The sea is an incredible garden that is perfectly balanced by nature, and where our story and history begin. This wonderful haven of health contains minerals, trace elements, vitamins and amino acids: all the ingredients we need for enhancing the natural beauty of women and men.


THALION’s story began with a Breton family driven by the same passion for the sea and the treasures contained within it: two generations inspired by the authentic and natural beauty of their region.

Although methods have been modernised, here at THALION we have kept the seaweed tradition alive for over 25 years. We remain faithful to our founding principles: to provide innovative, high performance products and marine treatments, while protecting the delicate balance of the marine ecosystem.



At THALION, we are Harvesters, Producers and Distributors simultaneously. Our integrated model is the only one of its kind in the marine cosmetics industry.
We are located metres from the sea, right next to the resources. Each day, we work to the rhythm of the seasons and tides. We harvest the seaweed by boat or by hand depending on the species, and in perfect harmony with our code of ethics:
Strict selection of species
Respect for harvesting areas to allow for seaweed reproduction.
Fallow areas for seaweed regrowth
Optimisation of harvesting periods according to the required active ingredients


Did you know?

1/3 of France’s coastline
is in Brittany.
The marine biodiversity here is
the richest in Europe,
and notably it is home to over
800 species of macro-seaweed.
90% of France’s seaweed harvest
is carried out in Brittany.

Our Laboratories are at the heart of the Iroise Sea, a UNESCO World Biosphere Reserve which contains the very best seaweeds and harvesting areas.
Plouguerneau is home to unspoilt nature and a long seaweed tradition. Its waters are exceptionally pure and its marine biodiversity impressive. It is from these waters that we collect seaweed, drawing active ingredients straight from the sea. These contain extraordinary properties that enhance the skin and revitalise the body.


Drawing inspiration from the nature around us

Our researchers make a daily commitment to gaining a better understanding of the marine world’s biodiversity and ecosystems, in order to uncover its benefits. Our teams identify the most active ingredients for achieving healthy, happy skin.
Seaweed is incredibly resourceful, developing impressive defence systems in order to withstand and survive extreme conditions. From our research, THALION devises unique technologies that optimise the composition and concentration of marine ingredients. This enables us to create brand new active ingredients in our Laboratories each year, making our products ever more effective


Seaweed, seawater and seaside plants are true life sources. They constitute THALION’s pillars of research and are at the heart of our formulas.

Our skin shares particular similarities with the original sea environment. Seawater and plasma are, in fact, both made up of minerals and trace elements. This affinity enables our cells to naturally collect and absorb all the benefits of this environment in a harmonious way.
THALION marine cosmetics are expert cosmetics which combine a knowledge of nature with scientific research. Our two R&D laboratories carry out two branches of complementary research:

Advanced study on the raw materials and active ingredients.

Formulation of end products with innovative galenic forms.

Our mission
To guarantee all our products are effective and safe. We demand 100% quality.

Our promise
To enhance the skin in a natural, healthy and responsible way.



Thalion research in short:
100% of the active ingredients developed in our Laboratories come from the marine environment.
Our exclusive marine active ingredients (e.g. Thalasso Oligo, Oligosource, Thalisource, etc.) have been developed as a result of our unique technological know-how.
Ingredients are patented by the French National Centre for Scientific Research through an ongoing innovative programme.

With our cutting-edge cosmetics from the sea expertise, our duty is to keep ahead of emerging trends, and to pave the way for innovation. Each day, our teams pour all their energy and passion into serving the brand. Being pioneers in seaweed optimisation, researching high-performance active ingredients and developing new galenic forms is what drives us.

Patented marine active ingredients:
Concentrated active ingredient which reduces the rate of triglycerides in the fat cells by 29% to target unwanted curves and eliminate fat.
72®Genuine booster of collagen synthesis (+72%) for plumper, firmer skin.
Balances cell osmosis to protect the skin against dryness and environmental stresses caused by temperatures, pollution and UV.
Active ingredient which lowers melanin production (-25%). Dark spots fade and the complexion is radiant.
Has a triple effect: reinforces the skin’s natural barrier, fights skin ageing and improves tone.