We lead skincare product development.
What Skincare Development
Has Been Missing
Skincare development is usually fragmented across labs and freelancers, with no single authority guiding it from start to finish.
Coseer changes that by leading development from first concept to finished product, bringing engineering rigour to every decision from strategy and formulation through to compliance and claims.
The result is one consultancy and one standard.
"I created Coseer to set a new standard for skincare product development."
Nadia Zarrouk
Co-Founder & Cosmetic Engineering Consultant
Meet Nadia Zarrouk
I am a French polymer engineer and a graduate of Arts et Métiers, one of France's grandes écoles. As the founder of Coseer, I lead skincare product development with strategic clarity, engineering precision and a steady hand, from first concept to finished product.
Behind every modern skincare formula is polymer science: how it feels, how it holds together, how it delivers its actives into the skin. That is my discipline and where Coseer's work begins.
My approach draws from two worlds. At Louis Vuitton, I held to the standard of a French maison, where heritage sets the bar and nothing that falls short is approved. At Ingrid Millet, I ran the operational backbone of the cosmetic lines, from sourcing through to market-ready products.
I built Coseer to bring that rigour, taste and discipline to skincare: one continuous arc from strategy to finished form, with the founder's vision held steady at every step.
French Provenance
Coseer is led from Paris. Rooted in the country that has shaped the standards of cosmetics for generations.
Coseer develops in partnership with French laboratories, chosen for their rigour, their craft and their ability to meet Coseer's standard. What begins in strategy is brought to form in laboratories that share it.
French rigour. French craft. International reach.
Leading the Next Era of Cosmetic Engineering
This is the next era Coseer leads. Built on French rigour, founder-led judgment and the discipline of one continuous arc.
The standard every Coseer product is held to. On every engagement, from first decision to finished form.
Start Your Project
Bring your product idea into structured development with Coseer.
Start Your Project