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GHK is the bare tripeptide (glycyl-L-histidyl-L-lysine), while GHK-Cu is the same tripeptide bound to a copper(II) ion
Note that retinol and copper peptides should not be used together to avoid potential irritation and reduced efficacy
Weeks 1316 exceed the dose taken to phase 3
The progression from acute to chronic disease involves quantitative escalation across multiple immune pathways, not a simple switch from one pathway to another
Tang W, Black AS, Moench R, Marzban K, Garay JAR, Zheng JJ, et al
If unsure, consult a dermatologist
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