There are two types of Manuka honey:
“Ordinary” Manuka which like most honey contains hydrogen peroxide antibacterial characteristics.
“Active” Manuka honey which is what Happy Valley is, naturally contains a non hydrogen peroxide antibacterial quality. This is referred to as UMF or aka Unique Manuka Factor. Active UMF is available in different strengths. 15+ is considered the best by far for the health of your dog.