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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 skincare lines designed to address diverse complexions through dedicated formulations. Some By Mi relies on niacinamide, centella asiatica, and salicylic acid across serums, cleansers, toners, and moisturizers to suit sensitive and dark spot-prone skin. Meanwhile, the second brand offers thoughtful cleansers and precise formulas that serve balanced to oily skin best. While both help maintain a healthy complexion, they differ in their core ingredients and ideal skin types.

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 is much more extensive, offering a wide range of products tailored to various skin types and concerns, whereas Principia lists only a single cleanser on this page.

What is the difference between Some By Mi and Principia?

Some By Mi offers a wide variety of products on this page tailored well for sensitive skin and dark spots, whereas Principia features only a single cleanser with average or lower fit levels for most skin types.

Some By Mi or Principia: which cleanser is better?

Some By Mi offers multiple cleansers with High or Superior Lovi fit levels across most skin types, whereas Principia has only one cleanser on this page which shows Average to Caution fit levels.

Which is more affordable, Some By Mi or Principia?

The provided page facts and studies do 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 fits acne-prone skin with Superior to High levels across many products on this page, whereas Principia has only one cleanser listed that shows Low fit for acne-prone skin.

Between Some By Mi and Principia, which brand has been on the market longer and where was it founded?

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

How does the product variety and range of skincare offerings compare between Some By Mi and Principia on this page?

Some By Mi offers a much broader selection of skincare products on this page, including toners, serums, cleansers, and moisturizers that target various skin concerns, whereas Principia features only a single cleanser.

What are the main fragrance properties shared by the products from both Some By Mi and Principia?

Every product on this page for both Some By Mi and Principia lists no fragrance in its ingredients.

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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