Bird's Nest White Fungus Drink?

After seeing Bird's Nest White Fungus drink in Cambodia and not buying it I was really worried I might have lost my chance to try it but Vietnam came through for me.

We are staying with Thomas in Saigon who we met in Thailand right now and his apartment building convenience store conveniently has "Bird's Nest White Fungus Drink", booya.
The ingredients read: Water, Sugar, White Fungus, Agar, Sodium Bicarbonat, Bird's Nest and Flavour.
Wow you can really taste the flavour and it's economical.