1, drugstore: agar is a general reagent, mostly used in laboratories and manufacturers.

2, online shopping: agar, as a common ingredient, is sold in major shopping sites, and can be easily purchased through search engines, Taobao and other shopping software.

3, large supermarkets: in large supermarkets, agar is usually placed in the baking materials area, together with cake flour, yeast and other materials. Additionally, agar can be purchased in food stores, baking material stores, and bio companies.