---
title: "Cancer Supplements — $92K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/cancer-supplements"
last_updated: "2026-08-10T18:16:09.505Z"
locale: en
meta:
description: "Niche score 39/100 · $92K/yr market · 49K searches/yr · $23.41 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $92K/yr market · 49K searches/yr · $23.41 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cancer Supplements — $92K/yr Amazon US Niche (2026) - Flapen"
---
# **cancer supplements**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 23Growth 33Conversion 79Competition 0Returns 100Price range 88Avg price 95Brand share 0Review moat 23Quality gap 25
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$23.41**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$12.62–$38.98**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****8.0%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+6.5%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$92K**
$92K/yr · 49K searches
**Review moat**
**Bad****8,598.8**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, cancer supplements is a $92K/yr Amazon United States market (49K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cancer supplements market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$70K–$94K**
- units × avg price
- **Conversion rate**
- **8.0%**
- **Avg BSR**
- **#406**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **40%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **88 months**
- **Avg seller age**
- **155 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**7**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- MEDCHOICE84% - Carlyle6% - Clean Nutraceuticals5% - Horbäach5% - Open — no brand owns it (0%)
## **Demand**
Weekly Amazon search volume, last 51 weeks — +6.5% search growth over the last 90 days.
1K750Spike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26
[**Open Trend **](https://flapen.com/research/us/health-household/cancer-supplements/trend)
## **Top cancer supplements search terms**
- **medchoice turmeric bioperine garlic ginger**8K/yr+197.4%9.9% conv. - **cancer supplements**13K/yr-6.4%0.9% conv. - **anti cancer supplement**6K/yr-17.5%1.4% conv. - **kill cancer supplement**4K/yr-9.4%0.2% conv. - **cancer fighting supplement**5K/yr-40.4%0.6% conv. - **turmeric garlic ginger supplement**3K/yr-19.2%10.1% conv. - **cancer prevention supplements**2K/yr-31.5%0.5% conv. - **cancer killer supplements**7K/yr-60.9%0.4% conv. - **turmeric bioperine garlic ginger 2360mg**2K/yr-38.0%19.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/cancer-supplements/search-terms)
## **Top cancer supplements 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%20%$18K40%$37K60%$55K80%$74K1K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**4-in-1 Turmeric Joint Support Supplements with Garlic and BioPerine - 2360 mg High Potency Herbal Blend for Mobility Everyday Flexibility Digestive Comfort and Active Aging Support (120ct)**MEDCHOICE**$23.60**4.6★18,225 rev](https://www.amazon.com/dp/B08BWN8M3Y) [2**4-in-1 Turmeric Joint Support Supplements with Garlic and BioPerine - 2360 mg High Potency Herbal Blend for Mobility Everyday Flexibility Digestive Comfort Active Aging Support (120ct Pack of 2)**MEDCHOICE**$38.98**4.6★18,225 rev](https://www.amazon.com/dp/B09B7YNQPQ) [3**Carlyle Soursop Leaves | 160 Capsules | Traditional Herb**Carlyle**$13.91**4.6★1,451 rev](https://www.amazon.com/dp/B0D241FVKR) [4**Clean Nutra Soursop Supplement Moringa Sea Moss Black Seed Oil Berberine Turmeric Resveratrol Quercetin Greens Bitters Boswellia Bitter Melon Burdock Root Antioxidant Support 90 Capsules**Clean Nutraceuticals**$27.95**4.6★1,072 rev](https://www.amazon.com/dp/B0FBL155G1) [5**Horbach Graviola Capsules | 120 Count | Soursop (Annona Muricata)**Horbäach**$12.62**4.6★4,021 rev](https://www.amazon.com/dp/B07HZ3FF4G)
### **Newest**
by launch date
