Like B12 shots, the nasal spray gets vitamin B12 directly into your bloodstream (via the nostrils), bypassing your digestive system
[43] [41] During pregnancy the placenta concentrates B 12 , so that newborn infants have a higher serum concentration than their mothers
Most people in the general population can get enough vitamin B12 from a balanced diet
You need iron to maintain healthy immune function, to keep your energy up, to breathe, to move and more. Although you cant directly measure how much iron is in your body, because ferritin stores iron, a simple ferritin blood test can indirectly determine whether your iron levels are too high or too low
Kristi Perry, PA-C Eli Luft, PA-C Key Takeaways 1
Combining this with systemic B12 optimisation addresses hair health from multiple angles