True sea moss

Is this product kosher? The ingredients look ok but it’s made from sea algae . It says vegan .its like a vitamin gel in diff flavors Do I have to be concerned if it could possibly contain traces of shellfish? Or is it kosher? Ingredients

Purified Water, Apple Juice from Concentrate, Dehydrated Sea Moss, Apple Puree, Cinnamon Powder, Lime Puree, Monk Fruit Juice Concentrate, Ascorbic Acid

This is the link

It’s OK