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Good Molecules vs Principia

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

Good Molecules and Principia are two skincare brands appreciated for their thoughtful approach to daily routines. Good Molecules is cherished for its targeted serums, nourishing moisturizers, revitalizing eye products, and gentle exfoliants, while the second brand is widely loved for its thoughtful cleansers and precise formulas. The first brand suits dry skin and oily skin best, whereas its counterpart suits balanced to oily skin best. They differ primarily in their product ranges and specific targeted formulations, such as the Overnight Exfoliating Treatment, Sheer Mineral Sunscreen SPF 30, and Yerba Mate Wake Up Eye Gel from the American brand, and the Gel de Limpeza GL-01 from Principia.

Good Molecules is an American skincare brand founded in 2019 and owned by Beautylish, Inc..

beautymatter.comgoodmolecules.compitchbook.compreqin.com

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

Popular Good Molecules vs Principia products

Questions and answers

Good Molecules or Principia: which is better?

Good Molecules offers a much wider range of products that fit various skin types well, whereas Principia features only a single cleanser on this page. Reviewers note that Good Molecules provides affordable, hydrating, and gentle formulas that help fade dark spots.

What is the difference between Good Molecules and Principia?

Good Molecules offers a wide range of products that fit dry, oily, and mature skin well, whereas Principia only features a single cleanser on this page.

Good Molecules or Principia: which cleanser is better?

Good Molecules offers a Hydrating Facial Cleansing Gel that fits dry and sensitive skin at a High level, whereas the cleanser on the Principia page rates lower for dry skin.

Which is more affordable, Good Molecules or Principia?

Good Molecules offers a wide range of affordable and great value products on this page, whereas Principia features only a single cleanser.

Which causes fewer breakouts, Good Molecules or Principia?

Good Molecules offers a wide range of products with varied fit levels for acne-prone skin, while Principia features only a single cleanser on this page. Reviewers note that Good Molecules products sometimes cause breakouts, but there is no specific breakout data for Principia.

When were Good Molecules and Principia founded and who owns them?

Good Molecules was founded in 2019 in the United States and is owned by Beautylish, Inc., while Principia was founded in 2020 and is owned by Viziera Participações Ltda.

Do Good Molecules and Principia products contain fragrance?

Every product on the Good Molecules and Principia pages lists no fragrance in its ingredients.

What skin types do the brand-focused routines of Good Molecules fit best?

The brand-focused routines of Good Molecules fit dry skin, oily skin, and mature skin best.

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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