[**Clean Nutra Soursop Supplement Moringa Sea Moss Black Seed Oil Berberine Turmeric Resveratrol Quercetin Greens Bitters Boswellia Bitter Melon Burdock Root Antioxidant Support 90 Capsules**Clean Nutraceuticals**$27.95**1,072 rev1y ago](https://www.amazon.com/dp/B0FBL155G1) [**Carlyle Soursop Leaves | 160 Capsules | Traditional Herb**Carlyle**$13.91**1,451 rev2y ago](https://www.amazon.com/dp/B0D241FVKR) [**4-in-1 Turmeric Joint Support Supplements with Garlic and BioPerine - 2360 mg High Potency Herbal Blend for Mobility Everyday Flexibility Digestive Comfort Active Aging Support (120ct Pack of 2)**MEDCHOICE**$38.98**18,225 rev5y ago](https://www.amazon.com/dp/B09B7YNQPQ) [**4-in-1 Turmeric Joint Support Supplements with Garlic and BioPerine - 2360 mg High Potency Herbal Blend for Mobility Everyday Flexibility Digestive Comfort and Active Aging Support (120ct)**MEDCHOICE**$23.60**18,225 rev6y ago](https://www.amazon.com/dp/B08BWN8M3Y) [**Horbach Graviola Capsules | 120 Count | Soursop (Annona Muricata)**Horbäach**$12.62**4,021 rev7y ago](https://www.amazon.com/dp/B07HZ3FF4G)
### **Trending**
90-day click momentum
[**Clean Nutra Soursop Supplement Moringa Sea Moss Black Seed Oil Berberine Turmeric Resveratrol Quercetin Greens Bitters Boswellia Bitter Melon Burdock Root Antioxidant Support 90 Capsules**Clean Nutraceuticals**$27.95**4.6★**▲ 79%**](https://www.amazon.com/dp/B0FBL155G1) [**4-in-1 Turmeric Joint Support Supplements with Garlic and BioPerine - 2360 mg High Potency Herbal Blend for Mobility Everyday Flexibility Digestive Comfort and Active Aging Support (120ct)**MEDCHOICE**$23.60**4.6★**▲ 18%**](https://www.amazon.com/dp/B08BWN8M3Y) [**Horbach Graviola Capsules | 120 Count | Soursop (Annona Muricata)**Horbäach**$12.62**4.6★**▼ 25%**](https://www.amazon.com/dp/B07HZ3FF4G) [**Carlyle Soursop Leaves | 160 Capsules | Traditional Herb**Carlyle**$13.91**4.6★**▼ 36%**](https://www.amazon.com/dp/B0D241FVKR) [**4-in-1 Turmeric Joint Support Supplements with Garlic and BioPerine - 2360 mg High Potency Herbal Blend for Mobility Everyday Flexibility Digestive Comfort Active Aging Support (120ct Pack of 2)**MEDCHOICE**$38.98**4.6★**▼ 46%**](https://www.amazon.com/dp/B09B7YNQPQ)
## **What buyers say about cancer supplements**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“This is the highest-quality fish oil Ive used”*
**Joint Pain**9%
*“Good for joint pain”*
**Inflammation**8%
*“Great for inflammation”*
**Vitamin**6%
*“Quality vitamin at an affordable price”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Value For Money**4%
*“Great deal”*
**Ingredients-Overall**4%
*“Pure Ingredients”*
**Ease Of Chewing/Swallowing**4%
*“Easy to swallow”*
**Immunity Booster**3%
*“Great supplement that helps boost immune system”*
**Nutritional Content**3%
*“Overall, health benefits”*
### **What buyers complain about **
**Functionality-Overall**13%
*“Doesn't work”*
**Dosage**8%
*“Concerned about the dosage”*
**Allergies**6%
*“Was Allergic to it”*
**Acid Regulator/Stomach Ache Relief**6%
*“and Bloating”*
**Value For Money**6%
*“Price is too high”*
**Side Effects**5%
*“Painful side effects”*
**Size-Overall**4%
*“The capsules are a little large”*
**Ingredients-Overall**4%
*“Contains toxic ingredients”*
**Vitamin**3%
*“Another garbage supplement from Amazon I did not notice any benefit”*
**Joint Pain**2%
*“Didnt work for my rheumatoid arthritis swelling or pain”*
### **Top return reasons **
**Value For Money**75%
**Quality-Overall**13%
**Dosage**13%
## **Common questions**
- **Is cancer supplements profitable to sell on Amazon United States?**
- The niche generates $92K/yr across 5 tracked products. 90-day search growth is +6.5%. Flapen's verdict: Skip it (39/100).
- **How competitive is the cancer supplements niche?**
- 4 brands and 7 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in cancer supplements?**
- Top complaints mined from reviews: Functionality-Overall, Dosage, Allergies. The return rate is 0.0%.
- **What does it cost to enter the cancer supplements niche?**
- Listings span $12.62–$38.98; the average listing price is $23.41 (sweet spot $15–$100). The average incumbent carries 8,599 reviews — the moat a new listing must climb.
## **Related niches in Health & Household**
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)