psr bac water | Peptra Labs BAC Water 30ml Large Bottle
Description
Antineoplastics that are antimetabolites for the vitamin may induce inadequate utilization of vitamin B12

Since starting this supplement, I've felt more comfortable and less gassy

Research has been shown to accelerate the healing of many different wounds, including tendon-to-bone healing and healing of damaged ligaments.

Two things with that: one - it's something like four (or ten?!) times more common in coeliacs and 2 - if you have it you have to be tested a different way because it produces false negatives
