Do you believe this blue water bottle costs ... VND 300 million / liter?

What does it contain inside that sky-high price? Alien's blood?

What is this expensive thing?

Do you believe, the water bottle in the picture below cost up to 300 million VND / liter?

What is the strange blue water inside?

In fact, it is the blood of the horseshoe crab, also known as the American Sam - which is considered one of the most precious resources in the world.

So why are they so expensive? And what do people buy them for? The answer will be answered by the scientists in the video below.