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COSRX vs Principia

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

COSRX and Principia are skincare brands offering thoughtful cleansers, serums, moisturizers, masks, and precise formulas. The Korean brand is known for utilizing hyaluronic acid, glycerin, and niacinamide, while both feature standout products like the Advanced Snail Mucin Gel Cleanser and the Gel de Limpeza GL-01 for acne-prone skin. While COSRX suits oily skin and sensitive skin best through formulations that balance moisture and soothe irritation, the other brand suits balanced to oily skin best to maintain a healthy, balanced complexion. They differ in their broader ingredient portfolios and specific target concerns, yet both provide effective choices for daily routines.

COSRX is a Korean skincare brand founded in 2013 and owned by Amorepacific Group since 2024.

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

Popular COSRX vs Principia products

Questions and answers

COSRX or Principia: which is better?

COSRX offers a much wider range of products on this page across multiple categories compared to Principia, which features only a single cleanser. Lovi rates COSRX as a Superior fit for oily, sensitive, and dry sensitive skin types.

What is the difference between COSRX and Principia?

COSRX offers a wide range of 38 products featuring ingredients like snail mucin and niacinamide, whereas Principia is represented by just a single cleanser on this page. The products on this page for COSRX fit oily, sensitive, and dry sensitive skin best, while Principia lacks designated brand-focused routines for specific skin types.

COSRX or Principia: which cleanser is better?

When comparing cleansers, COSRX offers more options that fit various skin types well, such as the Advanced Snail Mucin Gel Cleanser which rates as Superior for dry, sensitive, and combination skin, whereas the Principia Gel de Limpeza GL-01 generally shows lower fit levels across skin types.

Which is more affordable, COSRX or Principia?

This page does not provide pricing or affordability information for either COSRX or Principia.

Which causes fewer breakouts, COSRX or Principia?

COSRX offers multiple products with superior fit levels for acne-prone skin, whereas Principia features only one cleanser on this page with lower fit ratings for acne. COSRX products frequently help control and clear acne effectively.

When was COSRX founded compared to Principia?

COSRX was founded in 2013 in South Korea, whereas Principia was founded in 2020.

Which COSRX products contain fragrance, and do any Principia products contain fragrance?

Only the Vitamin E Vitalizing Sunscreen SPF 50+ by COSRX contains fragrance, while all Principia products on this page list no fragrance in their ingredients.

Which skin types does COSRX fit best according to its brand-focused routines?

According to its brand-focused routines, COSRX fits oily skin, sensitive skin, and dry sensitive skin best.

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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