While oral supplements must navigate the complex digestive processwhere absorption can drop as low as 1-2% for some individualsinjections deliver the full dose directly into your system
[101] Nanotechnologies used in vitamin B 12 supplementation Conventional administration does not ensure specific distribution and controlled release of vitamin B 12 , for example to bone marrow and nerve cells
However, that picture of Kim K that everyone seems to think of, shows her having her own blood rubbed in over top of her microneedling, and thats not a normal reaction to microneedling alone
Individual variation in B12 absorption, methylation efficiency, and metabolic demand affects how much supplementation you need and how often
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B12 deficiency can also be the result of problems with absorption in the digestive tract, which may require treatment via injection