On-Label vs Off-Label and Compounded Products Vitamin B12 injections are an established medical treatment for confirmed B12 deficiency and related conditions (for example, pernicious anemia and certain malabsorption states), as summarized by the NIH Office of Dietary Supplements in its Vitamin B12 fact sheet for health professionals
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The consensus is that GHK-Cu can enhance results, but it usually complements other therapies (like vitamin supplementation, topical agents, or healthy lifestyle) rather than serving as a standalone fix
What Does the Current Research Say About BPC-157's Mechanisms Beyond Tissue Healing
Bottom Line Intrinsic factor is an essential gastric protein that enables vitamin B12 absorption, demonstrating the critical connection between stomach health and overall nutrition