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Vitamin B12 is delivered directly into the bloodstream through a B12 shot, also known as a vitamin B12 injection
We strongly recommend against self-sourcing and self-dosing GHK-Cu
See [expected results timeline](/guides/semaglutide-weight-loss-results-timeline-what-to-expect)
For patients with severe deficiencies or neurological symptoms, we may recommend higher and more frequent doses administered via intramuscular injection
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