K18 Shampoo Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
K18 Shampoo sales on Amazon US totaled 579,000 units in July 2026 (▼ 29.8% vs. the prior month), generating an estimated $16,655,380 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 51.8% of unit volume and 43.0% of revenue, while a typical listing is priced at $31.87. The keyword itself pulled 20,548 Amazon queries over the same period (▲ 6.2% MoM).
Zooming out to the 12-month window ending July 2026, the k18 shampoo Top 50 moved 6,673,200 units and $194,247,778 in cumulative sales — an average of 556,100 units and $16,187,315 per month. Monthly throughput topped out at 825,000 units in June 2026 and dipped to 372,200 in May 2026, leaving the latest reading 14.0% higher than August 2025.
K18 Shampoo 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
579K
▼ 29.8% MoM
Monthly Revenue 2026/07
$16.7M
▼ 36.1% MoM
Top 10 Market Share 2026/07
51.8%
K18 Shampoo Market Share & Sales Concentration on Amazon US — July 2026
The most-sold k18 shampoo listing on Amazon US in July 2026 is ASIN B00AINMFAC (Brand: Nizoral), which sold 100,000 units at $16.88 apiece — equal to 17.3% of every unit tracked in this report and 2.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 300,000 units and $7,168,900 in July 2026 — 51.8% of unit volume and 43.0% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'K18 Shampoo' on Amazon
July 2026
Is 51.8% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
Powered by ASINSIGHT MCP · Grounded in ASINSIGHT Amazon data
Top 5 Volume Share breakdown
B00AINMFAC
Nizoral Anti-Dandruff Shampoo with 1% Ketoconazole, Fresh Scent, 7 Fl Oz | Anti-Fungal Shampoo, Dandruff Shampoo for Dandruff Relief, Ketoconazole Shampoo, Dandruff Treatment, 1% Ketoconazole
100K
▲ 0.0%vs. prior month
$1.6M
latest month
12-month trend
B09HR5KSR8
K18 Leave-In Molecular Repair Hair Mask
50K
▲ 25.0%vs. prior month
$1.4M
latest month
12-month trend
B0BP8BXZ8M
Nizoral Anti-Dandruff Shampoo with 1% Ketoconazole, Fresh Scent, 14 Fl Oz | Anti-Fungal Shampoo, Dandruff Shampoo for Dandruff Relief, Ketoconazole Shampoo, Dandruff Treatment, 1% Ketoconazole
50K
▲ 25.0%vs. prior month
$1.4M
latest month
12-month trend
B0891843GC
Pureology Hydrate Shampoo – Moisturizes & Nourishes Dry Hair, Sulfate-Free
20K
▼ 66.7%vs. prior month
$760K
latest month
12-month trend
B09GV3RGW2
Pantene Shampoo & Conditioner Set, Daily Moisture Renewal - Pro-V Nutrients for Dry, Color-Treated, Straight to Curly Hair, 72-Hour Hydration & Softness, 52.8 Oz Total + Miracle Rescue Shot (0.5 Oz)
20K
▼ 33.3%vs. prior month
$436K
latest month
12-month trend
B0F67KS3K1
K18 AirWash™ Dry Shampoo, Non-Aerosol, Balances Scalp & Controls Excess Oil Production
20K
▲ 100.0%vs. prior month
$480K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best K18 Shampoo Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Nizoral is the best-performing k18 shampoo brand in July 2026, moving 150,000 units across 2 ASINs for 50.0% of Top 10 volume. K18 follows with 70,000 units (23.3%), ahead of Pureology on 20,000 units (6.7%).
With 8 brands splitting the Top 10 and 80.0% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $23.17 to $38.00, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Nizoral
2 ASINs in Top 10
50.0%
Units
150K
Revenue
$3M
Avg. price
$23.17
B00AINMFAC
$16.88·★4.6·112.3K revsNizoral Anti-Dandruff Shampoo with 1% Ketoconazole, Fresh Scent, 7 Fl Oz | Anti-Fungal Shampoo, Dandruff Shampoo for Dandruff Relief, Ketoconazole Shampoo, Dandruff Treatment, 1% Ketoconazole
Units sold100KB0BP8BXZ8M
$29.47·★4.7·9K revsNizoral Anti-Dandruff Shampoo with 1% Ketoconazole, Fresh Scent, 14 Fl Oz | Anti-Fungal Shampoo, Dandruff Shampoo for Dandruff Relief, Ketoconazole Shampoo, Dandruff Treatment, 1% Ketoconazole
Units sold50K
K18
2 ASINs in Top 10
23.3%
Units
70K
Revenue
$1.9M
Avg. price
$26.50
B09HR5KSR8
$29.00·★4.3·31.7K revsK18 Leave-In Molecular Repair Hair Mask
Units sold50KB0F67KS3K1
$24.00·★4.4·2.1K revsK18 AirWash™ Dry Shampoo, Non-Aerosol, Balances Scalp & Controls Excess Oil Production
Units sold20K
Pureology
1 ASIN in Top 10
6.7%
Units
20K
Revenue
$760K
Avg. price
$38.00
B0891843GC
$38.00·★4.6·19.3K revsPureology Hydrate Shampoo – Moisturizes & Nourishes Dry Hair, Sulfate-Free
Units sold20K
Trending K18 Shampoo 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, 3 ASINs forced its way in: B0F67KS3K1 booked 20K units at $24.00, with ▲ 100.0% MoM change.
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.
B0F67KS3K1
K18 AirWash™ Dry Shampoo, Non-Aerosol, Balances Scalp & Controls Excess Oil Production
Price
$24.00
Rating
4.4
Reviews
2.1K
Latest month sales
B003E1CYHO
Tea Tree Special Shampoo, Deep Cleans, Refreshes Scalp, For All Hair Types, Especially Oily Hair
Price
$20.00
Rating
4.6
Reviews
61.4K
Latest month sales
B0098QPV3I
Moroccanoil Hydrating Shampoo
Unlock to view ASIN details and product titles
Price
$30.00
Rating
4.6
Reviews
28.2K
Latest month sales
One Amazon dataset. Two ways to use it.
Every number in this k18 shampoo report comes from the Amazon market data ASINSIGHT tracks. Pick how you want to work with it.
Explore the full data
Browse the complete, structured picture in a ready-made interface — and keep tracking it as the market moves.
- Organic vs. ad traffic shifts per product
- Hourly rank and search-volume tracking
- Competitor ASINs and historical trends
Starts with a free ASINSIGHT account
Analyze the data your way
Connect the same data to ChatGPT, Claude or Cursor, then combine any dimensions to answer your own questions.
- Combine product, keyword, sales & ranking data freely
- Follow up in your own words, no fixed reports
- Works in ChatGPT, Claude & Cursor
20,000 credits/mo free, no credit card