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The Lancet (2021) 6
In contrast, GHK-Cu has been extensively studied since it was first discovered in the 1970s, and the benefits attained from its consistent application are well-documented
Additionally, its role in the formation of new blood vessels highlights its potential for acute injuries and muscle growth
The FDA does not require pre-approval for cosmetic ingredients, which is why thousands of serums, creams, and prescription formulations contain it without regulatory issue
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