oral vs injectable b12 is replacement better than Should I get injection or use spray? : r/B12_Deficiency 6 best vitamin B12 supplements – Oral vs. Intramuscular Vitamin B12

Your doctor will provide specific recommendations

I saw a really interesting talk recently posted on this forum

Ji, and G.G

Some clinical protocols combine peptides rather than relying on just one: pairing CJC-1295 with Ipamorelin is used to boost growth hormone release for both fat loss and muscle gain, while combining a GLP-1 agonist with AOD-9604 pairs appetite reduction with direct fat-cell targeting

Still, its efficacy case remains unproven at the scale Tesamorelin has demonstrated.

While B12 injections cant cure depression on their own, they have been known to relieve or reduce some of the symptoms and can also be used to reduce the risk of severe cases of depression