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Pregnancy or breastfeeding
All these properties have been confirmed by clinical studies
In contrast, topical GHK-Cu application is convenient, has a good safety profile, and has clinical studies backing its cosmetic benefits
The images were acquired on a Tecnai 12 (Thermo Fisher Scientific) LaB 6 electron microscope operating at 120 kV using a Gatan Orius 1000 CCD camera or on a Tecnai F20 (Thermo Fisher Scientific) FEG electron microscope operating at 200 kV using a Ceta CMOS camera (Thermo Fisher Scientific)
For researchers exploring nasal spray peptides , penta deca peptide arginate is among the compounds showing promise via this route
