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Palmitoyl-tripeptide-1
It is a small peptide of three amino acids (they are the building blocks of all proteins) with the amino sequence glycine-histidine-lysine or GHK. GHK binds to palmitic acid (a fatty acid) to increase oil solubility and skin penetration.
The GHK part is an important part because it is a type I collagen fragment. When collagen naturally breaks down in the skin, the resulting peptide fragments signal the skin to get to work and make new, good collagen. Adding collagen fragment peptides, such as GHK, may trick the skin into thinking that collagen has been broken down and it's time to make some more.
Palmitol Tripeptide-1 is a synthetic fatty acid related peptide that can help repair visible skin damage and strengthen the underlying support elements of the skin. It is classified as a "messenger peptide" due to its ability to "tell" the skin how to look better, especially when it comes to reducing signs of sun damage such as wrinkles and rough texture.
Palmitol tripeptide-1 is also known as pal-GHK and palmitol oligopeptide. In its raw material form, it appears as a white powder.