🇦🇪United Arab Emirates

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 skincare lines designed to address diverse complexions through distinct formulations. The first brand is loved for its luxurious moisturizers, potent serums, and targeted eye products featuring powerhouse ingredients like niacinamide, suiting dry and acne-prone skin best. Meanwhile, the second brand is widely known for its thoughtful cleansers and precise formulas, which suit balanced to oily skin best. Ultimately, they differ in their specific product types and ideal skin types, while both help maintain 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 a better fit than Principia because the products on this page cover a wide range of skin types with High and Superior fit levels, whereas Principia only features a single cleanser with average to caution ratings. Allies of Skin also offers specialized treatments with 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 offers a diverse lineup of serums, moisturizers, and eye products on this page with High to Superior Lovi fit levels for dry and acne-prone skin, whereas Principia features only a single cleanser with lower fit ratings for those skin types. Reviewers note that Allies of Skin provides gentle, effective moisturizers and calming serums, though some mention a high price point and initial skin reactions.

Which is more affordable, Allies of Skin or Principia?

Principia is not described as having a high price point, whereas reviewers often note that Allies of Skin has a high price point.

Which causes fewer breakouts, Allies of Skin or Principia?

Allies of Skin is a better fit for acne-prone skin, with Lovi fit levels ranging from Average to High across the products on this page, whereas Principia's cleanser has a Low fit for acne-prone skin.

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 of the brands include fragrance in their products?

Both brands omit fragrance, as every product on this page for Allies of Skin and Principia lists no fragrance in its ingredients.

What are the common complaints reviewers have about Allies of Skin?

Reviewers frequently mention a high price point for Allies of Skin products. They also often report initial irritation and skin reactions, alongside sometimes noting packaging and mechanical issues.

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?

Scan your face, then any product: Lovi shows how well it fits you and what fits even better.

QR code: get the Lovi app
Download on theApp Store Get it onGoogle Play