No Randomized Controlled Trials: As of February 2026, no published, peer-reviewed, randomized controlled trial of BPC-157 in humans exists for any indication
however, in participants undergoing heavy physical stress (e.g., marathon runners, skiers, or soldiers in subarctic conditions), vitamin C supplementation halved the incidence of colds (5 trials)
Vitamin B12 testing often raises important questions, particularly for those at risk of deficiency or related health conditions
Obviously, you want to get your vitamin B12 through a reputable manufacturer
However, the gray-market research chemical market operates in the background, with suppliers in various jurisdictions offering BPC-157 for "research purposes." Using research chemicals obtained through these channels exists outside the regulatory protection that official medicines provide