---
title: "Egcg — $527K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/egcg"
last_updated: "2026-08-06T16:29:18.212Z"
locale: en
meta:
description: "Niche score 58/100 · $527K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 58/100 · $527K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Egcg — $527K/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 61Growth 41Conversion 81Competition 37Returns 100Price range 82Avg price 91Brand share 45Review moat 51Quality gap 33
**Returns**
**Incredible****0.0%**
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**
**Great****8.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$527K**
$527K/yr · 289K searches
**Review moat**
**Good****1,460.44**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+12.9%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
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 ~~](https://flapen.com/research/methodology)
## **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**
**29**
**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.
18K13KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/health-household/egcg/trend)
## **Top egcg search terms**
- **egcg**98K/yr+64.1%5.3% conv. - **egcg supplements**42K/yr-10.3%8.7% conv. - **egcg green tea extract**34K/yr+2.1%6.3% conv. - **ecgc**17K/yr+11.4%8.5% conv. - **ecgc supplement**15K/yr-8.5%7.6% conv. - **egcg green tea**8K/yr-2.8%2.0% conv. - **green tea egcg**7K/yr-4.1%4.2% conv. - **green tea extract egcg**9K/yr-33.9%6.1% conv. - **catechin**7K/yr-5.0%2.4% conv. - **green tea catechins**8K/yr-40.2%3.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/egcg/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.
0%10%$53K20%$105K30%$158K40%$211K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**NOW Foods Supplements EGCg Green Tea Extract Dietary 400 mg Free Radical Scavenger* 180 Veg Capsules**NOW Foods**$17.23**4.5★5,612 rev](https://www.amazon.com/dp/B001DNV5CA) [2**NOW Foods Supplements EGCg Green Tea Extract 400 mg Free Radical Scavenger* 90 Veg Capsules**NOW Foods**$10.58**4.5★5,612 rev](https://www.amazon.com/dp/B0019LRYK8) [3**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**$17.56**4.4★1,720 rev](https://www.amazon.com/dp/B000MYW2ZA) [4**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**$23.67**4.5★2,952 rev](https://www.amazon.com/dp/B07Q5Q25LR) [5**Designs for Health EGCg - Decaffeinated Green Tea Extract (225mg) + Polyphenols Antioxidant Supplement - Non-GMO Vegan Green Tea Pills (60 Capsules)**Designs for Health**$31.02**4.4★414 rev](https://www.amazon.com/dp/B000FGXLQY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**EGCG Green Tea Extract Supplements 50% EGCG 120 Count (Pack of 1)**Herbounty**$19.57**11 rev2mo ago](https://www.amazon.com/dp/B0H5PRFP2K) [**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**$20.70**197 rev11mo ago](https://www.amazon.com/dp/B0FNRWVVDH) [**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**$16.95**2,952 rev1y ago](https://www.amazon.com/dp/B0F9FVJ9LL) [**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**$14.78**287 rev1y ago](https://www.amazon.com/dp/B0DVMFPFJ1) [**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**$16.20**860 rev2y ago](https://www.amazon.com/dp/B0DPQVS82S)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**EGCG Green Tea Extract Supplements 50% EGCG 120 Count (Pack of 1)**Herbounty**$19.57**5.0★**▲ 280%**](https://www.amazon.com/dp/B0H5PRFP2K) [**BulkSupplements.comgreen Tea Extract Powder - 50% Polyphenols Supplement EGCG Supplements - Gluten Free 500mg per Serving 250g (8.8 oz) (Pack of 1)**BulkSupplements**$17.33**4.4★**▲ 63%**](https://www.amazon.com/dp/B00GW5FQ1U) [**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**$20.70**4.5★**▲ 59%**](https://www.amazon.com/dp/B0FNRWVVDH) [**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**$16.95**4.5★**▲ 50%**](https://www.amazon.com/dp/B0F9FVJ9LL) [**THORNE - Green Tea Phytosome - Provides Antioxidant Support Liver Protection & Thermogenesis and Metabolic Benefits* - Caffeine-Free - Third-Party Certified - Gluten Dairy & Soy-Free - 60 Capsules**THORNE**$32.79**4.7★**▲ 41%**](https://www.amazon.com/dp/B0012S8LNC)
**~~View all trending →~~**
## **What buyers say about egcg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Good quality”*
**Taste-Overall**9%
*“Easy to take - good taste”*
**Energy Level**9%
*“boosts your energy level”*
**Advertised Vs Actual Product**9%
*“Product is as described”*
**Weight Loss**6%
*“seems to be as effective as the last brand I purchased for weight loss[which was apparently discontinued]”*
**Value For Money**6%
*“Cost effective”*
**Ease Of Use**4%
*“Easy to use”*
**Ingredients-Overall**4%
*“Great ingredients”*
**Ease Of Chewing/Swallowing**3%
*“The capsules are easy to take”*
**Efficiency**3%
*“does It Work”*
### **What buyers complain about **
**Weight Loss**8%
*“Dont work didnt help no weight loss or suppression of appetite”*
**Taste-Overall**7%
*“No taste to the capsules at all”*
**Side Effects**7%
*“it made me terribly nauseated”*
**Acid Regulator/Stomach Ache Relief**5%
*“Bothered My Stomach - NOT RETURNABLE”*
**Energy Level**4%
*“no boost in my energy at all”*
**Ingredients-Overall**4%
*“No communication response from micro ingredients CS”*
**Heart Health**4%
*“Causes heartburn”*
**Nutritional Content**3%
*“I've been seeing some truly tacky-looking labeling on cheap supplements”*
**Regulates Digestion**3%
*“Liver problems”*
**Functionality-Overall**3%
*“Unfortunately, I didn't get even a spark of energy”*
### **Top return reasons **
**Blood Pressure**33%
**Joint Pain**33%
**Dosage**33%
## **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.
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