The LKKTET(Q) motif binds G-actin, buffering monomers and regulating polymerization so cells can rapidly reorganize their cytoskeleton and move into injured tissue
This distinction matters, especially as some patients refer to IV treatments as skin lightening shots, which can be misleading
About this article Cite this article Li, Z., Lu, J., Dong, Z
The FDA has restored GHK-Cu for non-injectable use to Category 1 of its 503A bulk drug substances list, reversing an April 22, 2026 removal that compounding pharmacies had been scrambling to interpret for the better part of a month
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