666 cold medicine
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great7.5%search→purchase rate — share of searches ending in a sale
Avg price
Good$13.89avg listing price — sweet spot $15–$100
Market size
Good$443K$443K/yr · 425K searches
Review moat
Okay2,318.86avg incumbent reviews — the moat a new listing must climb
Price range
Okay$9.88–$17.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-31.7%90-day search growth — must beat 0% to launch
Competition
Bad95%top-5 click share — a locked-up shelf
Brand share
Bad100%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
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.Peak months: Jan, Feb, Dec · busiest ÷ quietest = 4.8×
Top 666 cold medicine search terms
- sss87K/yr
- sss tonic78K/yr
- sss tonic high potency iron liquid56K/yr
- 666 cold medicine49K/yr
- father johns cough medicine66K/yr
- creomulsion cough syrup for adults14K/yr
- father john10K/yr
- ss tonic6K/yr
- father john medicine6K/yr
- creomulsion7K/yr
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.
All 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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.$16.704.7★5,873 rev
S.S.S. Tonic Iron and Vitamin B Supplement High Potency Vitamins Bottle 10 Fl Oz (Pack of 1)
S.S.S. CO.$9.924.7★2,863 rev
Father Johns Alcohol Free Cough Medicine 8 Ounces
FATHER JOHN'S$17.324.6★3,761 rev
Father Johns Alcohol Free Cough Medicine 4 Ounces
FATHER JOHN'S$10.484.6★1,797 rev
Creomulsion Cough Medicine Adult Formula 4 oz (Pack of 2)
Creomulsion$17.644.8★624 rev
Newest
by launch date
Creomulsion Adult Cough Medicine 4 Ounce by Creomulsion
Creomulsion$9.88325 rev
Creomulsion Cough Medicine Adult Formula 4 oz (Pack of 2)
Creomulsion$17.64624 rev
Father Johns Alcohol Free Cough Medicine 8 Ounces
FATHER JOHN'S$17.323,761 rev
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.$16.705,873 rev
S.S.S. Tonic Iron and Vitamin B Supplement High Potency Vitamins Bottle 10 Fl Oz (Pack of 1)
S.S.S. CO.$9.922,863 rev
Trending
90-day click momentumS.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.$16.704.7★
S.S.S. Tonic Iron and Vitamin B Supplement High Potency Vitamins Bottle 10 Fl Oz (Pack of 1)
S.S.S. CO.$9.924.7★
Creomulsion Cough Medicine Adult Formula 4 oz (Pack of 2)
Creomulsion$17.644.8★
Father Johns Alcohol Free Cough Medicine 8 Ounces
FATHER JOHN'S$17.324.6★
Father Johns Cough Medicine Plus 4 Ounces
FATHER JOHN'S$15.314.5★
What buyers say about 666 cold medicine
What buyers praise and complain about, mined from review topics.What buyers love
“Avery good iron supplement”
“great quality”
“Great cough syrup”
“Good for energy”
“Taste great and easy to use”
“Works like a charm”
“Ole school meds work”
“Excellent vitamin”
“value for money”
“I love this bottle it helps with a cold within a few days”
What buyers complain about
“The stuff tastes like poison to me”
“For low iron”
“Size: Large”
“This cough syrup didn't even stop my cough even after 4 doses”
“It is very bitter”
“Alchohol, artificial flavors, and sodium benzoate are solid red flags”
“The alcohol and sorbitol are odd choices for a vitamin supplement”
“I became severely anemic due to a small intestinal bleeding in my small intestine”
“Diluted”
“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.