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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 two distinct skincare lines offering targeted preparations for daily routines. Kiehl's is cherished for its thoughtful array of moisturizers, serums, toners, and eye products anchored by nourishing glycerin and squalane, while SEYOUL is loved for its nourishing masks and delicate formulas. The American brand suits skin with dark spots and mature skin best, whereas the other suits dry, oily, and combination skin best. They differ primarily in their core ingredient profiles and the specific complexion concerns they address with quiet precision.

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 broader selection of products on this page across multiple skin types compared to SEYOUL, which features only a single mask. Lovi rates Kiehl's best for skin with dark spots, mature skin, and combination skin.

What is the difference between Kiehl's and SEYOUL?

Kiehl's offers a wide range of products across many skincare categories, whereas SEYOUL features only a single mask on this page. Kiehl's fits best for skin with dark spots, mature skin, and combination skin.

Which is more affordable, Kiehl's or SEYOUL?

Reviewers on this page often mention that Kiehl's has a high price point, but the page provides no pricing or affordability information for SEYOUL.

Which causes fewer breakouts, Kiehl's or SEYOUL?

SEYOUL has only one product on this page, while reviewers note that Kiehl's products frequently cause breakouts and skin irritation. Lovi gives Kiehl's cleansers and toners varying fit levels for acne-prone skin, ranging from Superior to Caution depending on the specific item.

Which brand has been established longer, Kiehl's or SEYOUL?

Kiehl's has been established longer, having been founded in the United States in 1851, whereas SEYOUL was founded in 2022.

How many products from Kiehl's contain fragrance compared to SEYOUL?

Out of the products on this page, 2 of Kiehl's products contain fragrance, whereas SEYOUL has every product on this page listing no fragrance.

Which brand offers a greater variety of products with 'Superior' fit levels for oily skin?

Kiehl's offers a greater variety of products with Superior fit levels for oily skin, including the Calendula Deep Cleansing Foaming Face Wash, Calendula Herbal-Extract Toner, and Ultra Facial Oil-Free Cleanser. In contrast, SEYOUL features no products with a Superior fit level for oily skin on this page.

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

How does it fit your skin?

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