Brandwave

COSRX vs Kiehl's:Which is searched more?

In September 2026, Kiehl's had more branded searches than COSRX among face cleanser brands worldwide. Kiehl's was estimated to have 550K branded searches compared to COSRX’s 402K, and held a 4.1% Share of Search versus COSRX’s 3%. These are worldwide searches for English-language branded terms.

Share of Search among face cleanser brands worldwide in September 2026Which is more popular in search, COSRX or Kiehl's?
COSRX3%402K searches
vs
Kiehl's4.1%550K searches

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Which is more popular in search, COSRX or Kiehl's?

Compare the face cleanser brands people buy. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

COSRX and Kiehl's among face cleanser brands worldwide, by month

Share of Search by month for Kiehl's, COSRX. The figures are in the table below the chart.

View monthly share of search table
MonthCetaphilCeraVeLa Roche-PosayThe OrdinaryBeauty of JoseonGarnierNeutrogenaEucerinBiodermaKiehl'sMedik8COSRXAveenoSKIN1004
Oct 202515.4%17%13.6%9.1%5.9%7.4%7.7%5%4.1%5%2.7%3.1%2.5%1.6%
Nov 202514.4%14.3%13.5%12.7%6.8%5.4%6.1%5%4.1%7.4%3.2%3%2.2%2%
Dec 202514.8%16.2%15.2%10%6.3%6%7.4%4.6%3.7%5.6%2.5%3.5%2.6%1.8%
Jan 202615.8%15.7%14.8%9.7%7.5%5.6%7.1%4.4%4.4%4.4%2.9%3.3%2.5%1.8%
Feb 202615.1%16.6%16.3%8.9%7.1%6.2%7.5%4.9%4%4%2.6%3%2.3%1.6%
Mar 202613.8%14.7%17.2%9.4%7.5%6.4%7.4%5.2%4.2%4.2%2.8%3.1%2.3%1.7%
Apr 202613.6%14.6%17%11%7.9%6.2%7.2%5.1%4.2%3.4%2.7%3.1%2.2%1.6%
May 202612.8%15%17.8%9.4%8.3%6.5%7.5%5.3%4.4%3.6%2.3%3.3%2.1%1.7%
Jun 202613.7%15.7%15.7%10%8.9%7.3%6.9%4.7%3.8%3.8%2.4%2.9%2.3%1.8%
Jul 202614.8%15.9%15.9%10.1%7.4%7.5%6.8%4.8%3.9%3.2%3%2.9%2.4%1.5%
Aug 202614.3%15.7%15.4%9.7%7.2%7.5%8.1%4.6%3.8%3.8%2.9%2.8%2.3%1.8%
Sep 202615.4%14.4%13.8%10.6%7.8%7.3%7%5.1%4.1%4.1%3.2%3%2.5%1.6%

How has the COSRX and Kiehl's comparison changed over the last 12 months?

  • Kiehl's was ahead of COSRX in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, COSRX’s estimated Share of Search among face cleanser brands worldwide moved from 3.1% to 3%, and its estimated monthly branded searches moved from 413K to 402K.
  • Across the 12 months ending September 2026, Kiehl's’ estimated Share of Search among face cleanser brands worldwide moved from 5% to 4.1%, and its estimated monthly branded searches moved from 673K to 550K.

How did search popularity change for face cleanser brands worldwide in September 2026?

  1. Estimated monthly branded searches for Kiehl's worldwide fell 18.3% over 12 measured months, from 673K to 550K in September 2026.

Other head-to-heads among face cleanser brands

How each brand is measured

Brandwave collects information about searches that people make online using COSRX’s and Kiehl's’ names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

COSRX

5 branded search terms

  • cosrx
  • cosrx cleanser
  • cosrx skincare
  • cosrx snail mucin
  • skincare cosrx

Kiehl's

2 branded search terms

  • kiehl s
  • kiehls

How the Brand Demand Index is measured

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