There is no FDA-approved GHK-Cu drug product for systemic or injectable therapeutic use
It plays a role in promoting cellular protection, supporting liver detoxification, enhancing energy production, and boosting immune function
Dolgin, E
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Increases in plasma estrogen levels of up to 55% occur under some circumstances when vitamin C is taken concurrently with oral contraceptives or hormone replacement therapy, including topical products
[1] In moderate deficiencies, feeling tired, feeling faint, mouth ulcers, rapid breathing, upset stomach, pallor, hair loss, decreased ability to think and joint pain and the beginning of neurological symptoms, including abnormal sensations such as, numbness and tingling, and tinnitus may occur