K18 Hair Mask Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
K18 Hair Mask sales on Amazon US totaled 452,000 units in July 2026 (▼ 35.9% vs. the prior month), generating an estimated $11,941,600 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 50.9% of unit volume and 45.2% of revenue, while a typical listing is priced at $29.44. The keyword itself pulled 25,624 Amazon queries over the same period (▲ 6.9% MoM).
Zooming out to the 12-month window ending July 2026, the k18 hair mask Top 50 moved 5,135,950 units and $135,048,110 in cumulative sales — an average of 427,996 units and $11,254,009 per month. Monthly throughput topped out at 704,600 units in June 2026 and dipped to 242,000 in May 2026, leaving the latest reading 13.6% higher than August 2025.
K18 Hair Mask 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
452K
▼ 35.9% MoM
Monthly Revenue 2026/07
$11.9M
▼ 40.9% MoM
Top 10 Market Share 2026/07
50.9%
K18 Hair Mask Market Share & Sales Concentration on Amazon US — July 2026
The most-sold k18 hair mask listing on Amazon US in July 2026 is ASIN B09HR5KSR8 (Brand: K18), which sold 50,000 units at $29.00 apiece — equal to 11.1% of every unit tracked in this report and 1.7× the volume of the No. 2 listing.
The Top 10 ASINs account for 230,000 units and $5,400,800 in July 2026 — 50.9% of unit volume and 45.2% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'K18 Hair Mask' on Amazon
July 2026
Is 50.9% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown
B09HR5KSR8
K18 Leave-In Molecular Repair Hair Mask
50K
▲ 25.0%vs. prior month
$1.4M
latest month
12-month trend
B01I2ZQJSG
Elizavecca cer-100 collagen coating hair protein treatment 100ml
30K
▲ 200.0%vs. prior month
$203.1K
latest month
12-month trend
B073CWSQ51
COLOR WOW Dream Coat – Anti-Humidity Frizz Control Spray for Glass Hair | Anti-frizz treatment and humidity-proofing spray delivers glassy-smooth, frizz-free hair. Heat activated, lasts 3-4 shampoos.
30K
▼ 70.0%vs. prior month
$888K
latest month
12-month trend
B00I32AN4K
Arvazallia Hydrating Argan Oil Hair Mask & Deep Conditioner For Dry Hair | Repairs, Moisturizes, Detangles Damaged or Dry hair Leaving it Soft, Silky, and Easier to Manage. Sulfate Free 8.45oz Jar
20K
▲ 0.0%vs. prior month
$299.8K
latest month
12-month trend
B075L6BL61
Karseell Collagen Hair Mask for Dry, Frizzy, Damaged Hair 16.90 oz | Deep Conditioning Hair Treatment Repairs, Moisturizes, Nourishing, Detangles Hair Leaving it Soft, Silky
20K
▲ 0.0%vs. prior month
$470.8K
latest month
12-month trend
B07PW4MTHV
Nº. 6 Bond Smoother: Leave-in Styling Treatment | Smooths, Conditions, & Strengthens
20K
▼ 60.0%vs. prior month
$640K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best K18 Hair Mask Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
K18 is the best-performing k18 hair mask brand in July 2026, moving 50,000 units across 1 ASIN for 21.7% of Top 10 volume. Elizavecca follows with 30,000 units (13.0%), ahead of COLOR WOW on 30,000 units (13.0%).
Volume is spread across 10 brands, with the top three holding 47.8% 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 $6.99 to $29.00, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
K18
1 ASIN in Top 10
21.7%
Units
50K
Revenue
$1.4M
Avg. price
$29.00
B09HR5KSR8
$29.00·★4.3·31.7K revsK18 Leave-In Molecular Repair Hair Mask
Units sold50K
Elizavecca
1 ASIN in Top 10
13.0%
Units
30K
Revenue
$203.1K
Avg. price
$6.99
B01I2ZQJSG
$6.99·★4.4·64.4K revsElizavecca cer-100 collagen coating hair protein treatment 100ml
Units sold30K
COLOR WOW
1 ASIN in Top 10
13.0%
Units
30K
Revenue
$888K
Avg. price
$25.00
B073CWSQ51
$25.00·★4.3·110.8K revsCOLOR WOW Dream Coat – Anti-Humidity Frizz Control Spray for Glass Hair | Anti-frizz treatment and humidity-proofing spray delivers glassy-smooth, frizz-free hair. Heat activated, lasts 3-4 shampoos.
Units sold30K
Trending K18 Hair Mask 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, 2 ASINs forced its way in: B01I2ZQJSG booked 30K units at $6.99, with ▲ 200.0% MoM change. On the growth side, B0GXXCY7Q5 leads positive momentum with ▲ 566.7% MoM growth on 4K 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.
B01I2ZQJSG
Elizavecca cer-100 collagen coating hair protein treatment 100ml
Price
$6.99
Rating
4.4
Reviews
64.4K
Latest month sales
B07NSZHMWD
Shea Moisture Intensive Hydration Hair Masque Manuka Honey & Mafura Oil For Dry, Damaged Hair Deep Conditioning Hair Treatment 11.5 oz
Price
$11.69
Rating
4.6
Reviews
21.4K
Latest month sales
B0GXXCY7Q5
Fino Premium Touch Hair Mask, Deep Repair Japanese Hair Treatment, 8.1 oz | 8 Serum Ingredients, For Dry & Damaged Hair, Silky-Smooth & Hydrated Finish
Unlock to view ASIN details and product titles
Price
$14.98
Rating
4.3
Reviews
106
Latest month sales
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