Blue spirulina vs spirulina extract: what a pouch, a bag and a drum actually contain
The same molecule is sold as a superfood in a 30 g pouch, as a colouring food in a 25 kg bag and as a pharmaceutical reagent in a vial, at prices a hundredfold apart. Here is what changes between them, why the pouch says nothing about the bag, and what the retail surveys found in the pouch.

