Agar-agar is a natural, plant-based product with no odor or foreign taste, derived from certain types of seaweed. It is the best alternative to gelatin.

In the food industry (food additive E406), agar is used in confectionery products (such as marmalade, marshmallows, gummy candies, fillings, and soufflés), diet foods (jams and preserves), and ice cream.

Agar is also used as a nutrient medium for laboratory cultures.