Our Commitments

At L’Oréal Paris we create advanced, effective and safe skincare, tested on women including those with sensitive skin. From our tolerance–testing methods to our independent performance studies, you can be sure our scientific teams put all their scientific knowledge and passion to develop skincare that works for all. Because when we say "you're worth it", we really mean it.

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Ingredients Library

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We Are Committed To Your Safety

Our consumers place their trust in us to offer only products whose safety has been thoroughly evaluated and quality ensured. We never forsake that trust.


All of our ingredients and products undergo rigorous safety evaluations
before they are placed on the market.

You can trust L’Oréal Paris skin care, because we are committed to the highest level of safety for your skin.

Behind each product the mission of no less than 100 scientific experts is to screen each formula to eliminate any undesirable or harmful substance. They calculate their optimal dosage and divide it by safety factor 100 to take into account cumulative application of different products, but also check the entire environment to avoid any mismatch. Before going through clinical safety tests, we also test our ingredients or formulas on reconstructed skin.

When we are sure that we have reached a maximum degree of security, our product are tested by independent dermatologists. Skincare product tolerance is evaluated on all skin types, including sensitive skin, and tested under dermatological control with a minimum of 600 applications. These tests include large panels of volunteers and several skin types including sensitive skin.

Our commitment to safety does not stop there, as the Group has also adopted the most advanced technologies to develop a predictive evaluation platform that allows us to ensure products safety and efficacy. In addition to this, a worldwide scientific watch and our practice of listening to our consumers helps us to take into account and to consider these also when deciding to reduce or to remove certain ingredients. This allows the continuous improvement of all our formulas even after their launch and is the key to guarantee you the highest level of safety.

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We Are Commited To Proven Efficacy

The Science of Formulation

The L’Oréal Paris skin care laboratory is fully dedicated to the formulation of safe and efficient L’Oréal Paris formulas.

All the team members are scientifically trained (either biology, pharmacy and biochemistry or chemistry) and are passionate about their work.

This range of disciplines is a constant asset when it comes to exchanging with our many partners during the creation process for a product, right up to the point where it reaches our consumers. Our scientific teams provide expertise on actives and skin physiology, applied research on formulation science, analysis, microbiology, chemical physics and assessing performance.

The Marketing team ensures that the product meets consumer needs, and the Industry enables us to guarantee the quality of our products manufactured in large quantities. It is worth remembering that, before a formula reaches the shops, more than 100 experts will have been involved in its creation!

Frequently Asked Questions

How do L’Oréal Paris create best performing formulas?

First of all, a formula is a complex combination of actives that interact with other ingredients. They must be preserved in such a way that they stay stable to achieve optimum effectiveness. Our unique know-how involves calculating the dosage of these actives with one requirement in mind: Create the most safe, performing, unique and sensorial cosmetics products in line with the brand’s signature.

The process includes several steps. We start with careful selection of actives and ingredients, then we formulate around their constraints in order to create the most innovative textures. We then turn them into a cosmetic product that will impress the consumer with its sensoriality and effectiveness.

Our responsibility is to ensure that each product reaches our consumers with strong evidence of its performance, safety and quality criteria.

How do L’Oréal Paris evaluate the performance of their products?

Performance has always been a very important criteria before deciding to launch a new formula. At the same time as the skin care department was created in the 70s, a specialized department focused on performance evaluation methods was created at L’Oréal.

Ever since, our researchers relentlessly work to develop skincare products with better performance, integrating formulation technologies and actives with proven efficacy through in-vitro and in-vivo tests, instrumental biophysical methods, and clinical tests conducted by independent institutes.

To progress, any scientific, medical or technical discipline requires reliable and relevant measuring tools to characterise and describe the starting point of the studied populations.  These tools are essential for researchers and specialists to estimate the performance of the actions they undertake. The Skin Atlases were developed and published by L’Oréal experts to objectively compare the effects of the products and treatments they develop using the same evaluation criteria whoever the assessor for each continent.

Are there cultural differences in expectation when it comes to formulations?

Each region of the world has its own cultural and climatic characteristics, so women who also have different skin types, express different needs. For example, in Asia, skin aging is mainly expressed through hyperpigmentation, while in Europe, wrinkles are the first signs of aging.

This is why we have set up L’Oréal Paris formulation laboratories in different regions of the world: Europe, North and South America, Japan, China, India, and Africa. They aim to adapt or create formulations that work specifically for the consumers in that area, which is great for everyone! These exchanges and collaborations with our laboratories around the world are a huge source of inspiration for our innovations.

What environmental challenges do you face when creating a product?

The challenge is to innovate. In other words, to come up with new solutions for women by integrating recent scientific data and knowledge about skin and ingredients, meanwhile ensuring that we combine L'Oréal Group’s environmental and societal objectives with the product’s performance and quality. We always take into account the impacts of active and raw materials we use and their origins.

SPOT (Sustainable Product Optimization Tool) is a unique and innovative evaluation tool developed by L’Oréal in order to assess the overall footprint of a cosmetic product. SPOT’s methodology is the first in the industry to quantify the social and environmental performance of all our products across every aspect of the product life cycle.

SPOT is the result of the collaboration of diverse L’Oréal teams – Sustainability, Packaging and Research – in partnership with international external experts. It was implemented across all L’Oréal brands in 2017 and is now completely integrated in the design and launch process for all our new products. Find out more here.

