The origin of hyaluronic acid

Hyaluronic acid was first found in particular parts of animals in 1930's.

1st generation : extracted from a particular part of cow

2nd generation : extracted from a particular part of chicken

3rd generation : strain (microorganisms) culture method

What is strain culture method? (science+technology)

The strain culture method is a scientific triumph that is achieved by recent development of biotechnology,
and molecular weight and purity are higher than conventional raw materials with excellent safety.