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the vitamin deficiency in the age group that included the elderly varied between 11% to 90%

GHK-Cu dosage can be personalized by age, but there is no official age-based dosing chart like you would see with prescription medication

The standard dosage is 5 to 10 mg per week via subcutaneous injection

They place the needle just outside of the protective membrane that surrounds the spinal cord, called the epidural space