Olaplex No 4 Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Olaplex No 4 sales on Amazon US totaled 415,000 units in July 2026 (▼ 46.0% vs. the prior month), generating an estimated $13,074,660 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 41.0% of unit volume and 38.8% of revenue, while a typical listing is priced at $30.80. The keyword itself pulled 15,608 Amazon queries over the same period (▼ 3.3% MoM).
Zooming out to the 12-month window ending July 2026, the olaplex no 4 Top 50 moved 4,952,500 units and $157,596,698 in cumulative sales — an average of 412,708 units and $13,133,058 per month. Monthly throughput topped out at 768,000 units in June 2026 and dipped to 250,000 in May 2026, leaving the latest reading 18.2% higher than August 2025.
Olaplex No 4 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
415K
▼ 46.0% MoM
Monthly Revenue 2026/07
$13.1M
▼ 47.7% MoM
Top 10 Market Share 2026/07
41.0%
Olaplex No 4 Market Share & Sales Concentration on Amazon US — July 2026
The most-sold olaplex no 4 listing on Amazon US in July 2026 is ASIN B09HR5KSR8 (Brand: K18), which sold 50,000 units at $29.00 apiece — equal to 12.0% of every unit tracked in this report and 2.5× the volume of the No. 2 listing.
The Top 10 ASINs account for 170,000 units and $5,076,200 in July 2026 — 41.0% of unit volume and 38.8% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Olaplex No 4' on Amazon
July 2026
Is 41.0% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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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
B07PW4MTHV
Olaplex N°.6 Bond Smoother™ | Leave-In, Anti-Frizz Styling Cream, 100 mL | 72-Hour Frizz And Humidity Control, 450°F Heat Protection, For All Hair Types And Textures
20K
▼ 60.0%vs. prior month
$640K
latest month
12-month trend
B07VR1NDSQ
Olaplex °7 Bonding Hair Oil | High Shine, 450°F Heat Protectant | 2X More Shine, 72 Hr Frizz Control, Strengthens to Reduce Breakage
20K
▼ 71.4%vs. prior month
$640K
latest month
12-month trend
B0891BBRHW
Pureology Hydrate Conditioner – Moisturizes Dry & Color-Treated Hair
20K
▼ 60.0%vs. prior month
$760K
latest month
12-month trend
B003E1CYHO
Tea Tree Special Shampoo, Deep Cleans, Refreshes Scalp, For All Hair Types, Especially Oily Hair
10K
▲ 0.0%vs. prior month
$200K
latest month
12-month trend
B0098QPV3I
Moroccanoil Hydrating Shampoo
10K
▼ 50.0%vs. prior month
$286.5K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Olaplex No 4 Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Olaplex is the best-performing olaplex no 4 brand in July 2026, moving 60,000 units across 4 ASINs for 35.3% of Top 10 volume. K18 follows with 50,000 units (29.4%), ahead of Pureology on 20,000 units (11.8%).
With 7 brands splitting the Top 10 and 76.5% 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 $29.00 to $38.00, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Olaplex
4 ASINs in Top 10
35.3%
Units
60K
Revenue
$2M
Avg. price
$32.24
B07PW4MTHV
$29.97·★4.7·54.8K revsOlaplex N°.6 Bond Smoother™ | Leave-In, Anti-Frizz Styling Cream, 100 mL | 72-Hour Frizz And Humidity Control, 450°F Heat Protection, For All Hair Types And Textures
Units sold20KB07VR1NDSQ
$32.00·★4.7·61.4K revsOlaplex °7 Bonding Hair Oil | High Shine, 450°F Heat Protectant | 2X More Shine, 72 Hr Frizz Control, Strengthens to Reduce Breakage
Units sold20KB07D37PQGL
$32.99·★4.6·84K revsOlaplex N°.4 Bond Maintenance™ Strengthening Shampoo | Bond Repair | 3X Stronger, 3X Length Retention, For All Hair Types. Color Safe, Sulfate Free
Units sold10KB07D37SBHF
$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
K18
1 ASIN in Top 10
29.4%
Units
50K
Revenue
$1.4M
Avg. price
$29.00
B09HR5KSR8
$29.00·★4.3·31.8K revsK18 Leave-In Molecular Repair Hair Mask
Units sold50K
Pureology
1 ASIN in Top 10
11.8%
Units
20K
Revenue
$760K
Avg. price
$38.00
B0891BBRHW
$38.00·★4.6·18.8K revsPureology Hydrate Conditioner – Moisturizes Dry & Color-Treated Hair
Units sold20K
Trending Olaplex No 4 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: B003E1CYHO booked 10K units at $20.00, with ▲ 0.0% 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.
B003E1CYHO
Tea Tree Special Shampoo, Deep Cleans, Refreshes Scalp, For All Hair Types, Especially Oily Hair
Price
$20.00
Rating
4.6
Reviews
61.5K
Latest month sales
B07LCH8QZ8
Aussie Miracle Moist Shampoo: Hydrating & Gentle Cleansing Treatment with Avocado & Jojoba Oil, 26.2 Fl Oz
Price
$7.97
Rating
4.7
Reviews
4K
Latest month sales
B084C2PC69
OUAI Detox Shampoo - Clarifying Shampoo for Build Up (10 Fl Oz) | Dirt, Oil, Product and Hard Water - Apple Cider Vinegar & Keratin for Clean, Refreshed Hair - Sulfate-Free Hair Care
Unlock to view ASIN details and product titles
Price
$34.00
Rating
4.6
Reviews
7.1K
Latest month sales
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