🇮🇹Italy

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 respected skincare lines offering nourishing moisturizers, targeted serums, soothing toners, gentle eye products, and nourishing masks. The American brand, founded in 1851 and owned by L'Oréal S.A. since 2000, relies on dependable ingredients like glycerin and squalane, while SEYOUL uses delicate formulas and thoughtful preparations. Kiehl's suits mature skin and sensitive skin best, whereas the other brand suits dry, oily, and combination skin best. Ultimately, they differ through their distinct formulations, with the former featuring glycerin and squalane for barrier support and hydration.

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 across various skin types on the products on this page compared to SEYOUL, which features only a single mask. Reviewers often note that Kiehl's provides deep hydration and lightweight moisturizers.

What is the difference between Kiehl's and SEYOUL?

Kiehl's offers a wide variety of skincare ranges that Lovi rates best for mature and sensitive skin as well as skin with dark spots, whereas SEYOUL features only a single product on this page with lower fit levels for those skin types. Kiehl's uses fragrance in only two of its products, while SEYOUL lists no fragrance in its ingredients.

Which is more affordable, Kiehl's or SEYOUL?

Reviewers on this page often mention high prices for Kiehl's, while SEYOUL products on this page have no pricing feedback available.

Which causes fewer breakouts, Kiehl's or SEYOUL?

SEYOUL has only one product on this page, whereas Kiehl's features numerous items with varying fit levels for acne-prone skin, including some products where Lovi rates the fit as a Caution or Warning. Reviewers note that Kiehl's can sometimes cause breakouts and skin irritation.

How do the founding years and corporate ownerships of Kiehl's and SEYOUL compare?

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

Which of the two brands offers a wider variety of skincare products on this page?

Kiehl's offers a much wider variety of skincare products on this page, featuring dozens of items across categories like cleansers, toners, serums, and moisturizers.

How does the fragrance content differ between Kiehl's and SEYOUL products?

Kiehl's features 26 fragrance-free products alongside two items containing fragrance, while SEYOUL lists no fragrance in any of the products 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?

Scan your face, then any product: Lovi shows how well it fits you and what fits even better.

QR code: get the Lovi app
Download on theApp Store Get it onGoogle Play