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A study by Smart et al

Potential side effects may include injection-site redness, swelling, bruising, itching, tenderness, small lumps, headache, fatigue, nausea, appetite changes, abdominal discomfort, stool changes, dizziness, altered sleep, mood changes, or feeling off. Allergic or immune reactions are also possible, and the FDA has specifically raised concerns about immunogenicity and peptide-related impurities in compounded BPC-157

Improves Skin, Hair, and Nail Health Vitamin B12 plays a role in the formation of new cells, including those that contribute to healthy skin, hair, and nails

Similar effects were observed with methanol extracts which increased Bax and decreased the antiapoptotic protein Bcl-2 (21) (22)