# Principia vs MAËLYS

Page: https://lovi.care/skincare/it/compare/principia-vs-maelys

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for Italy.

Principia and MAËLYS are skincare lines offering distinct approaches to daily care. Principia is known for thoughtful cleansers and precise formulas that suit balanced to oily skin best, featuring standout products like the Gel de Limpeza GL-01 for acne-prone skin to help maintain a healthy, balanced complexion. In contrast, the brand known as MAËLYS is celebrated for targeted [serums](https://lovi.care/skincare/it/ingredients/serum) and advanced formulas that suit all skin types best, offering specialized solutions like the TOO-FINE for acne-prone skin and the RE-LURE Tight & Tone Body Serum for skin with dark spots. Both deliver thoughtful care through these unique formulations, differing primarily in their ideal skin types and core product focuses.

This page compares some of the most popular Principia and MAËLYS 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=pg092749b9e8).

### Popular Principia vs MAËLYS products

#### Principia

- [Gel de Limpeza GL-01](https://lovi.care/skincare/it/p/principia/gel-de-limpeza-gl-01/for/oily-skin) — Average fit

#### MAËLYS

- [TOO-FINE](https://lovi.care/skincare/it/p/maelys/too-fine/for/sensitive-skin) — Low fit
- [RE-LURE Tight & Tone Body Serum](https://lovi.care/skincare/it/p/maelys/re-lure-tight-and-tone-body-serum/for/dry-sensitive-skin) — Average fit

## Questions and answers

### Principia or MAËLYS: which is better?

Neither brand stands out as better overall, because Lovi rates the products on this page mostly as average or low for various skin types. Every Principia product on this page lists no fragrance, whereas one of the two MAËLYS products includes fragrance.

### What is the difference between Principia and MAËLYS?

Principia offers fragrance-free products on this page, whereas MAËLYS includes fragrance in at least one item like RE-LURE Tight & Tone Body [Serum](https://lovi.care/skincare/it/ingredients/serum). Lovi rates the products on this page for Principia mostly as Average across various skin types, while MAËLYS items receive mostly Low or Caution ratings.

### Which is more affordable, Principia or MAËLYS?

Neither Principia nor MAËLYS is described as more affordable since the provided page facts do not list pricing information for either brand.

### Which causes fewer breakouts, Principia or MAËLYS?

Principia is more likely to cause fewer breakouts because the products on this page have an average fit for acne-prone skin, whereas MAËLYS products generally have a low fit for acne-prone skin.

### Which brand was founded earlier, Principia or MAËLYS?

MAËLYS was founded earlier, in 2017, while Principia was founded in 2020.

### Which brand includes fragrance in its products, Principia or MAËLYS?

MAËLYS includes fragrance in at least one of its products on this page, specifically RE-LURE Tight & Tone Body Serum, whereas Principia lists no fragrance in any of the products on this page.

### Who owns the skincare brands Principia and MAËLYS?

Principia is owned by Viziera Participações Ltda., and MAËLYS is owned by Barinboim Group.

## Research behind their key ingredients

- [Regulatory effects of Lactobacillus plantarum-GMNL6 on human skin health by improving skin microbiome](https://pubmed.ncbi.nlm.nih.gov/33526970/) Lactobacillus · International Journal of Medical Sciences, 2021
- [Treatment of acne with a combination of propolis, tea tree oil, and Aloe vera compared to erythromycin cream: two double-blind investigations](https://pubmed.ncbi.nlm.nih.gov/30588129/) Aloe barbadensis leaf juice · Clinical Pharmacology, 2018
- [Efficacy of probiotic-derived lotion from Lactobacillus paracasei MSMC 39-1 in mild to moderate acne vulgaris, randomized controlled trial](https://pubmed.ncbi.nlm.nih.gov/35384257/) Lactobacillus · Journal of Cosmetic Dermatology, 2022
- [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
- [Botulinum toxin injection as a single or combined treatment with non-cross-linked high molecular weight and low molecular weight hyaluronic acid gel for neck rejuvenation: A randomized clinical trial](https://pubmed.ncbi.nlm.nih.gov/35775872/) Hydrolyzed hyaluronic acid · Dermatologic Therapy, 2022
- [Efficacy and Tolerability of Stable Hybrid Cooperative Complexes of High- and Low-Molecular Weight Hyaluronic Acid in Asian Patients: An Open-Label Study](https://pubmed.ncbi.nlm.nih.gov/40921777/) Hydrolyzed hyaluronic acid · Aesthetic Plastic Surgery, 2026
- [Evaluation of a retinol containing topical treatment to improve signs of neck aging](https://pubmed.ncbi.nlm.nih.gov/37461826/) Glaucine · Journal of Cosmetic Dermatology, 2023
- [Nanocomplex of quaternized cyclodextrin grafted chitosan and hyaluronic acid for a skin delivery](https://pubmed.ncbi.nlm.nih.gov/36279763/) Hydrolyzed hyaluronic acid · Colloids and Surfaces. B, Biointerfaces, 2022
- [Clinical and histologic findings after use of a novel combined retinol, tripeptide, and glaucine containing cream in the treatment of photo-aged skin](https://pubmed.ncbi.nlm.nih.gov/37584260/) Glaucine · Journal of Cosmetic Dermatology, 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/it/brands/principia)
- Skincare: [MAËLYS](https://lovi.care/skincare/it/brands/maelys)

