B12 injections contain only vitamin B12, while B complex injections include a combination of multiple B vitamins, typically B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), and B12 (cobalamin), among others
In my practice, I do occasionally recommend glutathione and polypodium supplements for melasma (more so for skin lightening)
Since many side effects are tied to slowed digestion, changing how and what you eat can help your body adapt more comfortably
Bull Acad R Med Belg
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