Berringa Super Manuka 900+ MGO 250gThis is the highest MGO grade that is normally commercially available and it is often used for skin and wound care. The higher the MGO reading the higher the antibacterial and antimicrobial levels of activity in the honey. To put it in context, an MGO of 400 means it is a potent bioactive honey that will have strong antibacterial activity, whilst MGO 900 means the honey is very potent and it is the strongest antibacterial manuka honey we offer. The