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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 products on this page for The INKEY List generally offer broader options across multiple skin types compared to Principia, which features only a single cleanser on this page.

What is the difference between The INKEY List and Principia?

The INKEY List offers sixteen products on this page covering multiple categories with fragrance-free formulas, whereas Principia has only one cleanser listed. Reviewers note that The INKEY List provides affordable and hydrating options, though some experience packaging issues.

The INKEY List or Principia: which cleanser is better?

The INKEY List offers multiple cleansers on this page, such as the Salicylic Acid Cleanser and Oat Cleansing Balm, with High Lovi fit levels for oily and sensitive skin types. In contrast, the Principia cleanser listed on this page shows Average to Low fit levels across most skin types.

Which is more affordable, The INKEY List or Principia?

Reviewers note that The INKEY List offers affordable moisturizers and serums among the products on this page, whereas the page data does not include pricing or reviews for Principia to make a direct comparison.

Which causes fewer breakouts, The INKEY List or Principia?

The products on this page for The INKEY List and Principia do not have direct comparative data for breakouts, though shoppers sometimes note purging and breakouts with The INKEY List.

When were The INKEY List and Principia founded?

The INKEY List was founded in 2018, and Principia was founded in 2020.

Which brand offers products with no fragrance listed in their ingredients?

Both The INKEY List and Principia offer products with no fragrance listed in their ingredients, as every product on both of their respective pages lists no fragrance.

How many products are listed for The INKEY List compared to Principia?

The INKEY List has 16 products listed on this page, while Principia has only 1 product.

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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