# Principia vs SEYOUL Page: https://lovi.care/skincare/fr/compare/principia-vs-seyoul The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for France. Principia and SEYOUL are thoughtful skincare brands offering distinct approaches to daily care. Principia is widely loved for its thoughtful cleansers and precise formulas, such as the Gel de Limpeza GL-01, while SEYOUL is known for its nourishing masks and delicate formulas, including the [Collagen](https://lovi.care/skincare/fr/ingredients/collagen) Night Wrapping Mask. The first brand suits balanced to oily skin best to maintain a healthy, balanced complexion, whereas its counterpart suits dry, oily, and combination skin best with quiet precision. Ultimately, both differ primarily in their standout product types and key ingredients tailored for specific skin needs. This page compares some of the most popular Principia and SEYOUL products; for every product of both brands, with a fit score for your own skin, [use the Lovi app](https://app.pora.ai/vqqJ/j1xj2b6o?af_sub2=compare&af_sub3=selection_note&af_sub4=pg8851b9470e). ### Popular Principia vs SEYOUL products #### Principia - [Gel de Limpeza GL-01](https://lovi.care/skincare/fr/p/principia/gel-de-limpeza-gl-01/for/oily-skin) — Average fit #### SEYOUL - [Collagen Night Wrapping Mask](https://lovi.care/skincare/fr/p/seyoul/collagen-night-wrapping-mask/for/dry-skin) — Average fit ## Questions and answers ### Principia or SEYOUL: which is better? Neither brand stands out as universally better, as Lovi rates both Principia and SEYOUL mostly at average to low levels depending on your skin type. The products on this page from both brands list no fragrance in their ingredients. ### What is the difference between Principia and SEYOUL? Principia generally fits oily skin with an average level, whereas SEYOUL rates a warning for oily skin. Both brands offer products on this page that list no fragrance. ### Which is more affordable, Principia or SEYOUL? This page does not provide enough pricing information to determine whether Principia or SEYOUL is more affordable. ### Which causes fewer breakouts, Principia or SEYOUL? Principia generally helps with fewer breakouts than SEYOUL for the products on this page, as SEYOUL's acne-prone and oily acne-prone skin fit is rated as Caution and Warning while Principia's is Average. Both brands list no fragrance in their ingredients on this page. ### Which brand was founded more recently, Principia or SEYOUL? SEYOUL was founded more recently in 2022, whereas Principia was founded in 2020. ### Who are the parent companies of Principia and SEYOUL? Principia is owned by Viziera Participações Ltda., and SEYOUL is owned by Thành Vinh Holdings. ### Do any of the products from Principia or SEYOUL contain fragrance? Every product on this page from both Principia and SEYOUL lists no fragrance in its ingredients. ## Research behind their key ingredients - [Collagen Supplements for Aging and Wrinkles: A Paradigm Shift in the Fields of Dermatology and Cosmetics](https://pubmed.ncbi.nlm.nih.gov/35223163/) Collagen · Dermatology Practical & Conceptual, 2022 - [Use of Collagen in Cosmetic Products](https://pubmed.ncbi.nlm.nih.gov/38534748/) Collagen · Current Issues in Molecular Biology, 2024 - [The 24-hour skin hydration and barrier function effects of a hyaluronic 1%, glycerin 5%, and Centella asiatica stem cells extract moisturizing fluid: an intra-subject, randomized, assessor-blinded study](https://pubmed.ncbi.nlm.nih.gov/28860834/) Glycerin · Clinical, Cosmetic and Investigational Dermatology, 2017 - [A Double-Blinded, Randomized, Vehicle-Controlled Study of the Efficacy of Moisturizer Containing Licochalcone A, Decanediol, L-Carnitine, and Salicylic Acid for Prevention of Acne Relapse in Asian Population](https://pubmed.ncbi.nlm.nih.gov/33150170/) Salicylic acid · BioMed Research International, 2020 - [Efficacy of a multitargeted, salicylic acid-based dermocosmetic cream compared to benzoyl peroxide 5% in Acne vulgaris: Results from a randomized study](https://pubmed.ncbi.nlm.nih.gov/37941097/) Salicylic acid · Journal of Cosmetic Dermatology, 2024 - [A Salicylic Acid-Based