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Peptide-specific mixing considerations While the basic reconstitution process is universal, certain peptides have quirks that require special attention

Pharmacy clinics such as Hollowood Chemists provide consultations and healthcare advice for people considering vitamin B12 injections

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

Its worth noting that the copper ion isnt just along for the ride

I am 130 pounds 5' 8" tall

This picture can also be caused by folate deficiency