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Some By Mi vs Principia

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

Some By Mi and Principia are two distinct skincare lines known for thoughtful cleansers and precise formulas. The Korean brand features serums, cleansers, toners, and moisturizers built around niacinamide, centella asiatica, and salicylic acid, while the latter offers targeted options like the Gel de Limpeza GL-01. Both brands suit different complexions, with the former fitting dry sensitive skin best and the latter suiting balanced to oily skin. They ultimately differ in their key ingredient focus and regional origins, helping maintain a healthy, balanced complexion depending on individual needs.

Some By Mi is a Korean skincare brand founded in 2016 and owned by JKL Partners since 2021.

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This page compares some of the most popular Some By Mi and Principia products; for every product of both brands, with a fit score for your own skin, use the Lovi app.

Popular Some By Mi vs Principia products

Questions and answers

Some By Mi or Principia: which is better?

Some By Mi provides a much wider selection of skincare products on this page than Principia, with options featuring ingredients like niacinamide that helps reduce pigmentation.

The British Journal of Dermatology, 2002

What is the difference between Some By Mi and Principia?

Some By Mi offers a wide variety of skincare products on this page tailored best for dry and sensitive skin, whereas Principia features only a single cleanser.

Some By Mi or Principia: which cleanser is better?

When comparing cleansers, the Snail Truecica Miracle Repair Low pH Gel Cleanser from Some By Mi achieves a Superior Lovi fit level for acne-prone skin, while Principia's Gel de Limpeza GL-01 has a Low fit level for the same skin type.

Which is more affordable, Some By Mi or Principia?

The provided page does not contain pricing information to determine whether Some By Mi or Principia is more affordable.

Which causes fewer breakouts, Some By Mi or Principia?

Some By Mi helps clear breakouts with products like the AHA-BHA-PHA 30 Days Miracle Toner, which achieves a Superior fit level for acne-prone skin, whereas Principia features only a cleanser on this page and lacks dedicated acne-clearing treatments.

Between Some By Mi and Principia, which brand offers a wider range of products for dry and sensitive skin?

Some By Mi offers a much wider range of products on this page, including options that Lovi rates as Superior or High for dry and sensitive skin. In comparison, Principia features only a single cleanser that Lovi rates with a caution for those skin types.

Do both Some By Mi and Principia formulate all their products without fragrance?

Yes, both Some By Mi and Principia formulate every product on this page with no fragrance in its ingredients. Reviewers note that Some By Mi products sometimes have a strong or medicinal scent despite this.

Which brand has been on the market longer, Some By Mi or Principia?

Some By Mi has been on the market longer, having been founded in South Korea in 2016, whereas Principia was founded in 2020.

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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