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Castile Soap

brand-locked demand (top 5 brands take 97% of clicks) — Castile Soap doesn't clear our bar today.

Flapen Score

45
Skip it

Ranks 1,399 of 2,481 Beauty niches · −2 vs the category median of 47

Market size 38Growth 52Conversion 80Competition 16Returns 100Price range 64Avg price 56Brand share 7Review moat 25Quality gap 30
This niche Category average · 2,481 niches

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

Units sold / yr15K
Search volume / yr+23.2%187K
Conversion rate8.2%
Avg price£12.71

Who owns the niche?

The top 5 brands hold 97% of demand, so 3% of the market is open.

3%

open market share

Brands · sellers6 · 31
Top-5 product click share81%
Open market3%
Avg brand age52 months

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

Sponsored placement27%
New entrants (1y)0· 0 succeeded
Avg rating4.6★
Avg reviews4,611

Top Castile Soap products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

£0£19K£39K£58K£78K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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.

Volume187KCVR8.2%Products11Brands6Top 5 Brands97%OOS Rate5.8%Rating4.6★Reviews4,611Avg BSR#103
6K4KHoliday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

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
Quality-Overall28%

Excellent soap

Value For Money18%

Money saving

Advertised Vs Actual Product11%

The product works as it is advertise

Ease Of Cleaning6%

Great, ready to make my own cleaning products

Lather4%

has a good lather

What buyers complain about

92% of reviews
Value For Money17%

Do not waste your money

Skin Health13%

My skin hasnt felt so good

Advertised Vs Actual Product13%

I feel like that's silly to advertise that way

Quality-Overall13%

Poor quality and price is high

Hair Related13%

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.

1Size-Overall
25%
2Leak-Proof
16%
3Functionality-Overall
13%
4Moist/Dry
9%
5Ingredients-Overall
9%

Common Castile Soap questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Castile Soap 45/100 on Amazon United Kingdom — Skip it. The niche generates £194K/yr across 11 tracked products. Search demand moved +23.2% over the last 90 days.
Search demand for Castile Soap on Amazon United Kingdom is steady year-round — the busiest month runs 1.5× the quietest.