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For patients who have difficulty absorbing B12 through the digestive tractsuch as those with pernicious anemia, gastrointestinal disorders (like Crohns disease or celiac disease), a history of gastric bypass surgery, or those with severe B12 deficiencyour providers often recommend intramuscular B12 injections

Choline: A nutrient that assists in the transport and metabolism of fats and cholesterol, preventing accumulation in the liver

We usually see some improvement in the first few weeks, with more noticeable changes later

This suggests the treatment stimulates new hair growth rather than thickening existing hairs