---
title: "666 Cold Medicine — $443K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/666-cold-medicine"
last_updated: "2026-08-09T03:43:39.859Z"
locale: en
meta:
description: "Niche score 38/100 · $443K/yr market · 425K searches/yr · $13.89 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 38/100 · $443K/yr market · 425K searches/yr · $13.89 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "666 Cold Medicine — $443K/yr Amazon US Niche (2026) - Flapen"
---
# **666 cold medicine**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 57Growth 9Conversion 77Competition 4Returns 100Price range 34Avg price 66Brand share 0Review moat 42Quality gap 21
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$13.89**
avg listing price — sweet spot $15–$100
**Market size**
**Good****$443K**
$443K/yr · 425K searches
**Review moat**
**Okay****2,318.86**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****$9.88–$17.64**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-31.7%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****95%**
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, 666 cold medicine is a $443K/yr Amazon United States market (425K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Skip it — 38/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **666 cold medicine market data**
- **Units sold / yr**
- **30K–40K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$417K–$556K**
- units × avg price
- **Conversion rate**
- **7.5%**
- **Avg BSR**
- **#594**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **43%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **74 months**
- **Avg seller age**
- **159 days**
## **Competition & brand share**
The top 5 products capture 95% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▼falling
**Sellers**
**47**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**95%**
Top 20: 100%
**Open market**
**0%**
- S.S.S. CO.72% - FATHER JOHN'S22% - Creomulsion6% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -31.7% search growth over the last 90 days.
25K15KSpike '24Holiday '24Spike '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Dec · busiest ÷ quietest = 4.8×
[**Open Trend **](https://flapen.com/research/us/health-household/666-cold-medicine/trend)
## **Top 666 cold medicine search terms**
- **sss**87K/yr-8.1%0.3% conv. - **sss tonic**78K/yr-8.7%13.9% conv. - **sss tonic high potency iron liquid**56K/yr-23.1%13.4% conv. - **666 cold medicine**49K/yr-51.6%0.2% conv. - **father johns cough medicine**66K/yr-66.7%10.3% conv. - **creomulsion cough syrup for adults**14K/yr-33.3%12.5% conv. - **father john**10K/yr-20.9%6.3% conv. - **ss tonic**6K/yr+16.0%11.8% conv. - **father john medicine**6K/yr-35.9%5.5% conv. - **creomulsion**7K/yr-46.6%7.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/666-cold-medicine/search-terms)
## **Top 666 cold medicine 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%15%$66K30%$133K45%$199K60%$266K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**S.S.S. Tonic High Potency Iron Supplement with B1 B2 B3 Vitamins 20 fl oz Liquid Formula for Energy Vitality & Wellness Easy-to-Take Iron-Rich Made in USA for Women & Men**S.S.S. CO.**$16.70**4.7★5,873 rev](https://www.amazon.com/dp/B000R9MNRC) [2**S.S.S. Tonic Iron and Vitamin B Supplement High Potency Vitamins Bottle 10 Fl Oz (Pack of 1)**S.S.S. CO.