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Low molecular Copper Tripeptide-1 (GHK-Cu) with 99% purity 1,000ppm helps reduce the appearance of fine lines and sagging by promoting collagen and elastin production deep within the skin, delivering visible skin regeneration and long-lasting firmness

Quantity: 1 mg Form: Lyophilized Powder Structure: 83-AA IGF-1 analog (Arg3 substitution, 13-residue N-terminal extension) CAS: 946870-92-4 Molecular Weight: ~9,111 Da Purity: 99.4% (third-party verified) Storage: -20C long-term

The researchers developed a novel nanoparticle system (SSBPEI-DOX@siRNAs/iRGD-PEG-HA) that was dual-targeted and GSH-responsive

Another study by Sudakov et al