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Medik8 vs Principia

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

Medik8 and Principia are two distinct skincare lines known for their specialized approaches to daily care. The British brand, founded in 2009 and owned by L'Oréal Groupe since 2025, offers serums, moisturizers, eye products, toners, and more built around hyaluronic acid, which lengthens toxin wrinkle effect duration, making it best suited for dry and sensitive skin. Conversely, the second brand is widely loved for its thoughtful cleansers and precise formulas that help maintain a healthy, balanced complexion, suiting balanced to oily skin best. While both cater to specific complexions through standout items like Medik8's Surface Radiance Cleanse, Oxy-R Peptides, and Total Moisture Daily Facial Cream alongside Principia's Gel de Limpeza GL-01, they ultimately differ in their primary ingredient focus and ideal skin types.

Medik8 is a British skincare brand founded in 2009 and owned by L'Oréal Groupe since 2025.

loreal.commedik8.comtracxn.com

This page compares some of the most popular Medik8 and Principia products; for every product of both brands, with a fit score for your own skin, use the Lovi app.

Popular Medik8 vs Principia products

Questions and answers

Medik8 or Principia: which is better?

Medik8 is the better choice on this page because it offers a wide range of serums and moisturizers, whereas Principia features only a single cleanser. Lovi rates Medik8 as having Superior fit levels for dry skin and acne-prone skin on certain products, while reviewers frequently praise the brand for deep hydration and brightening.

Dermatologic Therapy, 2022Journal of Cosmetic Dermatology, 2020

What is the difference between Medik8 and Principia?

Medik8 offers a much larger variety of serums, moisturizers, and cleansers on this page that generally suit dry and sensitive skin, whereas Principia features only a single cleanser. Furthermore, the products on this page from Medik8 frequently include ingredients like hyaluronic acid to help improve skin hydration.

Drug Delivery, 2017Dermatologic Therapy, 2022

Medik8 or Principia: which cleanser is better?

Medik8 stands out for cleansers because Surface Radiance Cleanse achieves a Superior fit for acne-prone skin and skin with dark spots on this page, whereas Principia offers only Gel de Limpeza GL-01 which receives lower ratings.

Which is more affordable, Medik8 or Principia?

Principia is more affordable, whereas Medik8 has a high price point according to reviewers of the products on this page.

Which causes fewer breakouts, Medik8 or Principia?

Medik8 offers products on this page like Surface Radiance Cleanse that achieve a Superior fit for acne-prone skin, whereas Principia has only one cleanser listed which achieves a Low fit for that skin type.

Which brand has been around longer, Medik8 or Principia?

Medik8 has been around longer than Principia, having been founded in the United Kingdom in 2009 compared to Principia's founding in 2020.

Do any Medik8 products contain fragrance, and how does that compare to Principia?

Medik8 features one fragranced product among the items on this page, which is Total Moisture Daily Facial Cream, while every product on this page from Principia lists no fragrance in its ingredients.

Which brand is owned by L'Oréal Groupe?

Medik8 is owned by L'Oréal Groupe since 2025, whereas Principia is owned by Viziera Participações Ltda.

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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