is b12 injected into animals VITAMIN INJECTION 3000 mcg Vitamin B-12 1000 Injection (VetOne),
Description
The achievable regrowth ceiling is lower with advanced loss

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All of these factors can be alleviated by the cytoprotective and anti-inflammatory actions of IGF-1 [105, 123, 247249]

You can also give B12 as an injection, which may provide more targeted treatment but can occasionally be more time-consuming and stressful for the animal