My whole experience with this company and their product has been outstanding. I've been unknowingly B12 deficient my whole life due to Pernicious Anemia. Once diagnosed 3 years ago I started taking B12 injections (cyanocobalamin) but experienced little to no improvement. I am one of the many whose body struggles to convert B12 into its bioactive components. I started with B12rx about a week ago and I already have some noticeable improvements. Recovery is a long process but I now have hope for significant improvements over the next few months and I cannot wait to continue reaping the benefits of this program! Thank you B12rx.