There are numerous potential corrosion inhibitors for magnesium alloys, which can be categorized as organic and inorganic inhibitors . The latter usually act as precipitation-type inhibitors and their effectiveness is strongly related to the microstructure of a Mg alloy, since the inhibition is usually based on retarding the cathodic activity of IMPs. In our previous works , we have shown that inorganic oxidizing anions, such as permanganates and molybdates, are effective inhibitors for the corrosion protection of AZ31 and WE43 alloys. In the case of the AZ31 alloy, the inhibition mechanism is based on the formation of a surface oxide layer suppressing the cathodic activity of IMPs and the anodic activity of the Mg matrix. Therefore, the implementation of such inhibitors can potentially decrease the negative impact of Li-rich IMPs on the corrosion resistance of Mg-Li alloys.