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they differ in flexibility, not biology
they are short chains of amino acids that play different roles in the body
Nasal spray provides faster absorption than subcutaneous injection in many cases
That is a relief since I have used Hevert for quite some time and they are really stinging, ouch I was assuming you'd apply it topically - and that would help by migrating inwards
Which is Better
Health experts recommended daily allowances (RDAs) for B12 intake recommendations vary by age, but the recommendations are the same regardless of your sex [1]: - 0 to 6 months 0.4 mcg - 7 to 12 months 0.5 mcg - 1 to 3 years 0.9 mcg - 4 to 8 years 1.2 mcg - 9 to 13 years 1.8 mcg - 14 years and older 2.4 mcg If youre pregnant, the National Institute of Health recommends you ingest at least 2.6 micrograms of B12 per day
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