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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 brands known for their thoughtful cleansers, targeted serums, and precise formulas. The Korean brand, founded in 2016, features niacinamide, centella asiatica, and salicylic acid, while the other brand offers precise formulas such as the Gel de Limpeza GL-01. Some By Mi fits dry sensitive skin and sensitive skin best, and Principia suits balanced to oily skin best. Both brands differ in their standout products and formulations, as the first brand's key ingredients reduce acne lesions, decrease hyperpigmentation, and improve skin aging signs.

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 numerous products on this page that achieve Superior or High Lovi fit levels across multiple skin types, whereas Principia only lists a single cleanser with average or lower ratings.

What is the difference between Some By Mi and Principia?

Some By Mi offers a wide variety of cleansers, serums, and moisturizers that Lovi rates as Superior or High for dry sensitive skin and skin with dark spots, whereas Principia features only a single cleanser on this page which Lovi rates as Average for those concerns.

Some By Mi or Principia: which cleanser is better?

Some By Mi offers multiple cleansers with Superior and High Lovi fit levels across skin types, whereas the cleanser from Principia mostly shows Average or lower fits.

Which is more affordable, Some By Mi or Principia?

This page does not provide pricing information to compare the affordability of Some By Mi and Principia.

Which causes fewer breakouts, Some By Mi or Principia?

Some By Mi helps clear acne with effective treatments and cleansers, whereas the products on this page for Principia do not focus on breakouts. Niacinamide may help improve skin condition.

Antioxidants, 2021

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.

Do any products from Some By Mi or Principia contain fragrance in their ingredients?

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

Which brand offers a greater variety of products for dry sensitive skin on this page?

Some By Mi offers a much greater variety of products for dry sensitive skin on this page, with multiple items achieving a Superior or High Lovi fit level. In contrast, Principia lists only one cleanser here, which is rated as a Caution for dry sensitive skin.

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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