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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 better than Principia because the products on this page offer a much wider selection of serums and moisturizers, with Lovi fit levels reaching Superior for dry skin. Hyaluronic acid helps provide deep hydration.

Drug Delivery, 2017Dermatologic Therapy, 2022

What is the difference between Medik8 and Principia?

Medik8 offers a wide range of serums, creams, and cleansers that feature ingredients like hyaluronic acid and vitamin C, while Principia lists only a single cleanser on this page. Medik8 achieves a Superior Lovi fit for dry skin with products like Bakuchiol Peptides and Hydr8 B5 Intense.

Drug Delivery, 2017Dermatologic Therapy, 2022

Medik8 or Principia: which cleanser is better?

Medik8 provides a better cleanser option on this page, as Surface Radiance Cleanse has a Superior Lovi fit level for acne-prone skin, oily acne-prone skin, and skin with dark spots, whereas Principia Gel de Limpeza GL-01 only reaches an Average fit for those skin types.

Which is more affordable, Medik8 or Principia?

Reviewers frequently note a high price point for Medik8, while pricing information for Principia is limited on this page.

Which causes fewer breakouts, Medik8 or Principia?

Medik8 is a better fit for acne-prone skin, as the products on this page achieve up to a Superior Lovi fit level for this skin type, whereas Principia only reaches Low. Medik8 also includes specialized options like Surface Radiance Cleanse, which helps with breakouts.

Which brand has been around longer, Medik8 or Principia?

Medik8 has been around longer than Principia, as Medik8 was founded in 2009 in the United Kingdom while Principia was founded in 2020.

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

Medik8 has one product on this page with fragrance, which is Total Moisture Daily Facial Cream, while Principia lists no fragrance in any of its products on this page.

What are the main pros and cons of Medik8 based on reviewer feedback?

Based on reviewer feedback, the main pros of Medik8 are gentle and non-irritating serums, deep hydration and plumping, improved skin texture, and brightening and glow, while the cons include a high price point, packaging issues, and slow or delayed results.

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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