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Frequently asked questions Can I use copper peptides in the morning and retinol at night

A: Yes, peptides like GHK-Cu or IGF-1 LR3 are also studied for regenerative effects, though mechanisms differ

Accessed January 2026

Samples must be collected within two to four hours post-administration to capture measurable concentrations, and immediate processing (centrifugation, plasma separation, freezing at 80C) is essential to prevent ex vivo degradation

This ensures safety and effectiveness