Castile Soap Bar Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Castile Soap Bar sales on Amazon US totaled 243,300 units in July 2026 (▼ 4.6% vs. the prior month), generating an estimated $3,494,113 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 55.5% of unit volume and 49.6% of revenue, while a typical listing is priced at $16.63. The keyword itself pulled 22,345 Amazon queries over the same period (▼ 3.2% MoM).
Zooming out to the 12-month window ending July 2026, the castile soap bar Top 50 moved 2,348,800 units and $35,271,469 in cumulative sales — an average of 195,733 units and $2,939,289 per month. Monthly throughput topped out at 255,000 units in June 2026 and dipped to 137,250 in May 2026, leaving the latest reading 28.4% higher than August 2025.
Castile Soap Bar Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
243.3K
▼ 4.6% MoM
Monthly Revenue 2026/07
$3.5M
▼ 9.1% MoM
Top 10 Market Share 2026/07
55.5%
Castile Soap Bar Market Share & Sales Concentration on Amazon US — July 2026
The most-sold castile soap bar listing on Amazon US in July 2026 is ASIN B09MFMCTRK (Brand: VALITIC), which sold 50,000 units at $10.55 apiece — equal to 20.6% of every unit tracked in this report and 5.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 135,000 units and $1,732,210 in July 2026 — 55.5% of unit volume and 49.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Castile Soap Bar' on Amazon
July 2026
Is 55.5% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B09MFMCTRK
VALITIC Kojic Acid Dark Spot Remover Soap Bars, Turmeric Bar Soaps 2 Pack | Original Face and Body Wash Bath Soap for Women and Men with Vitamin C, Retinol, Collagen, Hyaluronic Acid, Shea, Olive Oil
50K
▲ 0.0%vs. prior month
$698.5K
latest month
12-month trend
B0DP37D91R
Mirai Clinical Persimmon Soap for Old People Smell,Nonenal® Odor Eliminator | Japanese Persimmon Soap, Natural Body Odor Soap, Green Tea Extract, Deodorizing Bar for Men, Women, Gentle for All Skin Types
10K
▲ 0.0%vs. prior month
$167.1K
latest month
12-month trend
B000052YLN
Neutrogena Original Transparent Facial Cleansing Bar, 3.5 oz | Fragrance-Free Glycerin Face Wash Bar Soap for Gentle Daily Cleansing, Hypoallergenic & Dye-Free Pure Facial Soap
10K
▲ 0.0%vs. prior month
$29.7K
latest month
12-month trend
B001E0T740
Dr. Bronner's Pure-Castile Magic Bar Soap - Made with Regenerative Organic Certified Oils - For Face, Body, Hair- Gentle on Sensitive Skin - Vegan Soap Bars for Men & Women - Lavender, 2 Pack, 5oz
10K
▲ 0.0%vs. prior month
$99.9K
latest month
12-month trend
B00JF2PYVE
Dr. Bronner's Pure-Castile Bar Soap (Baby Unscented, 5 ounce, 2-pack) - Made with Organic Oils, For Face, Body, Hair, Gentle for Sensitive Skin, Babies, No Added Fragrance, Biodegradable, Vegan
10K
▲ 0.0%vs. prior month
$99.2K
latest month
12-month trend
B08NWK2P1J
Cetaphil Gentle Cleansing Bar Soap, Sensitive & Dry Skin, 4.5oz, 6ct | Fragrance-Free, Dermatologist Recommended, Non-Comedogenic, Nourishes Dry Sensitive Skin, Face And Body, Bulk 6-Pack Value
10K
▼ 50.0%vs. prior month
$171.9K
latest month
12-month trend
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Best Castile Soap Bar Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
VALITIC is the best-performing castile soap bar brand in July 2026, moving 50,000 units across 1 ASIN for 37.0% of Top 10 volume. Dr. Bronner's follows with 20,000 units (14.8%), ahead of Mirai on 10,000 units (7.4%).
Volume is spread across 9 brands, with the top three holding 59.3% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $9.99 to $17.95, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
VALITIC
1 ASIN in Top 10
37.0%
Units
50K
Revenue
$698.5K
Avg. price
$10.55
B09MFMCTRK
$10.55·★4.2·48.2K revsVALITIC Kojic Acid Dark Spot Remover Soap Bars, Turmeric Bar Soaps 2 Pack | Original Face and Body Wash Bath Soap for Women and Men with Vitamin C, Retinol, Collagen, Hyaluronic Acid, Shea, Olive Oil
Units sold50K
Dr. Bronner's
2 ASINs in Top 10
14.8%
Units
20K
Revenue
$199.1K
Avg. price
$9.99
B001E0T740
$9.99·★4.8·6.2K revsDr. Bronner's Pure-Castile Magic Bar Soap - Made with Regenerative Organic Certified Oils - For Face, Body, Hair- Gentle on Sensitive Skin - Vegan Soap Bars for Men & Women - Lavender, 2 Pack, 5oz
Units sold10KB00JF2PYVE
$9.99·★4.8·7.1K revsDr. Bronner's Pure-Castile Bar Soap (Baby Unscented, 5 ounce, 2-pack) - Made with Organic Oils, For Face, Body, Hair, Gentle for Sensitive Skin, Babies, No Added Fragrance, Biodegradable, Vegan
Units sold10K
Mirai
1 ASIN in Top 10
7.4%
Units
10K
Revenue
$167.1K
Avg. price
$17.95
B0DP37D91R
$17.95·★4.3·2.3K revsMirai Clinical Persimmon Soap for Old People Smell,Nonenal® Odor Eliminator | Japanese Persimmon Soap, Natural Body Odor Soap, Green Tea Extract, Deodorizing Bar for Men, Women, Gentle for All Skin Types
Units sold10K
Trending Castile Soap Bar Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B09CGYN74K booked 7K units at $4.96, with ▲ 0.0% MoM change. On the growth side, B0CZDNFP5K leads positive momentum with ▲ 300.0% MoM growth on 4K units, with B00RLUP6M4 close behind at ▲ 250.0% MoM on 7K units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B09CGYN74K
Self Draining Soap Dishes, 3 Pcs Silicone Soap Saver, Waterfall Drainer Soap Holder for Bathroom, Extend Soap Life, Keep Soap Bars Dry Clean & Easy Cleaning (White, Gray, Teal)
Price
$4.96
Rating
4.6
Reviews
9.1K
Latest month sales
B0CZDNFP5K
Yoken Pure Castile Liquid Soap 33.8 Oz Unscent add Organic Oil EWG Verified | No Fragrance Vegan Natural Laundry Dishes Mild Sensitive Skin Travel Camp Soaps Body Bath Hand Wash Free 1000 ML
Price
$9.99
Rating
4.6
Reviews
3.9K
Latest month sales
B00RLUP6M4
Kirk's Fragrance Free Castile Bar Soap (Pack of 3)
Unlock to view ASIN details and product titles
Price
$9.77
Rating
4.7
Reviews
8.8K
Latest month sales
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