help with choice of raw material

Guys,
I'm getting ready to make my first homebrew. I am researching the best laboratory to buy the raw material. If someone can show some quality lab, I would be very grateful. Already got in touch with some Chinese laboratories: Hugeraw Health Tecnology, Guangzhou Quanao Chemical Co., Ltd, Landmark Life Science & Technology Co., Ltd. Have you ever heard of any of these?

Welcome to MuscleChemistry.com. I have no idea but bumped for answer.

I have heard bad things about Landmark Life Science & Technology Co but no blue on the others good luck in your search also i don't think anyone is going to give you info but i could be wrong time will tell

Welcome to MC. No one is going to give you an answer. Do your own research.

Seen mixed reviews on Landmark. whoever you choose, make a small test order first and play it safe