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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 known for thoughtful cleansers, precise formulas, serums, moisturizers, masks, and more. COSRX incorporates hyaluronic acid, glycerin, and niacinamide, while the second offers targeted options like the Gel de Limpeza GL-01. The first suits acne-prone and oily skin best, whereas both suit balanced to oily skin. They differ primarily in their exact ingredient profiles and regional origins.

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 selection of products on this page across multiple categories, while Principia features only a single cleanser. COSRX products on this page frequently achieve superior or high fit levels for skin types such as acne-prone, oily, and sensitive skin.

What is the difference between COSRX and Principia?

COSRX offers a wide range of products with strong fit levels for acne-prone, oily, and sensitive skin types, whereas Principia features only a single cleanser on this page. COSRX also includes both fragranced and fragrance-free options across its collection.

COSRX or Principia: which cleanser is better?

COSRX offers multiple cleansers with superior or high Lovi fit levels across skin types, whereas Principia's single cleanser on this page has lower fit ratings. COSRX cleansers help with gentle cleansing and acne control while maintaining a fragrance-free formula.

Which is more affordable, COSRX or Principia?

The provided page facts do not contain pricing information, so neither COSRX nor Principia can be identified as more affordable.

Which causes fewer breakouts, COSRX or Principia?

COSRX offers multiple products with Superior or High Lovi fit levels for acne-prone skin, whereas Principia has only one cleanser listed on this page, which has a Low fit for acne-prone skin. Therefore, COSRX is much better equipped for acne control, while Principia's single product may not help with breakouts.

When was COSRX founded, and who is its parent company?

COSRX was founded in 2013 in South Korea and has been owned by Amorepacific Group since 2024.

How many COSRX products contain fragrance out of the 38 listed on the page?

Out of the 38 COSRX products listed on this page, only 1 product contains fragrance.

Which COSRX cleanser is rated as having a Superior fit for dry skin?

The Advanced Snail Mucin Gel Cleanser is rated as having a Superior fit for dry 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

How does it fit your skin?

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