Breakouts from Vitamin B12 are some of the most common I see, even in longtime clients who are using excellent skin products and otherwise have their acne under control. , B12 causes inflamed acne and Vitamin B12 study hints at a molecular mechanism for acne pathogenesis The Pharmaceutical Journal vitamin b12 GAVE me acne skin care journey #1 Is B12 making you break out? It's possible. We've found in our own experience and in clinical studies that certain forms of vitamin B12 can trigger inflammatory acne for some individuals. VITAMIN B12 Supplements leading to ACNE BREAKOUTS?? Wellness Homeopathy