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Strong exfoliants (AHAs/BHAs): Use exfoliants no more than 23 times weekly, and avoid applying them on the same day as your GHK-Cu serum to prevent over-exfoliation

doi: 10.1016/j.bbrc.2007.08.041

Safe for all skin types: While glutathione is generally considered safe for most people, it may not suit everyone

Start slow: Like the saying goes, slow and steady wins the race

This approach not only facilitates the delivery of DSIP into the brain but also highlights the potential of brain-homing peptides as effective carriers for small molecule drugs, targeting brain parenchyma directly and efficiently

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