Principia vs Rilastil
Principia and Rilastil are skincare lines known for their thoughtful cleansers, targeted serums, and precise, balanced formulas. The first brand offers standout products like the Gel de Limpeza GL-01 and suits balanced to oily skin best, while the second provides nourishing compositions like the Acnestil and suits sensitive, dry, and mature skin types best. Both help maintain a healthy complexion and restore daily comfort, differing mainly in their specific ingredient approaches and ideal skin types.
This page compares some of the most popular Principia and Rilastil products; for every product of both brands, with a fit score for your own skin, use the Lovi app.
Questions and answers
Principia or Rilastil: which is better?
Neither brand is universally better, as both Principia with Gel de Limpeza GL-01 and Rilastil with Acnestil show average fit levels for oily skin. Every product on this page for both brands lists no fragrance in its ingredients.
What is the difference between Principia and Rilastil?
Principia was founded more recently in 2020 by Viziera Participa莽玫es Ltda., while Rilastil has a longer history since 1972 under Istituto Ganassini. Both brands offer products on this page that list no fragrance in their ingredients.
Which is more affordable, Principia or Rilastil?
I am sorry, but the provided page facts do not contain pricing or affordability information for either Principia or Rilastil.
Which causes fewer breakouts, Principia or Rilastil?
Neither brand causes breakouts, but for acne-prone skin, Lovi rates Principia's cleanser as Low fit and Rilastil's Acnestil serum as Average fit.
When were Principia and Rilastil founded, and who owns them?
Principia was founded in 2020 and is owned by Viziera Participa莽玫es Ltda., while Rilastil was founded in 1972 and is owned by Istituto Ganassini.
Do any products from Principia or Rilastil contain fragrance?
Every product on this page from both Principia and Rilastil lists no fragrance in its ingredients.
How does the Lovi fit level for oily skin compare between Principia's Gel de Limpeza GL-01 and Rilastil's Acnestil?
Both brands achieve the same Lovi fit level for oily skin, as Lovi rates both Principia's Gel de Limpeza GL-01 and Rilastil's Acnestil as Average.
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.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sof铆a Perea P茅rez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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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.
