use it to help retain moisture in cosmetics
use it as a bubble stabilizer and thickener in shampoo.
Skin care products use it as an emulsion stabilizer.
use it as a bonding agent in toothpaste
Sodium Alginate easily absorbs waters, many facial cosmetic products such as facial masks use it as a filmogen.
Finally, Sodium Alginate also helps to hydrate, soothe, and soften skin.