A 2013 study by Stier et al
However, you may also want to consider Kysse, which was developed by the same manufacturer, with the lips specifically in mind
Search Within Type of Search Limit to a Database Search Databases Manually by Outline Summary: It is now known that some medications, when used chronically, can result in undesirable side effects that were not necessarily obvious or present within most initial clinical trials
Iron Dextran + Vitamin B12 Injection is manufactured and globally distributed by AdvaCare Pharma, a leading manufacturer of veterinary injections in the pharmaceutical industry
Product seems to be working but I think month 2 will be better
In most cases, B12 injections for wellness purposes are not covered by insurance