6-MONTH INTERNSHIP – Starting January 2027 – Formulation (in Lassigny) – Master’s ½ – €1700/month

6-MONTH INTERNSHIP – Starting January 2027 – Formulation (Lassigny) – Master’s Year 1 or 2 – €1,700/month
Life is too short for a boring career!
At L’Oréal Groupe, no two days are the same. Here, creativity is a superpower that turns every idea into impact.
We believe our workplace should be as inspiring as the projects we take on. Across the Group, our divisions and our brands—internationally and in France—the opportunities to learn, innovate and grow are endless.
Why join L’Oréal?
88% of our interns are proud to work at L’Oréal.
87% would recommend L’Oréal for an internship. (Internal satisfaction survey – June 2026)
Ready for an experience that will make a difference?
Your responsibilities
Develop knowledge of raw materials
Work on formulation and apply physico-chemical knowledge
Carry out sensory and colour assessments
Conduct scientific monitoring, including stability testing, characterization and results analysis
Show curiosity about products, an interest in makeup trends and a sensitivity to eco-design
Your profile
You are currently pursuing a Master’s degree (Year 1 or 2) at an engineering school and are looking for a gap-year or final-year internship, with a specialization in formulation.
You are fluent in English and French.
You have excellent Excel skills.
You are comfortable using data visualization tools such as Power BI or Tableau.
You enjoy analyzing data.
Our AI Charter: our commitment
Innovation has been part of our DNA for more than 110 years. Today, AI is accelerating innovation in areas such as skin biotechnology, the development of new connected devices and creative tools like CreAItech.
As we shape the future of beauty, we see AI as a powerful co-pilot, guided by one firm belief: technology must remain at the service of people. We are also mindful of AI’s broader implications. L’Oréal carefully assesses the social, environmental and societal impact of its AI systems and works to reduce any potential or actual harm. This commitment reflects our wider belief that economic and environmental performance go hand in hand.
To learn more about how we use AI, click here.
Your benefits
Compensation: €1,700 gross per month
Transportation: 75% of transport costs covered
Remote working: One day per week
Time off: One day per month
Additional benefits at L’Oréal Groupe
Access to the L’Oréal Learning Platform to develop your skills
Employee discounts
Friends & Family sales
Depending on the campus: gym, concierge services and more
Recruitment process
Recruiter interview – 30 minutes: An opportunity to introduce yourself and learn more about L’Oréal Groupe and our opportunities.
Meeting with your potential future manager – 45 minutes: A discussion about the role and its responsibilities.
About L’Oréal Groupe
Join L’Oréal, the world’s leading beauty company, present in more than 150 countries, with a portfolio of 37 international brands across four divisions: Consumer Products, Professional Products, Dermatological Beauty and Luxe.
At L’Oréal, we create beauty that acts, inspires and brings people together. Our mission is to shape the future of beauty by combining the best of technology, science and natural inspiration, and to offer everyone inclusive, responsible and forward-looking beauty.
As a leader in the beauty industry, we believe in equal opportunity and diversity, and we consider every application.
Whatever your gender identity, sexual orientation, visible and/or invisible disability, social or cultural background, health status, age, religion or any other characteristic that makes you unique, our teams will carefully review your application.

View and apply on the employer website