Hi Matheus,

You may make an inquiry at Alfa Chemistry, they offer kinds of good-quality chemicals.

https://www.alfa-chemistry.com/inquiry

There are a plenty of supplier, just Google. Lancaster, Fluka, Pierce, Fisher, Alfa-Aesar, etc. Some of them are merged but still you can get the suppliers, Good to check your local/national supplier first since you looking to test first, request a sample!

Dear Matheus Augusto de Castro thank you for your interesting technical question. I assume that to would be advantageous when you can buy the sodium hyaluronate from a supplier in your home country Brazil. For a potentially useful overview please have a look at the following list:

List of Sodium Hyaluronate Importers in Brazil

https://www.exportgenius.in/brazil-importers-of-sodium-hyaluronate

I hope this helps.