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Product safety and consistency also carry weight, because they help build trust for customers and a stronger brand reputation, especially in a pretty crowded nutraceutical market
This was best summed up in a BMJ editorial last year, which noted that diagnosing B12 deficiency can be "challenging" because no "single specific measurement exists to reliably diagnose or refute the presence of B12 deficiency"
What is the typical GHK-Cu concentration used in studies
For most patients with vitamin B12 deficiency, high-dose oral supplements are as effective as intramuscular injections at raising serum B12 levels and resolving symptoms
It is designed for once-weekly subcutaneous injection
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