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Peptide Stability and Storage Recommendations Reconstituted peptides are sensitive to temperature, light, and chemical environment
While oral supplements are an option, they still have to go through the digestive system, where absorption issues can get in the way
With physiologic (ie, 1 to 2 mg) doses of oral vitamin B12, the vitamin is absorbed by a process dependent on intrinsic factor
S B12 is a vitamin supplement injection
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