Iridescent cystoseira

Organic iridescent cystoseira seaweed extract

INCI name:

Cystoseira tamariscifolia extract

Part(s) used:

All plant parts

Organic Farming

The power of plants

This remarkable seaweed is harvested in Brittany, France, on the Côtes d'Amor. It grows in a protected ecosystem and is harvested by hand according to responsible harvesting methods. It has a surprising feature: when outside the water at low tide it is a green/brown colour but becomes an iridescent blue once it is submerged. Hence, it is also known as "rainbow wrack". This iridescence results from the presence of a dynamic, three-dimensional opalescent system, similar to that of the chameleon, another wonder of nature. Taking inspiration from the capacity of this seaweed to capture the sun's rays to activate its own photosynthesis, and protect itself from microorganisms thanks to the biosynthesis of polyphenols, Clarins Research has demonstrated that organic iridescent cystoseira extract helps to reduce the look of dark spots and revive the skin's radiance.

Skincare Benefits Organic iridescent cystoseira seaweed extract

In cosmetics, organic iridescent cystoseira extract helps to reduce dark spots and revive the skin's radiance, its hydrating action contributes to radiant skin.

Responsible sourcing

Protecting the soil and biodiversity is a longstanding commitment at Clarins. To minimize waste and encourage regrowth, the seaweed shoots are cut manually with a knife, taking care to leave the holdfast and perennial parts of the seaweed and avoid scraping the rock. The seaweed is then transported to the processing site, located around 15 minutes away, to be pre-wilted on drying racks and naturally dried.