January 2026 in “International Journal of Biological Macromolecules” This study found that different polypeptides, including KP peptide and hydrolyzed keratin, can improve the mechanical properties of damaged hair under varying conditions, with reduction environments and cysteine content influencing their effectiveness.
277 citations
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October 1982 in “The Journal of Cell Biology” This study found that the cytokeratin patterns in skin epithelia can distinguish between different types, with basal-cell epitheliomas showing a striking similarity to the pilosebaceous tract.
4 citations
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December 2010 in “Copernican Letters” This article reviews popular peptides used in cosmetics for wrinkle treatment and presents no new clinical findings.
198 citations
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October 1986 in “Differentiation” 9 citations
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January 1966