## More comparisons

- [SKIN1004 vs Principia](https://lovi.care/skincare/it/compare/skin1004-vs-principia)
- [SKIN1004 vs MAËLYS](https://lovi.care/skincare/it/compare/skin1004-vs-maelys)
- [Anua vs Principia](https://lovi.care/skincare/it/compare/anua-vs-principia)
- [Anua vs MAËLYS](https://lovi.care/skincare/it/compare/anua-vs-maelys)
- [Medicube vs Principia](https://lovi.care/skincare/it/compare/medicube-vs-principia)
- [Medicube vs MAËLYS](https://lovi.care/skincare/it/compare/medicube-vs-maelys)
- [The Ordinary vs Principia](https://lovi.care/skincare/it/compare/the-ordinary-vs-principia)
- [The Ordinary vs MAËLYS](https://lovi.care/skincare/it/compare/the-ordinary-vs-maelys)
- [Beauty of Joseon vs Principia](https://lovi.care/skincare/it/compare/beauty-of-joseon-vs-principia)
- [Beauty of Joseon vs MAËLYS](https://lovi.care/skincare/it/compare/beauty-of-joseon-vs-maelys)
- [COSRX vs Principia](https://lovi.care/skincare/it/compare/cosrx-vs-principia)
- [COSRX vs MAËLYS](https://lovi.care/skincare/it/compare/cosrx-vs-maelys)
- [CeraVe vs Principia](https://lovi.care/skincare/it/compare/cerave-vs-principia)
- [CeraVe vs MAËLYS](https://lovi.care/skincare/it/compare/cerave-vs-maelys)
- [La Roche-Posay vs Principia](https://lovi.care/skincare/it/compare/la-roche-posay-vs-principia)
- [La Roche-Posay vs MAËLYS](https://lovi.care/skincare/it/compare/la-roche-posay-vs-maelys)
- [Dr. Althea vs Principia](https://lovi.care/skincare/it/compare/dr-althea-vs-principia)
- [Dr. Althea vs MAËLYS](https://lovi.care/skincare/it/compare/dr-althea-vs-maelys)
- [Some By Mi vs Principia](https://lovi.care/skincare/it/compare/some-by-mi-vs-principia)
- [Some By Mi vs MAËLYS](https://lovi.care/skincare/it/compare/some-by-mi-vs-maelys)

## 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-maelys
- United Kingdom: https://lovi.care/skincare/uk/compare/principia-vs-maelys
- Ireland: https://lovi.care/skincare/ie/compare/principia-vs-maelys
- Germany: https://lovi.care/skincare/de/compare/principia-vs-maelys
- France: https://lovi.care/skincare/fr/compare/principia-vs-maelys
- Italy: https://lovi.care/skincare/it/compare/principia-vs-maelys (this page)
- Netherlands: https://lovi.care/skincare/nl/compare/principia-vs-maelys
- Spain: https://lovi.care/skincare/es/compare/principia-vs-maelys
- Canada: https://lovi.care/skincare/ca/compare/principia-vs-maelys
- Australia: https://lovi.care/skincare/au/compare/principia-vs-maelys
- Singapore: https://lovi.care/skincare/sg/compare/principia-vs-maelys
- Saudi Arabia: https://lovi.care/skincare/sa/compare/principia-vs-maelys
- United Arab Emirates: https://lovi.care/skincare/ae/compare/principia-vs-maelys