regence blue shield policy on b12 injections Six Tier Drug List Medical Plans - OFFICE OF
Description
The intramuscular route is used for those who have severe B 12 deficiency symptoms, have gastrointestinal intolerance, and are not compliant with their oral supplementation, or when oral supplementation does not maintain B 12 level

This means taking supplements likely does not protect you from nerve damage and associated injuries
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Best Applications for (GHK)-CU This variant is primarily relevant for those formulating their own products or evaluating commercial products that list the specific ratio

specializes in medically supervised B12 vitamin shots at their Torrance, Las Vegas, Costa Mesa, and Henderson clinics, with over 15 years of experience and 30,000+ satisfied patients

For most people, yes especially when guided by a healthcare provider
