Both are supplied as separate 10 mg vials at 99% HPLC purity, for research use only
Because of this, individuals supplementing this form of B12 often report improved quality of sleep, often will require slightly less sleep, and will not uncommonly report that they feel a bit more refreshed when waking in the morning B12 Deficiency Vegetarians and vegans are especially prone to Vitamin B12 deficiency but it they are not alone
TB-500 has also been suggested to support cystic fibrosis due to its potential impact on sputum cohesivity, which has been observed to be decreased following TB-500 exposure
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Many people do but if you have a digestive condition, low stomach acid or any gut absorption issue, very little of an oral supplement will actually be absorbed regardless of the dose
It is easier, it hurts less, and it is what the dose and packaging assume