# Bayer vs Principia Page: https://lovi.care/skincare/de/compare/bayer-vs-principia The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for Germany. Bayer is a German skincare brand founded in 1863 and owned by Bayer AG. [en.wikipedia.org](https://en.wikipedia.org/wiki/Bayer) [de.wikipedia.org](https://de.wikipedia.org/wiki/Bayer_AG) [forbes.com](https://www.forbes.com/companies/bayer/) [prnewswire.com](https://www.prnewswire.com/news-releases/wellspring-consumer-healthcare-acquires-iconic-otc-skin-care-brands-from-bayer-301789173.html) This page compares some of the most popular Bayer and Principia 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=pgcf1d4d685d). ### Popular Bayer vs Principia products #### Bayer - [Skinoren Cream 20%](https://lovi.care/skincare/de/p/bayer/skinoren-cream-20/for/oily-skin) — High fit #### Principia - [Gel de Limpeza GL-01](https://lovi.care/skincare/de/p/principia/gel-de-limpeza-gl-01/for/oily-skin) — Average fit ## Questions and answers ### Bayer or Principia: which is better? Bayer is a better fit for oily and acne-prone skin, where Lovi rates its products High, compared to Principia's Average fit for those skin types. [Pharmaceutics, 2021](https://pubmed.ncbi.nlm.nih.gov/33923739/) ### Which is more affordable, Bayer or Principia? Neither Bayer nor Principia is more affordable because the page does not show prices for either brand. ### Which causes fewer breakouts, Bayer or Principia? Bayer stands out because its products on this page earn a High fit for acne-prone skin, whereas Principia reaches only a Low fit for that skin type. [Azelaic acid](https://lovi.care/skincare/de/ingredients/azelaic-acid) helps manage acne-prone skin. [Pharmaceutics, 2021](https://pubmed.ncbi.nlm.nih.gov/33923739/) ### When were Bayer and Principia founded and who owns them? Bayer was founded in 1863 in Germany and is owned by Bayer AG, while Principia was founded in 2020 and is owned by Viziera Participacoes Ltda. ### Do any of the Bayer or Principia products on this page contain fragrance? No, every product on this page from both Bayer and Principia lists no fragrance in its ingredients. ## Research behind their key ingredients - [Efficacy and Safety of Azelaic Acid Nanocrystal-Loaded In Situ Hydrogel in the Treatment of Acne Vulgaris](https://pubmed.ncbi.nlm.nih.gov/33923739/) Azelaic acid · Pharmaceutics, 2021 - [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 - [Effects of 15% Azelaic Acid Gel in the Management of Post-Inflammatory Erythema and Post-Inflammatory Hyperpigmentation in Acne Vulgaris](https://pubmed.ncbi.nlm.nih.gov/38734843/) Azelaic acid · Dermatology and Therapy, 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 - [The usefulness of a dermocosmetic containing Myrtus communis extract and azelaic acid for maintenance phase of adult female acne: Results from a randomized exploratory investigator-blinded comparative study](https://pubmed.ncbi.nlm.nih.gov/36729399/) Azelaic acid · Journal of the European Academy of Dermatology and Venereology, 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 - German skincare: [Bayer](https://lovi.care/skincare/de/brands/bayer) - Skincare: [Principia](https://lovi.care/skincare/de/brands/principia) ## More comparisons - [SKIN1004 vs Bayer](https://lovi.care/skincare/de/compare/skin1004-vs-bayer) - [SKIN1004 vs Principia](https://lovi.care/skincare/de/compare/skin1004-vs-principia) - [Anua vs Bayer](https://lovi.care/skincare/de/compare/anua-vs-bayer) - [Anua vs Principia](https://lovi.care/skincare/de/compare/anua-vs-principia) - [Medicube vs Bayer](https://lovi.care/skincare/de/compare/medicube-vs-bayer) - [Medicube vs Principia](https://lovi.care/skincare/de/compare/medicube-vs-principia) - [The Ordinary vs Bayer](https://lovi.care/skincare/de/compare/the-ordinary-vs-bayer) - [The Ordinary vs Principia](https://lovi.care/skincare/de/compare/the-ordinary-vs-principia) - [Beauty of Joseon vs Bayer](https://lovi.care/skincare/de/compare/beauty-of-joseon-vs-bayer) - [Beauty of Joseon vs Principia](https://lovi.care/skincare/de/compare/beauty-of-joseon-vs-principia) - [COSRX vs Bayer](https://lovi.care/skincare/de/compare/cosrx-vs-bayer) - [COSRX vs Principia](https://lovi.care/skincare/de/compare/cosrx-vs-principia) - [CeraVe vs Bayer](https://lovi.care/skincare/de/compare/cerave-vs-bayer) - [CeraVe vs Principia](https://lovi.care/skincare/de/compare/cerave-vs-principia) - [La Roche-Posay vs Bayer](https://lovi.care/skincare/de/compare/la-roche-posay-vs-bayer) - [La Roche-Posay vs Principia](https://lovi.care/skincare/de/compare/la-roche-posay-vs-principia) - [Dr. Althea vs Bayer](https://lovi.care/skincare/de/compare/dr-althea-vs-bayer) - [Dr. Althea vs Principia](https://lovi.care/skincare/de/compare/dr-althea-vs-principia) - [Some By Mi vs Bayer](https://lovi.care/skincare/de/compare/some-by-mi-vs-bayer) - [Some By Mi vs Principia](https://lovi.care/skincare/de/compare/some-by-mi-vs-principia) ## 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/bayer-vs-principia - United Kingdom: https://lovi.care/skincare/uk/compare/bayer-vs-principia - Ireland: https://lovi.care/skincare/ie/compare/bayer-vs-principia - Germany: https://lovi.care/skincare/de/compare/bayer-vs-principia (this page) - France: https://lovi.care/skincare/fr/compare/bayer-vs-principia - Italy: https://lovi.care/skincare/it/compare/bayer-vs-principia - Netherlands: https://lovi.care/skincare/nl/compare/bayer-vs-principia - Spain: https://lovi.care/skincare/es/compare/bayer-vs-principia - Canada: https://lovi.care/skincare/ca/compare/bayer-vs-principia - Australia: https://lovi.care/skincare/au/compare/bayer-vs-principia - Singapore: https://lovi.care/skincare/sg/compare/bayer-vs-principia - Saudi Arabia: https://lovi.care/skincare/sa/compare/bayer-vs-principia - United Arab Emirates: https://lovi.care/skincare/ae/compare/bayer-vs-principia