is b12 spray as good as injections Vitamin alternative to 9 Best Vitamin B12 Supplements

The duration for complete recovery extends to six months or longer when your deficiency is severe or when you have pernicious anemia

So it You should find a place that gets it from a reputable, FDA approved pharmacy, because they

Sublingual Tablets or Drops: You place these under your tongue, allowing the B12 to be absorbed directly into the rich network of blood vessels there, completely bypassing the digestive system

But if the plants roots are damaged and cant absorb water (an absorption issue), you could pour gallons on top and it wouldnt make a difference

Some recommend using it within 14-21 days for optimal potency