Macrocystis pyrifera, the amber giant of the kelp forests, is the most romantic of seaweeds.
Its blades adorn advertisements for high-end hand cream, and it’s not a gimmick. Seaweed derivatives, such as the phycocolloid called “alginate,” made from the cell walls of Macrocystis, have long been the emulsifying agent in skin-care products.
But today, seaweed in toto is used as the active ingredient in many health-enhancing body lotions.
Pictured: Macrocystis pyrifera (Giant kelp)