can glutathione and vitamin c be used together Pure Encapsulations - Liposomal Liposomal Glutathione Setria® Antioxidant -

Wang, W., Li, Y

Always good to have a reason I have also had this happen when my folate was low , it may be worth you getting it checked I had self inject my B12 every 4 weeks for the last 20+ (cannot really remember how long accurately), and 2 months ago got a similar 'electric shock tingling' all over my body - head, face, arms, hands, legs, feet etc within a couple of minutes of injecting, which lasted about 3 seconds or so

General guidance from MedlinePlus recommends changing sites from one injection to the next and spacing new injections at least 1 inch away from the previous spot

Other Considerations: Monitoring: Regular monitoring of vitamin B12 levels, complete blood counts, and neurological function is advisable, especially in long-term use