After youve filled the syringe with the correct dose, youll safely remove the drawing needle and replace it with the smaller, sterile needle intended for the injection
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Medicine (Baltimore)
Vitamin B12 for hair, skin, and nails If you have a very low level of B12, you may be prone to hyperpigmentation (dark spots) on your skin, vitiligo (light patches on your skin), mouth ulcers, eczema, and acne
Read on as we break down the importance of B12, and our picks
None of these studies were designed as formal safety assessments with structured adverse-event monitoring