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Allies of Skin vs Principia

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

Allies of Skin and Principia are two thoughtful skincare lines known for distinct formulations and targeted care. The former offers a rich range of moisturizers, serums, and eye products featuring niacinamide that suit dry and mature skin best, while the latter provides precise cleansers designed for balanced to oily skin. Both brands address specific concerns like acne-prone skin with standout treatments such as the Molecular Saviour Probiotics Treatment Mist and the Gel de Limpeza GL-01. Ultimately, Allies of Skin focuses on reducing hyperpigmentation and signs of aging with potent ingredients, whereas Principia emphasizes maintaining a healthy, balanced complexion.

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

Popular Allies of Skin vs Principia products

Questions and answers

Allies of Skin or Principia: which is better?

Allies of Skin is the better choice because the products on this page offer superior to high fit levels across a wide range of skin types, whereas Principia has much more limited options that rate average to low. Allies of Skin also includes key ingredients like niacinamide, which helps reduce cutaneous pigmentation.

The British Journal of Dermatology, 2002

What is the difference between Allies of Skin and Principia?

Allies of Skin features a wider selection of fragrance-free serums, moisturizers, and eye creams with high Lovi fit levels for dry and mature skin, whereas Principia offers only a single cleanser on this page which has a lower fit for dry skin. Reviewers note that Allies of Skin provides effective anti-aging and brightening benefits using ingredients like niacinamide, though it comes with a high price point.

The British Journal of Dermatology, 2002

Which is more affordable, Allies of Skin or Principia?

Reviewers note that Allies of Skin has a high price point, while information on Principia's pricing relative to Allies is not detailed on the page.

Which causes fewer breakouts, Allies of Skin or Principia?

Allies of Skin is unlikely to cause breakouts for the products on this page, as reviewers mention gentle and effective moisturizers, while Principia includes cleansers with low fit or caution for acne-prone and dry skin types.

Which brand was founded more recently, Allies of Skin or Principia?

Principia was founded more recently in 2020, whereas Allies of Skin was founded in 2016.

Do either Allies of Skin or Principia include fragrance in their products?

Both Allies of Skin and Principia do not include fragrance in any of the products on this page.

Which brand offers a wider variety of product types such as serums and moisturizers on this page?

Allies of Skin offers a wider variety of product types on this page, featuring multiple serums and moisturizers, whereas Principia includes only a cleanser.

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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