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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 thoughtful formulas and targeted results. The British brand Medik8 focuses on serums, moisturizers, eye products, and toners built around hyaluronic acid, suiting dry and dry sensitive skin best. Conversely, the second option is widely loved for precise cleansers that suit balanced to oily skin best. While both offer standout solutions for concerns like acne, they differ primarily in their core 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 selection of serums, moisturizers, and cleansers with strong fit levels for dry and sensitive skin, whereas Principia lists only a single cleanser. The products on this page help deliver deep hydration and improve skin texture.

Drug Delivery, 2017Dermatologic Therapy, 2022

What is the difference between Medik8 and Principia?

Medik8 offers a wide range of serums, creams, and cleansers that help with anti-aging, hydration, and brightening, whereas Principia currently features only a single cleanser on this page. Medik8 fits dry, dry sensitive, and combination skin best according to its brand routines, and includes key ingredients like hyaluronic acid.

Drug Delivery, 2017Dermatologic Therapy, 2022

Medik8 or Principia: which cleanser is better?

Medik8 offers superior cleansers like Surface Radiance Cleanse for acne-prone skin, whereas Principia has only one cleanser on this page with average fit levels for oily and sensitive skin.

Which is more affordable, Medik8 or Principia?

Principia is more affordable, whereas Medik8 has a high price point. Lovi rates the products on this page for fit, but pricing depends on the brand.

Which causes fewer breakouts, Medik8 or Principia?

Medik8 offers products like Surface Radiance Cleanse that achieve a Superior Lovi fit level for acne-prone skin, whereas Principia has only one cleanser on this page with an Average fit. Medik8 serums help provide a gentle experience, while the products on this page help improve skin texture and reduce breakouts.

Between Medik8 and Principia, which brand offers a wider variety of product types such as serums, toners, and eye treatments?

Medik8 offers a much wider variety of product types on this page, including multiple serums, toners, cleansers, moisturizers, and eye treatments, whereas Principia features only a single cleanser. Medik8 helps shoppers target various skincare needs with its extensive range.

How do the founding years and company ownership compare between Medik8 and Principia?

Medik8 was founded in 2009 in the United Kingdom and has been owned by L'Oréal Groupe since 2025, whereas Principia was founded in 2020 and is owned by Viziera Participações Ltda.

Which Medik8 products achieve a Superior Lovi fit level for dry skin?

For dry skin, the products on this page by Medik8 that achieve a Superior Lovi fit level are Bakuchiol Peptides, Hydr8 B5 Intense, and Press & Glow.

Drug Delivery, 2017Dermatologic Therapy, 2022

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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