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store at -20C for long-term stability and to maintain peptide integrity

Allergic reactions to proprietary preparations of vitamin B12 might be due to substances added to the solutions as preservatives or for other reasons, to impurities from the production, or to the vitamin B12 itself

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Therefore a B12 deficiency may lead to decreased serotonin production, which in turn may cause a depressed mood

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B12 may further support this process by promoting the proper functioning of insulin-producing cells in the pancreas