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We Are Committed To Animal Welfare

L’Oreal has been committed to a world without animal testing for more than 30 years.

L’Oréal does not test any of its products or ingredients on animals. We have been at the forefront of alternative testing methods for over 30 years.

Our consumers’ health and safety have always been an absolute priority for L’Oréal - as is the support of animal welfare.

The question of animal testing was raised by civil society or within a regulatory framework in the 2000's. Well before that time, L’Oréal developed alternative methods based on a unique technology: the reconstruction of human skin, followed by other kind of structures such as cornea or other mucosae. 

A true pioneer, L’Oréal has been reconstructing human skin models in laboratories since 1979. Then, these methods have been endorsed by competent Authorities. Other tools were created allowing to elaborate authentic integrated strategies of safety evaluation as an alternative to animals. In 1989, L’Oréal completely ceased testing its products on animals, thus 14 years before the regulation required so.

Frequently Asked Questions about Animal Testing

Does L’Oréal test on animals?

L’Oréal does not test any of its products or any of its ingredients on animals. It has been at the forefront of alternative methods for over 30 years. In 1989, L’Oréal completely ceased testing its products on animals, thus 14 years before the regulation required so.

What alternative methods to animal testing has L’Oréal developed?

Since 1979, L’Oréal has been reconstructing human skin models in laboratories to elaborate safety tests in vitro that don’t involve animals. The Group has thus been at the forefront of alternative methods for safety evaluation. Since then, L’Oréal has opened Episkin centers* in Lyon (France), Shanghai (China) and Rio (Brazil) where reconstructed skins are produced. Besides reconstructed skin models, L’Oréal has a large set of tools as part of its predictive evaluation, that does not involve animals, such as molecular modeling, expert toxicology systems, imaging techniques, and many more.

To learn more about predictive evaluation click here.

If you don’t test products on animals, why is L’Oréal still on the PETA list of companies who test?

Since 1979, L’Oréal has been reconstructing human skin models in laboratories to elaborate safety tests in vitro that don’t involve animals. The Group has thus been at the forefront of alternative methods for safety evaluation. Since then, L’Oréal has opened Episkin centers* in Lyon (France), Shanghai (China) and Rio (Brazil) where reconstructed skins are produced. Besides reconstructed skin models, L’Oréal has a large set of tools as part of its predictive evaluation, that does not involve animals, such as molecular modeling, expert toxicology systems, imaging techniques, and many more.
To learn more about predictive evaluation click here.

So why are you still present in China?

Since 1979, L’Oréal has been reconstructing human skin models in laboratories to elaborate safety tests in vitro that don’t involve animals. The Group has thus been at the forefront of alternative methods for safety evaluation. Since then, L’Oréal has opened Episkin centers* in Lyon (France), Shanghai (China) and Rio (Brazil) where reconstructed skins are produced. Besides reconstructed skin models, L’Oréal has a large set of tools as part of its predictive evaluation, that does not involve animals, such as molecular modeling, expert toxicology systems, imaging techniques, and many more.

To learn more about predictive evaluation click here.

What actions are being implemented by L’Oréal to put an end to animal testing in China?

For more than 10 years, L’Oréal has been committed to working alongside Chinese authorities and scientists to have alternative testing methods recognised and enable the cosmetics regulation to evolve towards a total and complete cease of animal testing. Thus, today the majority of our products manufactured and sold in China called “non-functional” (without any biological activity) are no longer tested on animals. These “non-functional products include skincare, make-up, and shampoo. We have opened an Episkin* Center in Shanghai in 2014 enabling us to produce reconstructed skins. These skins are used for in vitro safety tests that do not involve animals and are made available for Chinese authorities.
*Episkin is a reconstructed human skin model
 

L’Oréal does not test any of its products or ingredients on animals and has been at the forefront of alternative methods.

Nevertheless, certain health authorities may decide to conduct animal testings themselves for certain cosmetic products, as it is still the case in China. L’Oréal has been the most active company working with Chinese authorities and scientists over the last 10 years to have alternative testing methods recognised, and enable the cosmetic regulation to evolve towards a total and definite elimination of animal testing.

Since 2015, the majority of our products manufactured and sold in China, like all our non-functional skincare (without any biological activity), are no longer tested on animals.

Since the 1980s, L’Oréal has believed that the future of safety evaluation depends on the development of alternative, “predictive” strategies to end animal testing. This approach has been built thanks to the substantial scientific progress made in the fields of human reconstructed skin models, molecular modeling and high-performance data processing. It’s been twenty-seven years since our top expert scientists created the first reconstructed human epidermis: an international revolution! This meant animal testing could be stopped as soon as 1989, 14 years before it was legally required and without making our products any less safe. Our alternative and predictive assessment models are supported by the international scientific community as “toxicology of the 21st century”.
It shows our laboratories’ efforts and expertise, and fuels our innovations.

Tissue engineering is the production of reconstructed human tissue, and others such as skin mucous membranes or cornea. L’Oréal uses this advanced technique to test the effects of new molecules and scientifically predict their beneficial effects (filtering out sun rays, combatting skin aging, etc.) or harmful effects (irritations, allergies, disturbances to the hormone system, etc.).
Various reconstructed skin model exists. They can be used to test active ingredient molecules, either alone or by associating them together. L’Oréal uses these models to understand how the molecules will react on certain skins and thus predict its efficacy even before the molecules are integrated into the final formula of a cosmetic product.