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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..

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 is the better choice on this page, offering a wide variety of well-rated serums, moisturizers, and sunscreens that fit dry, acne-prone, and sensitive skin types. In contrast, Principia only lists a single cleanser on this page with lower fit levels for those skin types.

What is the difference between Good Molecules and Principia?

Good Molecules offers a wide range of serums, moisturizers, and sunscreens that fit dry, acne-prone, and sensitive skin well, whereas Principia currently features only a single cleanser on this page. Reviewers note that Good Molecules products are affordable and help fade dark spots.

Good Molecules or Principia: which cleanser is better?

Good Molecules offers a much wider range of cleansers, such as its Hydrating Facial Cleansing Gel which has a High Lovi fit level for dry and sensitive skin, compared to Principia which only features a single cleanser with lower fit ratings. Reviewers note that Good Molecules products are affordable and provide great value.

Which is more affordable, Good Molecules or Principia?

Reviewers frequently note that Good Molecules offers affordable and great value serums and moisturizers across the products on this page. Principia does not have review information available on this page to compare.

Which causes fewer breakouts, Good Molecules or Principia?

Good Molecules and Principia are not directly compared for breakouts on this page, but reviews note that Good Molecules products can sometimes cause breakouts. Lovi fit levels show that Good Molecules features products with varying acne-prone skin ratings, while Principia includes options that may require caution for sensitive or dry skin types.

When was Good Molecules founded compared to Principia?

Good Molecules was founded in 2019, while Principia was founded a year later in 2020.

How many products does Good Molecules have listed compared to Principia?

Good Molecules has 19 products listed on its page, while Principia has only 1 product.

Which brand has a better fit level for dry skin, Good Molecules or Principia?

Good Molecules has a much better fit level for dry skin, with several products rated Superior or High, whereas Principia's cleanser is rated as Caution for dry skin.

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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