Betagen cultured milk is produced using a selection of high quality raw material. Made by fermentation with probiotics and live Lactobasillus Casei in milk until it gets that sour / acidic taste, it gives consumers tremendous benefits not only from high quality fermented milk but also from good microorganisms. The No. 1 Cultured Milk in Thailand. A Healthier Choice. 25% Lower In Sugar & Lower In Saturated Fat As Compared To Regular Cultured Milk Drink.