Hi @jager5210, the protocol has two B12 supplements listed. B12 Lozenges along with folate provide for greater uptake of B12 into the body. The preferred one is Seeking Health | Active B12 Lozenge with L-5 MTHF | Vitamin B12 Supplement | Methylfolate | 60 Lozenges -- 1 tablet twice daily. The optional one if the above on is unavailable is Doctors Best B12 1500 mcg Capsule (2 - 1500 mcg capsules twice daily). http://solutions2pnpd.com/ has the links and instructions.