Castile Soap
brand-locked demand (top 5 brands take 97% of clicks) — Castile Soap doesn't clear our bar today.
Flapen Score
Ranks 1,399 of 2,481 Beauty niches · −2 vs the category median of 47
Is Castile Soap profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Castile Soap is a £194K/yr Amazon United Kingdom market (187K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 45/100.
Castile Soap: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved +23.2% over the last 90 days and 8.2% of searches end in a purchase.
£194K
revenue / yr
Who owns the niche?
The top 5 brands hold 97% of demand, so 3% of the market is open.
3%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.
0/100
page quality · 11 products
Top Castile Soap products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 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
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: brands, sellers & click share
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
Brands
6 flat
Sellers
31
Top-5 brand share
97%
Top 20: 100%
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%)
Castile Soap demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.5×
Top Castile Soap search terms shoppers use
The exact queries shoppers type, with 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
What reviews say buyers love and hate about Castile Soap
What buyers mention most, as a share of all reviews.
What buyers love
85% of reviews“Excellent soap”
“Money saving”
“The product works as it is advertise”
“Great, ready to make my own cleaning products”
“has a good lather”
What buyers complain about
92% of reviews“Do not waste your money”
“My skin hasnt felt so good”
“I feel like that's silly to advertise that way”
“Poor quality and price is high”
“after a few uses i noticed a lot of hair in my hairbrush”
Castile Soap return rate & reasons
Why buyers send it back, as a share of all return requests.
0.0%
Return rate
41%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Castile Soap questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









