Cast Iron Soap
FailThe top 5 brands take 100% of clicks, so Cast Iron Soap is a Fail.
- Flapen Score
- 42 / 100Ranks 11,318 of 14,768 Health & Household niches · −7 vs the category median of 4942
- Market size
- $92K/yr22K searches / yr
- 90-day growth
- -12.0%search demand this quarter
- Competition
- 82%top-5 click share · 5 brands · 10 sellers
Flapen Score
Cast Iron Soap against its category
The dotted line is the Health & Household average. Past it, Cast Iron Soap is stronger. Inside it, weaker.
Market
The Cast Iron Soap market on Amazon at a glance
Shoppers on Amazon United States searched for Cast Iron Soap 22K times last year and spent an estimated $92K. All 5 brands take every click. Demand peaks in Jan. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 17.6% of those searches ended in a purchase.
Shoppers searched for this 22K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 17.6% of those searches ended in a purchase. Searches in the last 90 days moved -12.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $92K a year.
- Searches, last 12 months
- 22K
- Growth, 90 days vs prior 90
- -12.0%
- Conversion, latest week
- 17.6%
- Market size, estimated
- $92Ka year
- Peak month
- January1.6× the quietest month
- Top search term
- cast iron soap19K searches a year
02 · Price
A sale here is worth $23.87.
Listings sell for $23.87 on average, from $9.76 to $68.91. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 250 to 500 of them. At $23.87 that is $6K to $12K a year per listing.
- Average price
- $23.87inside the $15 to $100 sweet spot
- Price range
- $9.76–$68.91
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $6K–$12K
- Returns
- 0.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #127 within Dishwashing. It carries 2,304 reviews at 4.62 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #127in Dishwashing
- Average rating
- 4.62 starsAmazon United States average 4.42 stars
- Average reviews
- 2,304per listing
- Listings tracked
- 11
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 75 months on average, so the names here are established.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 75 months
Products
Top Cast Iron Soap products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 21, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
CARON & DOUCET - Cast Iron Cleaning Soap | 100% Plant-Based Soap | Best for Cleaning Restoring Removing Rust and Care Before Seasoning | For Skillets Pans & Cast Iron Cookware (8 oz)
- Price
- $13.17
- Rating
- 4.7/5
- Reviews
- 2,913
- Age
- 10y ago

CARON & DOUCET - Cast Iron Cleaning Soap | 100% Plant-Based Castile & Coconut Oil Soap | Best for Cleaning Restoring Removing Rust and Care Before Seasoning.
- Price
- $19.88
- Rating
- 4.7/5
- Reviews
- 2,913
- Age
- 4y ago

CARON & DOUCET - Cast Iron Cleaning & Conditioning Set: Seasoning Oil & Cleaning Soap | 100% Plant-Based | Best for Washing Restoring & Seasoning Cast Iron Skillets Pans & Grills! 8oz Each
- Price
- $25.05
- Rating
- 4.7/5
- Reviews
- 6,718
- Age
- 10y ago

Culina Quality - Cast Iron Cleaning Soap | 100% Plant-Based Castile & Coconut Oil Soap | Best for Cleaning Restoring Removing Rust and Care Before Seasoning | For Skillets Pans & Cast Iron Cookware
- Price
- $10.75
- Rating
- 4.6/5
- Reviews
- 488
- Age
- 8y ago

CARON & DOUCET New Ultimate Cast Iron Set: Seasoning Oil Cleaning Soap & Restoring Scrub | 100% Plant-Based & Best for Cleaning Care Washing Restoring & Seasoning Skillets Pans & Grills!
- Price
- $33.16
- Rating
- 4.6/5
- Reviews
- 4,073
- Age
- 1y ago
Trending
estimated 90-day click momentum
CARON & DOUCET - Cast Iron Cleaning & Restoring Scrub | 100% Natural | Best for Removing Rust Without Scratching & Care Before Cleaning Washing & Seasoning (1 Pound)
- Price
- $14.59
- Rating
- 4.4/5
- Reviews
- 745
- Age
- 2y ago

Culina Quality - Cast Iron Cleaning Soap | 100% Plant-Based Castile & Coconut Oil Soap | Best for Cleaning Restoring Removing Rust and Care Before Seasoning | For Skillets Pans & Cast Iron Cookware
- Price
- $10.75
- Rating
- 4.6/5
- Reviews
- 488
- Age
- 8y ago

Sylvan Hills Natural Cast Iron Cleaning Soap 16 oz | Essential Oil Blend
- Price
- $17.02
- Rating
- 4.8/5
- Reviews
- 13
- Age
- 8mo ago

Outset Cast Iron Soap 100% Natural Cast Iron Cleaner and Rust Remover 8 Ounces
- Price
- $9.76
- Rating
- 4.4/5
- Reviews
- 59
- Age
- 11mo ago

CARON & DOUCET - Cast Iron Cleaning Soap | 100% Plant-Based Soap | Best for Cleaning Restoring Removing Rust and Care Before Seasoning | For Skillets Pans & Cast Iron Cookware (8 oz)
- Price
- $13.17
- Rating
- 4.7/5
- Reviews
- 2,913
- Age
- 10y ago
Newest
by launch date
Sylvan Hills Natural Cast Iron Cleaning Soap 16 oz | Essential Oil Blend
- Price
- $17.02
- Rating
- 4.8/5
- Reviews
- 13
- Age
- 8mo ago

Outset Cast Iron Soap 100% Natural Cast Iron Cleaner and Rust Remover 8 Ounces
- Price
- $9.76
- Rating
- 4.4/5
- Reviews
- 59
- Age
- 11mo ago

CARON & DOUCET New Ultimate Cast Iron Set: Seasoning Oil Cleaning Soap & Restoring Scrub | 100% Plant-Based & Best for Cleaning Care Washing Restoring & Seasoning Skillets Pans & Grills!
- Price
- $33.16
- Rating
- 4.6/5
- Reviews
- 4,073
- Age
- 1y ago

CARON & DOUCET - Cast Iron Cleaning & Restoring Scrub | 100% Natural | Best for Removing Rust Without Scratching & Care Before Cleaning Washing & Seasoning (1 Pound)
- Price
- $14.59
- Rating
- 4.4/5
- Reviews
- 745
- Age
- 2y ago

CARON & DOUCET - Cast Iron Cleaning Soap | 100% Plant-Based Castile & Coconut Oil Soap | Best for Cleaning Restoring Removing Rust and Care Before Seasoning.
- Price
- $19.88
- Rating
- 4.7/5
- Reviews
- 2,913
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 82% of clicks. A locked shelf that new listings rarely crack.
Brands
5 flat
Sellers
10
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
82%
Top 20: 100%
Open market
0%
- CARON & DOUCET76%
- Culina12%
- Outset6%
- CLARK'S3%
- Sylvan Hills3%
Demand
Cast Iron Soap search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan · busiest ÷ quietest = 1.6×
Reviews and returns
What reviews say buyers love and hate about Cast Iron Soap
We read the reviews and the return reasons for every product selling here.
“Just wish there was more of it for the price”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Cast Iron Soap questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









