Does Hydroxo B12 contain GMO ingredients? Amber Larsen September 27, 2016 21:57 Follow No, test results verify that there are no genetically modified ingredients in this product. Related articles Is Hydroxo B12 suitable for vegans and vegetarians? If not, why? Does Hydroxo B12 contain corn or grain-derived ingredients? Why is Hydroxo B12 pink in color? Comments 0 comments Article is closed for comments.