can b12 injections cause itching Been on T for 5 weeks, all sites suddenly (in the past few days) became red and itchy : r/ftm Vitamin B12 Side Effects

This quick and effective treatment helps replenish B12 deficiencies, providing you with more energy, focus, and vitality

Deficiency can contribute to irritability, low mood, and increased stress

If you are suffering from extreme fatigue, lethargy, muscle weakness, pins and needles, mouth sores, or cognitive problems including irritability, depression, or lapses in memory, it may be a sign that you are deficient in Vitamin B12 and could benefit from regular supplementation with Vitamin B12 booster injections

[1] However, any pronounced color change (for example, turning brown) or development of a precipitate should be treated with caution