b12 injection works Benefits of Injections for Optimal Health Feeling constantly tired, foggy, or
Description
Ongoing signaling stops once you stop applying, which is why most users treat GHK-Cu as long-term maintenance
It depends on your individual needs

It is also available through an injection but is more commonly found in supplements
The benefit of this is that this higher dose can be injected in one shot and the benefits of B12 supplementation may be felt sooner
