This is why many advanced research protocols incorporate penetration enhancers or methods like microneedling
Medically reviewed by Missy Zammichieli, DNP, APRN, FNP-BC Updated March 24, 2026 Book Consultation WHAT IS BPC-157
Its all about listening to your body and adjusting your plan based on how you feel and how your levels respond to treatment
doi:10.4103/1673-5374.320969 Knezevic M, Gojkovic S, Krezic I, et al
This rapid response is due to the direct injection of Vitamin B12 into the bloodstream, which allows for quick uptake by the body
However, a 2021 case report found that choline injections caused severe skin inflammation and hard nodules in the areas of administration