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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. The American brand founded in 2019 and owned by Beautylish, Inc. uses key ingredients like glycerin and hyaluronic acid, whereas the second brand offers products that help maintain a healthy, balanced complexion. Both brands suit balanced and oily skin best, with formulations addressing excess oil without heaviness. They differ primarily in their specific standout products, such as the Overnight Exfoliating Treatment, the Sheer Mineral Sunscreen SPF 30, the Yerba Mate Wake Up Eye Gel, and the Gel de Limpeza GL-01.

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 on these pages because it offers a wide variety of well-rated products, whereas Principia features only a single cleanser with lower fit levels. Reviewers often mention that Good Molecules delivers affordable, hydrating, and gentle skincare options.

What is the difference between Good Molecules and Principia?

Good Molecules offers a wide range of products with high or superior Lovi fit levels across multiple skin types, whereas the products on this page for Principia are limited to a single cleanser with average to caution fit levels. Additionally, Good Molecules features affordable and hydrating options with key ingredients like glycerin and hyaluronic acid.

Dermatologic Therapy, 2022

Good Molecules or Principia: which cleanser is better?

Good Molecules offers a better cleanser option since its Hydrating Facial Cleansing Gel has a High Lovi fit level for dry and sensitive skin, whereas Principia's Gel de Limpeza GL-01 has a low fit for acne-prone skin and requires caution for dry skin.

Which is more affordable, Good Molecules or Principia?

Good Molecules offers a broad range of products on this page that reviewers frequently mention as affordable and great value, whereas Principia features only a single cleanser on its page. Reviewers note that Good Molecules provides affordable and hydrating moisturizers along with affordable and great value serums.

Which causes fewer breakouts, Good Molecules or Principia?

Good Molecules offers a wide range of products for acne-prone skin, whereas the Principia selection on this page includes only a cleanser rated Low for acne-prone skin.

Between Good Molecules and Principia, which brand offers a cleanser suitable for dry skin?

Good Molecules offers a cleanser suitable for dry skin, with Lovi rating its Hydrating Facial Cleansing Gel as a High fit. In contrast, Principia's cleanser receives a Caution fit for dry skin.

How do the founding years and parent companies of Good Molecules and Principia compare?

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 any products from either Good Molecules or Principia contain fragrance in their ingredients?

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

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

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