Best Selling K18 Treatment: See Top Product Rankings by Sales Volume & Market Trends

July 2026
118 Products Tracked

Looking for the most popular k18 treatment products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "k18 treatment." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B07PW4MTHV currently leads the k18 treatment market with 50K monthly sales, followed closely by B0DB6CDLSM with 50K monthly sales and B09HR5KSR8 with 40K monthly sales. Meanwhile, ASIN B09HR5KSR8 stands out as the fastest-growing product, achieving an impressive 100.0% month-over-month sales growth. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales July 2026
Olaplex Nº. 6 Bond Smoother: Leave-In Styling Treatment | Smooths, Conditions, & Strengthens | Frizz Control for Up to 72 Hours
1
B07PW4MTHV
$32.00·
4.7
Units/sold50K
Dove Hair Intensive Repair 10in1 Serum Mask for Damaged Hair with Bio-Protein Care Technology and Amino Serum 9.2 fl oz
2
B0DB6CDLSM
$9.97·
4.6
Units/sold50K
K18 Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat
3
B09HR5KSR8
$29.00·
4.3
Units/sold40K
🚀Fastest Growing
by MoM sales growth
K18 Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat
#1
B09HR5KSR8
$29.00·
4.3
K18 Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat
Units/sold
40K100.0%
PRAVANA Intense Therapy Leave-In Conditioner Spray Treatment & Detangler | Instantly Detangles & Hydrates | Equalizes Hair Porosity | For All Hair Types | Strengthens & Softens Hair
#2
B00GXE5ASY
$21.99·
4.6
PRAVANA Intense Therapy Leave-In Conditioner Spray Treatment & Detangler | Instantly Detangles & Hydrates | Equalizes Hair Porosity | For All Hair Types | Strengthens & Softens Hair
Units/sold
20K100.0%

Top Selling K18 Treatment

As of July 2026, we analyzed 118 tracked products in Amazon's "k18 treatment" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 20,000 and 50,000 monthly sales. B07PW4MTHV leads the k18 treatment market with an estimated 50,000 monthly sales, up 4.0% from the previous month.

118Products Tracked
29,000Top 10 Avg. Sales
$28.98Top 10 Avg. Price
4.5Top 10 Avg. Rating
🏆
Olaplex Nº. 6 Bond Smoother: Leave-In Styling Treatment | Smooths, Conditions, & Strengthens | Frizz Control for Up to 72 Hours
#1
B07PW4MTHV

Olaplex Nº. 6 Bond Smoother: Leave-In Styling Treatment | Smooths, Conditions, & Strengthens | Frizz Control for Up to 72 Hours

50,000
▲ 4.0%
Units Sold/mo
$32.00
Price
4.7
Rating
54.4K
Reviews
2
Dove Hair Intensive Repair 10in1 Serum Mask for Damaged Hair with Bio-Protein Care Technology and Amino Serum 9.2 fl oz
B0DB6CDLSM
$9.97
4.6 (3.8K)
Dove Hair Intensive Repair 10in1 Serum Mask for Damaged Hair with Bio-Protein Care Technology and Amino Serum 9.2 fl oz
50,000 Units Sold/mo▲ 4.0%
3
K18 Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat
B09HR5KSR8
$29.00
4.3 (30.2K)
K18 Leave-In Molecular Repair Hair Mask, Patented, Lasting Repair For Dry, Frizzy, Damaged Hair, Reverse Damage In 4 Minutes From Bleach, Color, Chemical Services + Heat
40,000 Units Sold/mo▲ 100.0%
4
Olaplex N°.3PLUS Complete Repair Treatment: 3-minute Pre-shampoo Treatment to Immediately Repair Hair Damage for Softer, Stronger Hair | For Coily, Curly, Straight, and Wavy, 100 mL / 3.3 Fl Oz
B0GHSXYY3Z
$34.00
4.4 (584)
Olaplex N°.3PLUS Complete Repair Treatment: 3-minute Pre-shampoo Treatment to Immediately Repair Hair Damage for Softer, Stronger Hair | For Coily, Curly, Straight, and Wavy, 100 mL / 3.3 Fl Oz
30,000 Units Sold/mo▲ 2.3%
5
PRAVANA Intense Therapy Leave-In Conditioner Spray Treatment & Detangler | Instantly Detangles & Hydrates | Equalizes Hair Porosity | For All Hair Types | Strengthens & Softens Hair
B00GXE5ASY
$21.99
4.6 (9.1K)
PRAVANA Intense Therapy Leave-In Conditioner Spray Treatment & Detangler | Instantly Detangles & Hydrates | Equalizes Hair Porosity | For All Hair Types | Strengthens & Softens Hair
20,000 Units Sold/mo▲ 100.0%
10
MAREE Deep Conditioning Hair Mask for Damaged Hair Treatment – Keratin Hair Care for Hydrating Growth Repair Moisturizing – Dry Curly Color Refreshing – 10 Fl Oz, White
B0CFG7FKWN
$24.95
4.4 (10.6K)
MAREE Deep Conditioning Hair Mask for Damaged Hair Treatment – Keratin Hair Care for Hydrating Growth Repair Moisturizing – Dry Curly Color Refreshing – 10 Fl Oz, White
20,000 Units Sold/mo▲ 100.0%
View All 118 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the k18 treatment price landscape, we segmented all 118 tracked listings in Amazon's live "k18 treatment" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $20.00 ~ $50.00 band is the category's best k18 treatment price zone, absorbing 52% of the assortment (185 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the k18 treatment category.

Top 3 Price Tiers

$20.00 ~ $50.00 is the most competitive price tier, containing 52% of tracked products.

Sweet Spot
$20.00 ~ $50.00
Tier 1
52%
185 products

Top products in this price tier

#1
B07PW4MTHV
$32.00
50k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
19%
66 products
$50.00 ~ $100.00
Tier 3
13%
46 products
$0.00 ~ $10.00
12%
Unlock to view all price tier distributions and their ASIN sales contributions

"K18 treatment" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "k18 treatment" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-06-21 to 2026-06-27, the Amazon USweekly search volume for "k18 treatment" was approximately 172 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #1,015,163, climbing 126,242 positions from the previous week. Additionally, the top 3 products for this keyword capture 81.8% of the total click share and 80% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

k18 treatment

ASINSIGHT
Search Frequency Rank
1,015,163
126,242
Search Volume
172
13.9%
Top 3 Click Share
81.8%
Top 3 Conv. Share
80%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
172
View full trends for the past 3 years
JunJulAugSepOctNovDecJanFebMarAprMayJun
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