Ouai Fine Hair Shampoo Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Ouai Fine Hair Shampoo sales on Amazon US totaled 278,000 units in July 2026 (▼ 47.5% vs. the prior month), generating an estimated $8,770,870 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 42.8% of unit volume and 43.6% of revenue, while a typical listing is priced at $30.77. The keyword itself pulled 18,442 Amazon queries over the same period (▼ 4.2% MoM).
Zooming out to the 12-month window ending July 2026, the ouai fine hair shampoo Top 50 moved 3,630,650 units and $113,452,252 in cumulative sales — an average of 302,554 units and $9,454,354 per month. Monthly throughput topped out at 530,000 units in June 2026 and dipped to 186,000 in May 2026, leaving the latest reading 0.1% higher than August 2025.
Ouai Fine Hair 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
278K
▼ 47.5% MoM
Monthly Revenue 2026/07
$8.8M
▼ 50.0% MoM
Top 10 Market Share 2026/07
42.8%
Ouai Fine Hair Shampoo Market Share & Sales Concentration on Amazon US — July 2026
The most-sold ouai fine hair shampoo listing on Amazon US in July 2026 is ASIN B07N7MWX72 (Brand: Mielle Organics), which sold 20,000 units at $9.94 apiece — equal to 7.2% of every unit tracked in this report.
The Top 10 ASINs account for 119,000 units and $3,828,200 in July 2026 — 42.8% of unit volume and 43.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Ouai Fine Hair Shampoo' on Amazon
July 2026









Is 42.8% Top 10 share highly concentrated?
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Top 5 Volume Share breakdown

B07N7MWX72
Mielle Organics Rosemary Mint Biotin Strengthening Shampoo, 12 oz | Moisturizing shampoo, with biotin & pure rosemary extract, gentle cleanse, damage care, healthier-looking hair
20K
▼ 33.3%vs. prior month
$190.8K
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

B0098QPV3I
Moroccanoil Hydrating Shampoo
10K
▼ 50.0%vs. prior month
$286.5K
latest month
12-month trend

B00FH692PQ
PURA D'OR Original Gold Label Anti-Hair Thinning Biotin Shampoo, 16oz | Fuller-Looking Volume, Clinically Tested, Saw Palmetto, Nettle, Aloe Vera Base, Men & Women, Sulfate-Free, Paraben-Free
10K
▼ 50.0%vs. prior month
$299.9K
latest month
12-month trend

B07D37PQGL
Olaplex N°.4 Bond Maintenance™ Strengthening Shampoo | Bond Repair | For Medium, Thick, or Coarse Hair; Daily Use for Straight, Wavy, Curly, and Coily Hair of All Porosity Levels
10K
▼ 75.0%vs. prior month
$340K
latest month
12-month trend

B07D37SBHF
OLAPLEX N°.5 Bond Maintenance™ Strengthening Conditioner | Repair | For Medium-To-Coarse Hair; Color-Safe, Sulfate-Free Formula For All Hair Types And Textures
10K
▼ 66.7%vs. prior month
$340K
latest month
12-month trend
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Best Ouai Fine Hair Shampoo Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Olaplex is the best-performing ouai fine hair shampoo brand in July 2026, moving 30,000 units across 3 ASINs for 25.2% of Top 10 volume. Mielle Organics follows with 20,000 units (16.8%), ahead of Pureology on 20,000 units (16.8%).
Volume is spread across 8 brands, with the top three holding 58.8% 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 $9.94 to $45.00, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Olaplex
3 ASINs in Top 10
25.2%
Units
30K
Revenue
$1.4M
Avg. price
$45.00

B07D37PQGL
$32.99·★4.6·83.6K revsOlaplex N°.4 Bond Maintenance™ Strengthening Shampoo | Bond Repair | For Medium, Thick, or Coarse Hair; Daily Use for Straight, Wavy, Curly, and Coily Hair of All Porosity Levels
Units sold10K
B07D37SBHF
$34.00·★4.6·85K revsOLAPLEX N°.5 Bond Maintenance™ Strengthening Conditioner | Repair | For Medium-To-Coarse Hair; Color-Safe, Sulfate-Free Formula For All Hair Types And Textures
Units sold10K
B0D4SBLLRJ
$68.00·★4.6·5.9K revsOlaplex Wash & Shine Hair Kit | Shampoo & Conditioner Set, Bonding Oil | 3X Stronger, 3X Length Retention,72HR Frizz Control, Color-Safe, Sulfate-Free Formula For All Hair Types And Textures
Units sold10K
Mielle Organics
1 ASIN in Top 10
16.8%
Units
20K
Revenue
$190.8K
Avg. price
$9.94

B07N7MWX72
$9.94·★4.4·37.1K revsMielle Organics Rosemary Mint Biotin Strengthening Shampoo, 12 oz | Moisturizing shampoo, with biotin & pure rosemary extract, gentle cleanse, damage care, healthier-looking hair
Units sold20K
Pureology
1 ASIN in Top 10
16.8%
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 Ouai Fine Hair 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, one ASIN forced its way in: B08SSCH7YR booked 9K units at $29.00, with ▲ 0.0% MoM change. On the growth side, B0F8JJPFZG leads positive momentum with ▲ 33.3% 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.

B08SSCH7YR
REDKEN Volume Injection Shampoo For Fine Hair - Adds Lift & Body, Volumizing & Detangling Without Weighing Down, Paraben Free
Price
$29.00
Rating
4.5
Reviews
9.2K
Latest month sales

B0F8JJPFZG
OUAI Medium Shampoo & Conditioner Set - Travel Size (3 Oz) | Hydrating Shampoo & Conditioner with Coconut Oil, Babassu, Kumquat Extract & Keratin, Sulfate, Paraben & Phthalate Free
Price
$28.00
Rating
4.2
Reviews
114
Latest month sales
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