Summary: | Seaweeds are receiving much attention as a rich source of bioactive compounds with cosmeceutical potential. Recent studies have revealed that <i>Sargassum</i> spp., a genus of brown algae in the family Sargassaceae, has multiple functions in preventing and improving skin aging. <i>Sargassum</i> spp. contains many bioactive compounds, such as fucoidan, fucoxanthin, terpenoids, flavonoids, and meroterpenoids. These <i>Sargassum</i> spp. extracts and derivative compounds have excellent potential for skincare, as they exhibit skin health-promoting properties, including antioxidants, anti-inflammation, whitening, skin barrier repair, and moisturizing. Therefore, searching for bioactive compounds in marine resources such as <i>Sargassum</i> spp. could be an attractive approach to preventing and improving skin aging. The current review focused on the various biological abilities of <i>Sargassum</i> extracts or derived compounds for anti-skin aging.
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