1000 mcg b12 injection Compounded Cyanocobalamin (Vitamin B12) treat B12 deficiency vitamin b12 injection dosage for

doi: 10.1038/s41592-022-01687-w 37

We might suggest starting with 2,000-5,000 mcg injections to help with severe symptoms

Summary of Outcomes and Conclusion GHK-Cu injection has emerged as a novel regenerative therapy that often delivers noticeable before-and-after improvements in skin and hair

The most common B12 injections are hydroxocobalamin and cyanocobalamin

No published trials have reported alterations in methylation pathway markers (like homocysteine or methylmalonic acid), but this has not been systematically studied in long-term human use

Additionally, other factors such as having had gastric bypass surgery or taking antacids long-term can lead to deficiency