Apprenticeship (Master level) - Formulation and Performance Evaluation of Ingredients for Haircare

Syensqo is all about chemistry. We’re not just referring to chemical reactions here, but also to the magic that occurs when the brightest minds get to work together. This is where our true strength lies. In you. In your future colleagues and in all your differences. And of course, in your ideas to improve lives while preserving our planet’s beauty for the generations to come.

Role Overview:

• Our future work-study student (apprentice) currently pursuing an Engineering degree or a Master’s degree in Chemistry, who will join the Haircare team within our Home and Personal Care (HPC) laboratory at the R&I Center in Aubervilliers (93).
• The successful candidate will be responsible for formulating and evaluating the performance of ingredients used in haircare product compositions (shampoos, styling products, etc.).
• You will work on developing new ingredients to expand Syensqo’s portfolio, on the physico-chemical characterization of formulations (appearance, viscosity, pH, stability), and on setting up appropriate performance evaluation methods through various in vitro/in vivo application tests.

We Count on You To:

• Analyze the state of the art and conduct literature research.
• Carry out laboratory trials, formulate, and understand the impact of ingredient combinations on observed performance.
• Test, characterize, and evaluate performance using application tests (sensory analysis and instrumental evaluation on hair).
• Contribute to the development of evaluation methods tailored to project needs.
• Explore and propose innovative solutions.
• Deepen understanding of innovative ingredient formulation.
• Present and summarize results obtained and collaborate with the different project stakeholders.
• Work in compliance with HSE rules.

You Can Count on Us For:

• Joining a dynamic, multidisciplinary team.
• Developing expertise in haircare product formulation.
• Understanding and mastering different methods for evaluating hair performance (IN VITRO tests: sensory analysis, instrumental tests; and IN VIVO tests in a hair salon).
• Being involved in strategic projects promoting more environmentally friendly raw materials for the cosmetics industry.
• Contributing to the development of the Haircare segment at Syensqo.

You Will Bring:

• Enrollment in an Engineering program or a Master’s degree in chemistry / physical chemistry / formulation.
• Initial experience/knowledge in formulation or performance evaluation in personal care (sensory/instrumental/biological) or in materials science is a plus.
• Interest in developing a detailed understanding of how ingredients contribute to final formula performance.
• Strong analytical skills and initiative.
• Team spirit and a collaborative mindset.
• Proficiency in English (spoken and written).

You Will Benefit From:

• Competitive salary and benefits package.
• The reasonably expected monthly base salary for this position ranges from €1,100 to €2,000. Compensation will be determined based on factors such as the type of contract, age, and level of education, and may ultimately be higher or lower than the stated salary.
• Training platform available to all employees.
• Access to the company restaurant.
• Access to the site gym.
• An employee committee (CE) and other services are also available.

Additional Information

• Location: Paris R&I Center, Aubervilliers (93)
• Start date: from September 2026
• Duration: preferably 2 years

About us

• Syensqo is a science company developing groundbreaking solutions that enhance the way we live, work, travel and play. Inspired by the scientific councils which Ernest Solvay initiated in 1911, we bring great minds together to push the limits of science and innovation for the benefit of our customers, with a diverse, global team of more than 13,000 associates. Our solutions contribute to safer, cleaner, and more sustainable products found in homes, food and consumer goods, planes, cars, batteries, smart devices and health care applications. Our innovation power enables us to deliver on the ambition of a circular economy and explore breakthrough technologies that advance humanity.
• At Syensqo, we seek to promote unity and not uniformity. We value the diversity that individuals bring and we invite you to consider a future with us, regardless of background, age, gender, national origin, ethnicity, religion, sexual orientation, ability or identity. We encourage individuals who may require any assistance or accommodations to let us know to ensure a seamless application experience. We are here to support you throughout the application journey and want to ensure all candidates are treated equally. If you are unsure whether you meet all the criteria or qualifications listed in the job description, we still encourage you to apply.

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