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The INKEY List vs Principia

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

The INKEY List is a British skincare brand founded in 2018 and owned by Brand Evangelists for Beauty Limited.

cosmeticsbusiness.comprnewswire.comtheinkeylist.comtracxn.com

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

Popular The INKEY List vs Principia products

Questions and answers

The INKEY List or Principia: which is better?

The INKEY List offers a wide variety of options for sensitive, combination, and oily acne-prone skin, whereas the products on this page for Principia show mostly average to caution fit levels across skin types.

What is the difference between The INKEY List and Principia?

The INKEY List offers a wide variety of products on this page with diverse fit levels across skin types, whereas Principia features only a single cleanser. Reviewers note that The INKEY List provides affordable and hydrating moisturizers, though some packaging issues are sometimes noted.

The INKEY List or Principia: which cleanser is better?

The INKEY List offers a much wider variety of cleansers on this page, such as the Salicylic Acid Cleanser and Oat Cleansing Balm, whereas Principia only lists one cleanser, the Gel de Limpeza GL-01. Reviewers note that the products on this page help provide good options for various skin types.

Which is more affordable, The INKEY List or Principia?

Reviewers note that the products on this page from The INKEY List are affordable, while pricing details for Principia are not highlighted here.

Which causes fewer breakouts, The INKEY List or Principia?

The products on this page for The INKEY List sometimes note purging and breakouts as a side effect, while Principia lacks enough data on this specific issue. Shoppers find that The INKEY List fits sensitive, combination, and oily acne-prone skin best with fragrance-free options.

When were The INKEY List and Principia founded and who owns them?

The INKEY List was founded in 2018 in the United Kingdom and is owned by Brand Evangelists for Beauty Limited, while Principia was founded in 2020 and is owned by Viziera Participações Ltda.

Which brand offers more products for dry skin and oily skin according to the page?

The INKEY List offers more products for both dry skin and oily skin than Principia on this page. Reviewers note that The INKEY List provides hydrating and lightweight moisturizers.

How do the skin types that The INKEY List and Principia best fit compare based on their brand-focused routines?

The INKEY List best fits sensitive skin, combination skin, and oily acne-prone skin based on its brand-focused routines, while Principia does not list any best-fit skin types for its routines on this page.

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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