Placed my first order today and will give it a try but I was disappointed upon checking the ingredients list to see that the vitamin B12 is delivered as Cyanocobalamin. This is linked to cyanide, yes cyanide, and can cause some bad reactions in some people - from Wikipedia -
The oral use of cyanocobalamin may lead to skin problems or immunological reactions such as itching and anaphylactic shock. Possible side effects of cyanocobalamin injection include several allergic reactions such as hives, difficult breathing; redness of the face; swelling of the arms, hands, feet, ankles or lower legs; extreme thirst; diarrhea. Less-serious side effects may include headache, dizziness, leg pain, itching, or rash.
There is plenty more info out there about Cyanocobalamin if anyone wants to take a look. I’m aware a lot of these things are internet over reactions and scares but in this case I’ve experienced the effects myself. Please stop using it.