**$9.92**4.7★2,863 rev](https://www.amazon.com/dp/B08GVPLV4N) [3**Father Johns Alcohol Free Cough Medicine 8 Ounces**FATHER JOHN'S**$17.32**4.6★3,761 rev](https://www.amazon.com/dp/B000GG0H92) [4**Father Johns Alcohol Free Cough Medicine 4 Ounces**FATHER JOHN'S**$10.48**4.6★1,797 rev](https://www.amazon.com/dp/B000GG5P3A) [5**Creomulsion Cough Medicine Adult Formula 4 oz (Pack of 2)**Creomulsion**$17.64**4.8★624 rev](https://www.amazon.com/dp/B01IAI2N4E)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Creomulsion Adult Cough Medicine 4 Ounce by Creomulsion**Creomulsion**$9.88**325 rev9y ago](https://www.amazon.com/dp/B01LMPGFL4) [**Creomulsion Cough Medicine Adult Formula 4 oz (Pack of 2)**Creomulsion**$17.64**624 rev10y ago](https://www.amazon.com/dp/B01IAI2N4E) [**Father Johns Alcohol Free Cough Medicine 8 Ounces**FATHER JOHN'S**$17.32**3,761 rev17y ago](https://www.amazon.com/dp/B000GG0H92) [**S.S.S. Tonic High Potency Iron Supplement with B1 B2 B3 Vitamins 20 fl oz Liquid Formula for Energy Vitality & Wellness Easy-to-Take Iron-Rich Made in USA for Women & Men**S.S.S. CO.**$16.70**5,873 rev19y ago](https://www.amazon.com/dp/B000R9MNRC) [**S.S.S. Tonic Iron and Vitamin B Supplement High Potency Vitamins Bottle 10 Fl Oz (Pack of 1)**S.S.S. CO.**$9.92**2,863 rev19y ago](https://www.amazon.com/dp/B08GVPLV4N)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**S.S.S. Tonic High Potency Iron Supplement with B1 B2 B3 Vitamins 20 fl oz Liquid Formula for Energy Vitality & Wellness Easy-to-Take Iron-Rich Made in USA for Women & Men**S.S.S. CO.**$16.70**4.7★**▲ 20%**](https://www.amazon.com/dp/B000R9MNRC) [**S.S.S. Tonic Iron and Vitamin B Supplement High Potency Vitamins Bottle 10 Fl Oz (Pack of 1)**S.S.S. CO.**$9.92**4.7★**▲ 15%**](https://www.amazon.com/dp/B08GVPLV4N) [**Creomulsion Cough Medicine Adult Formula 4 oz (Pack of 2)**Creomulsion**$17.64**4.8★**▼ 13%**](https://www.amazon.com/dp/B01IAI2N4E) [**Father Johns Alcohol Free Cough Medicine 8 Ounces**FATHER JOHN'S**$17.32**4.6★**▼ 28%**](https://www.amazon.com/dp/B000GG0H92) [**Father Johns Cough Medicine Plus 4 Ounces**FATHER JOHN'S**$15.31**4.5★**▼ 32%**](https://www.amazon.com/dp/B000GCL7RC)
**~~View all trending →~~**
## **What buyers say about 666 cold medicine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Iron**13%
*“Avery good iron supplement”*
**Quality-Overall**11%
*“great quality”*
**Cough Relief**10%
*“Great cough syrup”*
**Energy Level**9%
*“Good for energy”*
**Taste-Overall**7%
*“Taste great and easy to use”*
**Advertised Vs Actual Product**6%
*“Works like a charm”*
**Efficiency**6%
*“Ole school meds work”*
**Vitamin**6%
*“Excellent vitamin”*
**Value For Money**5%
*“value for money”*
**Cold Relief**4%
*“I love this bottle it helps with a cold within a few days”*
### **What buyers complain about **
**Taste-Overall**24%
*“The stuff tastes like poison to me”*
**Iron**9%
*“For low iron”*
**Size-Overall**6%
*“Size: Large”*
**Cough Relief**4%
*“This cough syrup didn't even stop my cough even after 4 doses”*
**Bitter**4%
*“It is very bitter”*
**Ingredients-Overall**3%
*“Alchohol, artificial flavors, and sodium benzoate are solid red flags”*
**Vitamin**3%
*“The alcohol and sorbitol are odd choices for a vitamin supplement”*
**Acid Regulator/Stomach Ache Relief**3%
*“I became severely anemic due to a small intestinal bleeding in my small intestine”*
**Dilute/Watery**2%
*“Diluted”*
**Leak-Proof**2%
*“it was difficult to open causing a small spill”*
## **Common questions**
- **Is 666 cold medicine profitable to sell on Amazon United States?**
- The niche generates $443K/yr across 7 tracked products. 90-day search growth is -31.7%. Flapen's verdict: Skip it (38/100).
- **How competitive is the 666 cold medicine niche?**
- 3 brands and 47 sellers compete. The top 5 products take 95% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 666 cold medicine?**
- Top complaints mined from reviews: Taste-Overall, Iron, Size-Overall. The return rate is 0.0%.
- **When does demand for 666 cold medicine peak?**
- Demand peaks in Jan–Feb–Dec; the busiest month runs 4.8× the quietest.
- **What does it cost to enter the 666 cold medicine niche?**
- Listings span $9.88–$17.64; the average listing price is $13.89 (sweet spot $15–$100). The average incumbent carries 2,319 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)