Dermocosmetic is Effective as an Adjunct to Benzoyl Peroxide for Mild to Moderate Acne and as Monotherapy in Maintenance Post Benzoyl Peroxide](https://pubmed.ncbi.nlm.nih.gov/38051857/) Salicylic acid · Journal of Drugs in Dermatology, 2023 - [Effect of an Emollient Emulsion Containing 15.0% of Caprylic/Capric Triglyceride on the Urocanic Acid of the Stratum Corneum](https://pubmed.ncbi.nlm.nih.gov/37109405/) Caprylic capric triglyceride · Life, 2023 - [Impact of dermal emulsions containing diacyl phospholipids, mono acyl phospholipids, sodium lauryl ether sulfate and polysorbate 80 in combination with UVA irradiation on human skin physiology in vivo: A pilot study](https://pubmed.ncbi.nlm.nih.gov/42617898/) Sodium laureth sulfate · International Journal of Pharmaceutics, 2026 ## The brands - Skincare: [Principia](https://lovi.care/skincare/fr/brands/principia) - Skincare: [SEYOUL](https://lovi.care/skincare/fr/brands/seyoul) ## More comparisons - [SKIN1004 vs Principia](https://lovi.care/skincare/fr/compare/skin1004-vs-principia) - [SKIN1004 vs SEYOUL](https://lovi.care/skincare/fr/compare/skin1004-vs-seyoul) - [Anua vs Principia](https://lovi.care/skincare/fr/compare/anua-vs-principia) - [Anua vs SEYOUL](https://lovi.care/skincare/fr/compare/anua-vs-seyoul) - [Medicube vs Principia](https://lovi.care/skincare/fr/compare/medicube-vs-principia) - [Medicube vs SEYOUL](https://lovi.care/skincare/fr/compare/medicube-vs-seyoul) - [The Ordinary vs Principia](https://lovi.care/skincare/fr/compare/the-ordinary-vs-principia) - [The Ordinary vs SEYOUL](https://lovi.care/skincare/fr/compare/the-ordinary-vs-seyoul) - [Beauty of Joseon vs Principia](https://lovi.care/skincare/fr/compare/beauty-of-joseon-vs-principia) - [Beauty of Joseon vs SEYOUL](https://lovi.care/skincare/fr/compare/beauty-of-joseon-vs-seyoul) - [COSRX vs Principia](https://lovi.care/skincare/fr/compare/cosrx-vs-principia) - [COSRX vs SEYOUL](https://lovi.care/skincare/fr/compare/cosrx-vs-seyoul) - [CeraVe vs Principia](https://lovi.care/skincare/fr/compare/cerave-vs-principia) - [CeraVe vs SEYOUL](https://lovi.care/skincare/fr/compare/cerave-vs-seyoul) - [La Roche-Posay vs Principia](https://lovi.care/skincare/fr/compare/la-roche-posay-vs-principia) - [La Roche-Posay vs SEYOUL](https://lovi.care/skincare/fr/compare/la-roche-posay-vs-seyoul) - [Dr. Althea vs Principia](https://lovi.care/skincare/fr/compare/dr-althea-vs-principia) - [Dr. Althea vs SEYOUL](https://lovi.care/skincare/fr/compare/dr-althea-vs-seyoul) - [Some By Mi vs Principia](https://lovi.care/skincare/fr/compare/some-by-mi-vs-principia) - [Some By Mi vs SEYOUL](https://lovi.care/skincare/fr/compare/some-by-mi-vs-seyoul) ## About the Lovi Fit Lovi: Unbiased, science-based skincare AI trained on real user outcomes. Lovi compares products by their fit scores, calculated from the full ingredient list with brand-independent rules its 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. Levels from best to worst: Superior, High, Average, Low, Caution, Warning. Behind this comparison: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board). Page built Nov 8, 2026. More from Lovi: https://lovi.care/skincare/llms.txt ## This page in other countries - United States: https://lovi.care/skincare/compare/principia-vs-seyoul - United Kingdom: https://lovi.care/skincare/uk/compare/principia-vs-seyoul - Ireland: https://lovi.care/skincare/ie/compare/principia-vs-seyoul - Germany: https://lovi.care/skincare/de/compare/principia-vs-seyoul - France: https://lovi.care/skincare/fr/compare/principia-vs-seyoul (this page) - Italy: https://lovi.care/skincare/it/compare/principia-vs-seyoul - Netherlands: https://lovi.care/skincare/nl/compare/principia-vs-seyoul - Spain: https://lovi.care/skincare/es/compare/principia-vs-seyoul - Canada: https://lovi.care/skincare/ca/compare/principia-vs-seyoul - Australia: https://lovi.care/skincare/au/compare/principia-vs-seyoul - Singapore: https://lovi.care/skincare/sg/compare/principia-vs-seyoul - Saudi Arabia: https://lovi.care/skincare/sa/compare/principia-vs-seyoul - United Arab Emirates: https://lovi.care/skincare/ae/compare/principia-vs-seyoul