Fujimura T, Tsukahara K, Moriwaki S, Kitahara T, Sano T, Takema Y. Biological Science Laboratories, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga-gun, Tochigi 321-3497, Japan.
Recently the researchers found that an extract of Fucus vesiculosus, which is a type of seaweed, promotes the contraction of fibroblast-populated collagen gels through increased expression of integrin molecules. In this study, they investigated the effects of topical application of an aqueous extract of this alga on the thickness and the mechanical properties of human skin. A gel formulation that included 1% of the extract was applied topically to human cheek skin twice daily for five weeks. A significant decrease in skin thickness measured by B-mode ultrasound was elicited, as was a significant improvement in elasticity measured with a Cutometer as compared with controls. In cheek skin, the thickness normally increases and the elasticity usually decreases with age. These results suggest that the Fucus vesiculosus extract possesses anti-aging activities and should be useful for a variety of cosmetics.
Fucus vesiculus has been known for other salinet properties on the skin, amongst them, inhibition of growth on melanoma cells can be named. Fucus vesiculus exerted this response via activiation of caspases and induction of apoptosis.
Another study insinuates use of this ingredient for treatment of cellulite. Fucus vesiculus has been formulated in a mixture with retinoids to promote collagen synthesis by induction of procollagen to correct lipolysis implicated in cellulite formation.