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Consider how these antioxidants fit into your broader goals

Hair, skin, and nails: B12 supports cell reproduction, so hair, skin, and nail health can suffer when levels are low

For instance, a case study reported a woman developing chronic urticarial plaques after starting intramuscular Vitamin B12 injections, which resolved upon discontinuation of the injections

This ingredient (alongside other synthetic waxes) have been concluded to be safe in cosmetics under the present practices

PMID 12095224