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does b12 injections help hair growth loss. Dermatologist said to take vitamin D and B12. Wear hair in ponytail for work and shower everyday but brush once a week. anyone have tips for hair loss and Size:1000 mcg/ml - 30 ml (Pack of 5) Hair Serum 8% Ghk-cu gym

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It is important to distinguish between evidence-based B12 replacement therapy—which is well-established for treating documented deficiency—and the use of lipotropic combinations, which lack robust clinical validation

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