-GMO Made in the USA

Zazzee$23.674.5★2,952 rev

Designs for Health EGCg - Decaffeinated Green Tea Extract (225mg) + Polyphenols Antioxidant Supplement - Non-GMO Vegan Green Tea Pills (60 Capsules)

Designs for Health$31.024.4★414 rev

Newest

by launch date

EGCG Green Tea Extract Supplements 50% EGCG 120 Count (Pack of 1)

Herbounty$19.5711 rev

2mo ago

Zazzee USDA Organic Green Tea 20:1 Extract 50% EGCG 98% Polyphenols 80% Catechins 120 Vegan Capsules 4 Month Supply Antioxidant Metabolism & Energy Support Non-GMO All-Natural Made in USA

Zazzee$20.70197 rev

11mo ago

Zazzee Extra Strength Green Tea 20:1 Extract 50% EGCG 98% Polyphenols 80% Catechins 90 Vegan Capsules 3 Month Supply Certified Kosher Antioxidant & Metabolism Support Non-GMO Made in the USA

Zazzee$16.952,952 rev

1y ago

Micro Ingredients Extra Strength Green Tea Extract 300 Capsules | 5 Month Supply | Maximum Potency Polyphenols Antioxidant Supplement for Skin Energy Brain & Heart Support*

Micro Ingredients$14.78287 rev

1y ago

Green Tea Extract - 50% EGCG Extra Strength 20:1 Extract - Natural Green Tea Supplement + Green Coffee Beans & Apple Cider Vinegar - Energy & Metabolism Support - for Men & Women - Vegan 120 Capsules

NUTRAHARMONY$16.20860 rev

2y ago

What buyers say about egcg

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

What buyers love

Quality-Overall15%

“Good quality”

Taste-Overall9%

“Easy to take - good taste”

Energy Level9%

“boosts your energy level”

Advertised Vs Actual Product9%

“Product is as described”

Weight Loss6%

“seems to be as effective as the last brand I purchased for weight loss[which was apparently discontinued]”

Value For Money6%

“Cost effective”

Ease Of Use4%

“Easy to use”

Ingredients-Overall4%

“Great ingredients”

Ease Of Chewing/Swallowing3%

“The capsules are easy to take”

Efficiency3%

“does It Work”

What buyers complain about

Weight Loss8%

“Dont work didnt help no weight loss or suppression of appetite”

Taste-Overall7%

“No taste to the capsules at all”

Side Effects7%

“it made me terribly nauseated”

Acid Regulator/Stomach Ache Relief5%

“Bothered My Stomach - NOT RETURNABLE”

Energy Level4%

“no boost in my energy at all”

Ingredients-Overall4%

“No communication response from micro ingredients CS”

Heart Health4%

“Causes heartburn”

Nutritional Content3%

“I've been seeing some truly tacky-looking labeling on cheap supplements”

Regulates Digestion3%

“Liver problems”

Functionality-Overall3%

“Unfortunately, I didn't get even a spark of energy”

Top return reasons

Blood Pressure33%

Joint Pain33%

Dosage33%

Common questions

Is egcg profitable to sell on Amazon United States?: The niche generates $527K/yr across 18 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +12.9%. Flapen's verdict: Worth a look (58/100).
How competitive is the egcg niche?: 13 brands and 29 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in egcg?: Top complaints mined from reviews: Weight Loss, Taste-Overall, Side Effects. The return rate is 0.0%.
When does demand for egcg peak?: Demand peaks in Aug–Sep; the busiest month runs 2.6× the quietest.
What does it cost to enter the egcg niche?: Listings span $7.44–$53.45; the average listing price is $21.58 (sweet spot $15–$100). The average incumbent carries 1,460 reviews — the moat a new listing must climb.