Laminaria japonica, or Saccharina japonica, is a species of edible seaweed. It is one of the seaweed species used to prepare Kombu – a Japanese edible kelp that is a staple in East Asian cuisine. It is also used to extract alginates – a gelatin substitute that comes from algae.
The extract from Laminaria japonica contains many different polysaccharides which are able to form a moisturizing film on the skin’s surface.
Another type of seaweed polysaccharide (called fucoidans) has recently attracted some scientific attention and seems to have some skin whitening properties.
Science
1
http://www.seaweed.ie/algae/laminaria.php
2
Chen, Q., Kou, L., Wang, F., & Wang, Y. (2019). Size-dependent Whitening Activity of Enzyme-degraded Fucoidan from Laminaria japonica. Carbohydrate Polymers, 115211.
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