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Kiehl's vs Bayer

Rated by Lovi · Unbiased, science-based skincare AI trained on real user outcomes · How the Fit score works

Kiehl's and Bayer are heritage skincare brands founded in the nineteenth century, with the former originating in America and the latter in Germany. The American brand is loved for its nourishing moisturizers, targeted serums, soothing toners, and revitalizing eye products formulated with glycerin and squalane, while the German brand offers specialized serums. These offerings suit mature skin and combination skin best, alongside specific concerns like acne and dark spots. Ultimately, the brands differ in their product range and key active formulations, as the former relies on moisture-retention and barrier-supporting properties, whereas the latter focuses on targeted cream treatments.

Kiehl's is an American skincare brand founded in 1851 and owned by L'Oréal S.A. since 2000.

loreal.comen.wikipedia.org

Bayer is a German skincare brand founded in 1863 and owned by Bayer AG.

en.wikipedia.orgde.wikipedia.orgforbes.comprnewswire.com

This page compares some of the most popular Kiehl's and Bayer products; for every product of both brands, with a fit score for your own skin, use the Lovi app.

Popular Kiehl's vs Bayer products

Kiehl's vs Bayer serums and treatments

Questions and answers

Kiehl's or Bayer: which is better?

Kiehl's offers a much larger selection of skincare products on this page across multiple categories, whereas Bayer features only a single serum. The products on this page from Kiehl's fit mature skin and combination skin best.

Which is more affordable, Kiehl's or Bayer?

The products on this page do not list prices, so affordability cannot be compared here.

How do the founding years and countries of origin compare between Kiehl's and Bayer?

Kiehl's was founded in 1851 in the United States, whereas Bayer was founded in 1863 in Germany.

What are the main key ingredients used across Kiehl's products?

The main key ingredients across the products on this page for Kiehl's include glycerin, vitamin C, squalane, shea butter, and vitamin E.

Research behind their key ingredients

Behind this comparison

Lovi compares products by their fit scores, calculated from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.

  • Nadia Kapleva, MS

    Nadia Kapleva, MS

    Co-founder, Medical Director

    Cosmetic chemist, cosmetologist, aesthetic products developer

  • Alexey Shagraev, PhD

    Alexey Shagraev, PhD

    Co-founder, CEO and CTO

    PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex

  • Dr. Sofía Perea Pérez, MD, MSc

    Dr. Sofía Perea Pérez, MD, MSc

    Medical Board

    Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine

  • Aishani Shah, MD

    Aishani Shah, MD

    Medical Board

    Specialist dermatologist, MBBS, MD, IFAAD

  • Asya Zubkova, MS

    Asya Zubkova, MS

    Medical Board

    Cosmetic chemist, SCS, IFSCC member

  • Hanna Kurets, MD

    Hanna Kurets, MD

    Medical Board, Medical Advisor

    Dermatology MD

  • Elina Nazarenko, MD

    Elina Nazarenko, MD

    Medical Board

    Dermatology and diagnostic consultant

  • Victoria Derkova, MS

    Victoria Derkova, MS

    Medical Board

    Cosmetic chemist, cosmetic development technologist

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