Costomise was born from the meeting of two driven, complementary personalities, convinced that by pooling their skills, you formulate cosmetics that are kinder to people and to the planet.


Costomise is first and foremost a French cosmetics creation laboratory based in Marans, near La Rochelle. Our purpose: to bring help, expertise and support to everyone who creates cosmetic products and to those who want to build their own brand.
Whether you have your first product in mind or want to broaden an existing range, Costomise adapts entirely to your needs and to how far your thinking has come.
We founded Costomise because we are convinced that by pooling our skills (formulation and creativity on one side, planning, supply chain and quality on the other) we obtain products that are ever more respectful of people, the environment and the planet.
It is our values that drive us to offer solutions committed to a sustainable approach: organic or natural cosmetics, recyclable materials, local sourcing, made in France.
Twenty years of natural and organic formulation on one side, planning, supply chain and quality on the other. The shared ambition: a laboratory that truly supports its clients.
Near La Rochelle, a human-scale creation and production facility, designed for brand creators and established brands alike.
In 2022, Christèle joined the laboratory on a work-study placement during her master's in cosmetics engineering. She now formulates alongside the two founders.
Brands supported across every cosmetic universe, ISO 22716 good manufacturing practices, and the same conviction as on day one: closeness, teaching, truth.
A direct link, from the first conversation to delivery: we stay attentive to what you want and do everything we can to answer it precisely, today as on day one.
We have always taken it to heart to pass on our know-how and our values, in a genuine relationship of listening and co-construction - with first-time creators as with established brands.
Our transparency has never wavered: the origin of materials, ingredients and packaging is always laid out for you, so we can build the best solution for your budget.
The laboratory was born near La Rochelle and still works there: local sourcing, made in France and recyclable materials remain the foundation of natural, organic and respectful cosmetics.
Behind this story are three people who support every project from the first conversation to delivery. Meet the people who will formulate your products.
Meet the team