Enhanced Absorption for Certain Medical Conditions B12 injections are especially beneficial for individuals with medical conditions such as pernicious anemia, celiac disease, and Crohns disease
References Coskun, T., Urva, S., Roell, W.C., Qu, H., Loghin, C., Kirchner, T., et al
Homocysteine, as noted in this article, if its too low could be too much methylation support (such as B12 and methylfolate) may cause levels to decrease too far
Well, the answer for that is complicated by the fact that WADAs own list of criteria for what gets a substance on the banned list is convoluted
Overview GHK-Cu vs KLOW: How Do They Compare
Storage Method: Store away from direct sunlight, at room temperature