Ecklonia kurome ( (kurome), ) is a brown alga species in the genus Ecklonia found in the Sea of Japan.
The phlorotannins eckol, phlorofucofuroeckol A and 8,8'-bieckol can be found in Ecklonia kurome.
An oligosaccharide extract from Ecklonia kurome called is approved in China for the treatment of Alzheimer's disease, but the evidence is highly dubious.