A marine polysaccharide from brown seaweed, studied broadly for antioxidant and immune-modulating properties.
Fucoidan is a sulfated polysaccharide extracted from brown seaweed, studied across a range of areas including antioxidant activity and immune modulation.
It's the second kelp-derived ingredient in Phytomem One, alongside fucoxanthin — again worth noting for anyone with a seaweed or iodine-related allergy or sensitivity.
As with several other ingredients here, most available research is general rather than specific to memory or cognitive performance.