Castile Soap
FailThe top 5 brands take 97% of clicks, so Castile Soap is a Fail.
- Flapen Score
- 45 / 100Ranks 1,399 of 2,481 Beauty niches · −2 vs the category median of 4745
- Market size
- £194K/yr187K searches / yr
- 90-day growth
- +23.2%search demand this quarter
- Competition
- 81%top-5 click share · 6 brands · 31 sellers
Flapen Score
Castile Soap against its category
The dotted line is the Beauty average. Past it, Castile Soap is stronger. Inside it, weaker.
Market
The Castile Soap market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Castile Soap 187K times last year and spent an estimated £194K. The top 5 brands take 97% of clicks. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 8.2% of those searches ended in a purchase.
Shoppers searched for this 187K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 8.2% of those searches ended in a purchase. Searches in the last 90 days moved +23.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £194K a year.
- Searches, last 12 months
- 187K
- Growth, 90 days vs prior 90
- +23.2%
- Conversion, latest week
- 8.2%
- Market size, estimated
- £194Ka year
- Peak month
- January1.5× the quietest month
- Top search term
- castile soap78K searches a year
02 · Price
A sale here is worth £12.71.
Listings sell for £12.71 on average, from £4.74 to £33.20. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 1,000 to 1,250 of them. At £12.71 that is £13K to £16K a year per listing.
- Average price
- £12.71under the $15 to $100 sweet spot
- Price range
- £4.74–£33.20
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 1,000–1,250
- Revenue per listing a year
- £13K–£16K
- Returns
- 0.0%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
27% of listings pay for placement with sponsored ads. 82% ship with Prime. On an average day, 5.8% of listings are out of stock. The average listing ranks #103 within Bath & Body. It carries 4,611 reviews at 4.57 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 27%
- Prime listings
- 82%
- Out of stock, average day
- 5.8%
- Average rank
- #103in Bath & Body
- Average rating
- 4.57 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 4,611per listing
- Listings tracked
- 11
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 52 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 52 months
Products
Top Castile 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 18, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Castile Liquid Soap Base 1 Litre - Organic SLS SLES Sulphate and Paraben Free
- Price
- £8.03
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago

Freshskin Beauty LTD | 1 Litre Organic Liquid Castile Soap (1000ml) - All-Natural Unscented Liquid Soap - Pure SLS SLES Free - Vegan Friendly - 100% Organic
- Price
- £7.98
- Rating
- 4.6/5
- Reviews
- 484
- Age
- 10y ago

Freshskin Beauty LTD | 100ml Organic Liquid Castile Soap - All-Natural Unscented Liquid Soap - Pure SLS SLES Free - Vegan Friendly - 100% Organic
- Price
- £4.74
- Rating
- 4.6/5
- Reviews
- 484
- Age
- 10y ago

Castile Liquid Soap Base 5 Litre - Organic SLS SLES Sulphate and Paraben Free
- Price
- £24.01
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago

Castile Liquid Soap Base 500ml - Organic SLS SLES Sulphate and Paraben Free
- Price
- £6.63
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago
Trending
estimated 90-day click momentum
Kirks Natural Original Castile Soap 113g (Pack of 3)
- Price
- £8.65
- Rating
- 4.5/5
- Reviews
- 1,258
- Age
- 15y ago

Freshskin Beauty LTD | 100ml Organic Liquid Castile Soap - All-Natural Unscented Liquid Soap - Pure SLS SLES Free - Vegan Friendly - 100% Organic
- Price
- £4.74
- Rating
- 4.6/5
- Reviews
- 484
- Age
- 10y ago

Freshskin Beauty LTD | 1 Litre Organic Liquid Castile Soap (1000ml) - All-Natural Unscented Liquid Soap - Pure SLS SLES Free - Vegan Friendly - 100% Organic
- Price
- £7.98
- Rating
- 4.6/5
- Reviews
- 484
- Age
- 10y ago

Castile Liquid Soap Base 500ml - Organic SLS SLES Sulphate and Paraben Free
- Price
- £6.63
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago

Naissance Organic Liquid Castile Soap (no. 407) - 870ml - Natural Vegan Unscented SLS and SLES Free - for Homemade Beauty Hand Wash Dish Soap
- Price
- £12.35
- Rating
- 4.6/5
- Reviews
- 1,822
- Age
- 12y ago
Newest
by launch date
Castile Liquid Soap Base 1 Litre - Organic SLS SLES Sulphate and Paraben Free
- Price
- £8.03
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago

Castile Liquid Soap Base 5 Litre - Organic SLS SLES Sulphate and Paraben Free
- Price
- £24.01
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago

Castile Liquid Soap Base 500ml - Organic SLS SLES Sulphate and Paraben Free
- Price
- £6.63
- Rating
- 4.6/5
- Reviews
- 3,588
- Age
- 8y ago

Naissance Liquid Castile Soap (No. 407) - 5 Litres - Natural Certified Organic Fragrance Free - Vegan SLS and SLES Free
- Price
- £33.20
- Rating
- 4.6/5
- Reviews
- 1,822
- Age
- 9y ago

Suezbana Liquid Castile Soap Organic 1Kg
- Price
- £14.74
- Rating
- 4.4/5
- Reviews
- 275
- Age
- 10y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 81% of clicks. A locked shelf that new listings rarely crack.
Brands
6 flat
Sellers
31
Est. top-5 brand share
97%
Top 20: 100%
Est. top-5 click share
81%
Top 20: 100%
Open market
0%
- The Soapery53%
- freshskin beauty ltd28%
- Naissance7%
- Dr. Bronner's6%
- Suezbana3%
- Kirk's3%
- Open — no brand owns it (0%)
Demand
Castile Soap search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Castile Soap search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- castile soap78K/yr
- castile liquid soap53K/yr
- the soapery19K/yr
- liquid castile soap7K/yr
- castile soap liquid7K/yr
- castille soap7K/yr
- pure castile soap4K/yr
- castile soap organic6K/yr
- soapery5K/yr
Reviews and returns
What reviews say buyers love and hate about Castile Soap
We read the reviews and the return reasons for every product selling here.
“Do not waste your money”
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.
22 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 Castile 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









