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Kiehl's vs SEYOUL

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

Kiehl's and SEYOUL are notable skincare lines that offer distinct approaches to daily care. Kiehl's is celebrated for moisturizers, serums, toners, and eye products featuring glycerin and squalane, while SEYOUL is loved for nourishing masks and delicate formulas. The American brand suits dry and sensitive skin best through hydrating and barrier-restoring preparations, whereas the latter accommodates dry, oily, and combination skin with thoughtful treatments like the Collagen Night Wrapping Mask. Ultimately, they differ through the former's reliance on clinically backed botanicals for targeted concerns and the latter's focus on gentle, overnight enveloping care.

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

loreal.comen.wikipedia.org

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

Popular Kiehl's vs SEYOUL products

Questions and answers

Kiehl's or SEYOUL: which is better?

Kiehl's offers a much larger and more versatile lineup of products on this page compared to SEYOUL, which features only a single mask. The products on this page from Kiehl's help provide targeted solutions for dry, sensitive, and mature skin.

What is the difference between Kiehl's and SEYOUL?

Kiehl's offers a wide range of skincare products on this page tailored for various skin types and concerns, whereas SEYOUL only features a single mask.

Which is more affordable, Kiehl's or SEYOUL?

Reviewers on this page often mention that Kiehl's has a high price point, while pricing information for SEYOUL is not discussed. Reviewers also frequently note that Kiehl's products can cause breakouts and skin irritation.

Which causes fewer breakouts, Kiehl's or SEYOUL?

Reviewers frequently note that Kiehl's products on this page may cause breakouts and skin irritation. SEYOUL lists only one product on this page, which is rated as a Caution for acne-prone skin.

When were Kiehl's and SEYOUL founded, and who owns each company?

Kiehl's was founded in 1851 in the United States and has been owned by L'Oréal S.A. since 2000. SEYOUL was founded in 2022 and is owned by Thành Vinh Holdings.

How do Kiehl's and SEYOUL compare in terms of fragrance-free product options?

Kiehl's offers 26 fragrance-free products alongside 2 options containing fragrance out of the 28 products on this page, while SEYOUL features fragrance-free options across every product on this page.

Which Kiehl's products achieve a Superior Lovi fit level for oily skin and acne-prone skin?

For oily skin, the products on this page that achieve a Superior Lovi fit level are Calendula Deep Cleansing Foaming Face Wash, Calendula Herbal-Extract Toner, and Rare Earth Deep Pore Daily Cleanser. For acne-prone skin, Calendula Herbal-Extract Toner is the only product on this page that achieves a Superior Lovi fit level.

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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