Regulatory Affairs Intern - Sept. 2026

Our Mission

Prose is truly custom hair and skin care made-to-order-just for you. Our line of custom products are made by an in-house, Paris-based R&D team of gifted chemists who combine natural ingredients in innovative ways alongside dermatologists, giving consumers clean skin care, hair care and impeccable results.

At the heart of Prose's success is Singular, its proprietary AI-powered beauty-tech platform, which has revolutionized personalized beauty at scale. Marrying a technology-driven approach with an apothecary-style concept, all Prose hair and skin care products are personalized to your one-of-a-kind hair, skin, goals and environment.

We're a company that wants to change beauty practices, so we're changing the way beauty companies practice. As a certified B Corporation, a Public Benefit Corporation and Climate Neutral, we're proving that good business is always sustainable. With Prose, there's nothing sacrificed to bring you great products-not trees, materials, wages, or performance.
Prose & Singular in Numbers

• Founded in 2017, with hubs in Paris, New York, and Los Angeles
• 10M+ consultations completed
• 2M customers and 350K active subscribers
• 21M custom products made, with 1M+ unique formulas
• 350+ team members across disciplines
• $600M+ in lifetime sales, with $165M+ revenue in 2024
• Profitable since 2024

Discover our Company Culture on Welcome to the Jungle here

Discover our Company Mission & Vision in video here
Job Summary

Prose is a certified B Corp personalized cosmetics brand, committed to formulating products that are safe, effective, and compliant with the strictest regulatory requirements. As part of the strengthening of our Scientific & Regulatory Affairs team, we are looking for a rigorous and motivated intern to join our team based in Paris.

You will report directly to the Regulatory Affairs Manager within the Scientific Affairs team, and will work closely with the R&D, Scientific Affairs, and Sustainability teams.

Key responsibilities

• Regulatory monitoring: help track regulatory developments (EU, US and state-level, Canada and province-level) to ensure our ingredients, packaging, and finished products comply with current regulations, including regulations and recommendations related to sustainability topics (EPR, eco-design, etc.), and flag to the team any changes likely to impact our formulas.
• Raw material qualification: help collect and analyze ingredient data to ensure their quality, safety, and compliance with regulations as well as with Prose's qualification charter, in coordination with the R&D and Purchasing teams.
• Claims substantiation files: contribute to updating the substantiation files for our product efficacy claims.
• Maintaining Product Information Files (PIFs): assist in updating PIFs in accordance with European Cosmetics Regulation (EC) No 1223/2009, by collecting and organizing the required documents (safety reports, CPSRs, labeling, etc.).
• Product database updates: keep our database up to date with the latest regulatory data (compositions, ingredient statuses, labeling), as well as actively monitor the certification status of our raw materials (Cosmos and other relevant standards), regularly checking compliance with suppliers and updating the database accordingly. This database serves as a cross-functional foundation that feeds into numerous strategic projects, such as B Corp certification or EPR declarations.
• Development and tracking of regulatory and scientific KPIs: contribute to defining and tracking key performance indicators (KPIs) relevant to our regulatory activities and certifications (B Corp, Cosmos, EPR, etc.) to give the team a clear view of our compliance level, as well as to identify opportunities for improvement and engagement.

Candidate profile

• Currently pursuing a Bac +5 level degree (Master's/Engineering) in a relevant field: Cosmetic Sciences, Health Product Regulation, Pharmacy, Chemistry, or equivalent.
• Rigor, attention to detail, and strong organizational skills.
• Comfortable with AI tools (such as Claude, Elicit, Gemini)
• Curiosity about the regulatory environment and knowledge of the cosmetics regulatory landscape.
• Autonomy, proactivity, and the ability to manage multiple topics in parallel.
• Proficiency in French and English (spoken and written).
• Excellent interpersonal skills and intercultural sensitivity.

Prose Values

Intentional Inclusivity

• We know the best ideas come from open minds and willingness to listen. While our products cater to the individual, an invitation into our process is always open to our community.
• We value our differences and diverse backgrounds by communicating openly, managing with transparency and striving to understand one another's perspective. It's a key ingredient to our innovation.

Connected Collaboration

• Our strength as a group will outlast our efforts as individual contributors. With offices across countries, staying inventive and agile deepens our clear vision and consistent communication.
• We stay in a spirit of entrepreneurial collaboration: We do not have consensus at all times, but we trust one another to work toward our common goals. Our success is an expression and result of our progressive and gratifying teamwork.

Driven, Together

• We value ownership and coaching that encourages employees to think constructively and creatively about the business. We view employees as leaders and individuals who are accountable, resourceful and responsible. Anyone and everyone is encouraged to lead.
• We recognize that in order to continue thinking one step ahead, we will need to try new things. We strive to provide an open environment that accepts this truth, making space for new ideas to emerge.

Humanity Always

• We assume good intentions in every interaction, keeping ourselves accountable for the climate we create. We seek to understand our co-workers through this lens of conscious benevolence, authenticity and fellowship.
• We operate with the intention of preserving resources, creating an environment we can all live in - for our business and the world. Sustainable care is essential to our ethos as an organization. We take a mindful approach to how we think about our people (employees) and our planet.