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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 widely loved for their thoughtful ranges of cleansers, serums, moisturizers, eye products, exfoliants, and precise formulas. Good Molecules is an American brand founded in 2019 and owned by Beautylish, Inc. that is carefully formulated with glycerin and hyaluronic acid, whereas Principia focuses on maintaining a healthy, balanced complexion. The first brand suits dry skin and acne-prone skin best, featuring standout options like the Overnight Exfoliating Treatment, the Sheer Mineral Sunscreen SPF 30, and the Yerba Mate Wake Up Eye Gel, while the second brand suits balanced to oily skin best with standout products like the Gel de Limpeza GL-01. They differ because the first brand uses glycerin to improve hydration and restore barrier function and hyaluronic acid to lengthen the effect of wrinkle-reducing toxins, while both brands address diverse moisture and clarity needs through their gentle formulations.

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

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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 is the better choice for most shoppers, as the products on this page offer a wide variety of high fit levels for dry, acne-prone, and oily skin, unlike Principia which features only a single cleanser. Reviewers also mention that Good Molecules delivers affordable, gentle, and hydrating formulas that help fade dark spots.

What is the difference between Good Molecules and Principia?

Good Molecules offers a wide range of fragrance-free skincare products well-suited for dry, acne-prone, and oily skin, while Principia currently features only a single cleanser on this page. Reviewers note that Good Molecules products are affordable and often help fade dark spots and improve skin texture.

Good Molecules or Principia: which cleanser is better?

Good Molecules offers a superior cleanser choice on this page, with its Hydrating Facial Cleansing Gel rated High for dry, sensitive, dry sensitive, mature, and acne-prone skin types. In contrast, Principia features only the Gel de Limpeza GL-01, which receives lower average and caution ratings across those same skin types.

Which is more affordable, Good Molecules or Principia?

Reviewers note that Good Molecules offers affordable and great value serums as well as affordable and hydrating moisturizers, while the products on this page for Principia do not mention pricing or value.

Which causes fewer breakouts, Good Molecules or Principia?

Good Molecules offers a wide range of products with varying fit levels for acne-prone skin, whereas the products on this page for Principia include only a single cleanser. Reviewers note that Good Molecules can sometimes cause breakouts.

When was Good Molecules founded compared to Principia?

Good Molecules was founded in 2019 in the United States, whereas Principia was founded in 2020.

How many products are listed for Good Molecules versus Principia on the comparison page?

Good Molecules has nineteen products listed on the page, whereas Principia has only one product.

Which company owns Good Molecules and which company owns Principia?

Good Molecules is owned by Beautylish, Inc., while Principia is owned by Viziera Participações Ltda.

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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