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". (It is also compared to a multicolour sea diamond.) This iridescence results from the presence of a dynamic, three-dimensional opalescent system, similar to that of the chameleon, another wonder of nature. Iridescence may help develop photoprotection in this seaweed through the activation of defence mechanisms which allow it to cope with the stress caused by exposure to light.
Skincare Benefits of Organic iridescent cystoseira seaweed extract
Organic iridescent cystoseira seaweed extract increases oxygen consumption in keratinocytes, thus helping to revive the skin’s radiance. It also improves overall skin pigmentation and helps to reduce the appearance of dark spots.
Responsible sourcing
Iridescent cystoseira is harvested off the coast of the Côtes-d'Armor in Brittany, France, in water several dozen centimetres deep. To minimize waste and encourage regrowth, only part of the seaweed shoots are cut by hand with a knife, taking care to leave behind the holdfast and perennial part of the seaweed and not scrape the rock with a tool.
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