I’m Vietnamese, and I can confirm there are plenty of sources for raws and peptides — but also many greedy scammers. It’s embarrassing to say this about my own people, but you really have to be careful. A LOT of them only care about making money, not the quality, and they won’t feel bad sending out bad products if it means they profit. If you’ve found a reliable source, it’s better to stick with them.
I lived in Vietnam for half of my life, and I’ve seen this kind of thing happen all the time even to the Vietnamese people in Vietnam. A lot of celebrities in Vietnam ended up in jail because they selling products that have nasty shit in it and they didn’t care at all. It’s best to get them tested.
Everything is extremely cheap in Vietnam, and people can make a fortune when they get paid in U.S. dollars. Honestly, $1 can buy you a whole big meal over there. Because of that, a lot of people get sloppy with quality just to make quick money.