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Powered by Froala Editor When Not to Use Mecobalamin is contraindicated in patients who are hypersensitive to this drug or any component of this product or other B12 containing products

Retrieved 28 August 2017

Riboflavin (vitamin B) is light-sensitive and can degrade with exposure to sunlight or strong UV light, which may reduce the vitamin content and cause the solution to darken

This means that it is not possible to overdose on vitamin B12, and as far as we know there is no upper limit on the amount of B12 that can be taken safely by an otherwise healthy person

But you get what you pay for - two peptides studied in published research at 1% concentration each with five total ingredients

Also, one less metabolic step is needed for the conversion of hydroxocobalamin than cyanocobalamin