... best price 3.Own factory Ascendent Manufacturer Function and Usage:Bovine collagen is pure natural, no add, no hormones, no corrosion ... , and surgical purposes. Cosmetic Use: Collagens contain the natural moisturizing factor for the body as natural moisturer, wrinkle-resistant, nutrition role ... ( Salmonella sp., Staphylococcus aureus ) Negative pass According to GME17Conclusion pass bovine collagen