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doi:10.1110/ps.12801
This guide explains exactly what copper peptide purging looks like, how long it lasts, and most importantly, how to distinguish it from a real problem
Maintenance Phase: Once the desired skin tone is achieved, maintenance doses (usually once every 2-4 weeks) help sustain results
IGF-1 LR3 at research concentrations (95% HPLC, ESI-MS confirmed molecular weight ~9.1 kDa) should be verified for correct LR3 sequence (Arg extension, Glu3Arg substitution) versus native IGF-1 contamination
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