TB-500 is a synthetic 17-amino-acid fragment of Thymosin Beta-4 (TB4) , a 43-amino-acid actin-binding protein (molecular weight ~4,963 Da) present in nearly all human cells except red blood cells
It is also important to note that products sold as AOD 9604 are often presented as injectable preparations, though some are marketed in oral or topical forms with unknown absorption and unverified quality
Moreover, megadoses of up to 2,000 mcg are considered safe in treating B12 deficiency, but its best to avoid excessive amounts of any vitamin, especially when not needed
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Vitamin B12 deficiency anemia is usually treated with injections of vitamin B12
For example, our [Energy, Mitochondria & Fatigue Elimination Bundle]( includes several compounds relevant to these areas