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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, targeted serums, and daily treatments. The Korean brand features niacinamide, centella asiatica, and salicylic acid to address dark spots, dryness, and acne-prone skin, while Principia relies on precise formulas best suited for balanced to oily complexions. Both brands differ primarily in their regional heritage and specific ingredient focuses, helping users maintain a healthy complexion.

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 better suited for most skin concerns on this page, offering a wide range of products with Superior or High Lovi fit levels for skin with dark spots, dry skin, and acne-prone skin. Principia features only a single cleanser with average to low fit levels across most skin types.

What is the difference between Some By Mi and Principia?

Some By Mi offers a wide variety of cleansers, toners, serums, and moisturizers that fit dry skin, dry sensitive skin, and skin with dark spots at High to Superior levels. In contrast, Principia features only a single cleanser on this page, which has an Average fit for most skin types.

Some By Mi or Principia: which cleanser is better?

Some By Mi offers multiple cleansers with a Superior or High Lovi fit for oily and acne-prone skin types, whereas the cleanser from Principia has an Average fit for those same skin types.

Which is more affordable, Some By Mi or Principia?

The provided page and facts do not contain pricing information for either Some By Mi or Principia, so it is not possible to determine which brand is more affordable.

Which causes fewer breakouts, Some By Mi or Principia?

Some By Mi helps clear acne with effective treatments like the AHA-BHA-PHA 30 Days Miracle Toner, which has a Superior fit for oily acne-prone skin, whereas Principia offers fewer breakout-focused products on this page.

When was Some By Mi founded compared to Principia?

Some By Mi was founded in 2016, while Principia was founded later in 2020.

Which brand offers more products for dry and sensitive skin based on the page?

Some By Mi offers multiple products for dry and sensitive skin on this page, including the Yuja Niacin Brightening Moisture Gel Cream which has a Superior Lovi fit level for dry sensitive skin, whereas Principia lists only one cleanser which is not rated for dry sensitive skin.

What are the main key ingredients found across Some By Mi products?

The main key ingredients found across Some By Mi products on this page are Niacinamide, Centella asiatica, and Salicylic acid.

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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