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Keep vial tightly sealed with desiccant if possible to minimize moisture exposure
Freeze-thaw cycles should be minimized for both, but the consequences of a freeze-thaw cycle tend to be more pronounced for GHK-Cu due to local pH excursions during ice formation, which can disrupt Cu coordination
Apr 2025;16(1):1-24
The National Institutes of Health recommend the following daily dosage of vitamin B12: Birth to 6 months: 0.4 micrograms Infants 712 months: 0.5 micrograms Children 13 years: 0.9 micrograms Children 48 years: 1.2 micrograms Children 913 years: 1.8 micrograms Teens 1418 years: 2.4 micrograms Adult men and women 1850 years: 2.4 micrograms Adult men and women over 50 years: 25250 micrograms Women who are pregnant: 2.6 micrograms Women who are breastfeeding: 2.8 micrograms Adults over the age of 50 are at a greater risk of vitamin B12 deficiency because they tend to produce less stomach acid, which is needed to convert the vitamin properly
Epigenetics 11 (1), 59
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