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collagen
Research-use-only roundups tagged collagen.
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GHK-Cu
GHK-Cu (Copper Tripeptide-1): Research Roundup
A naturally occurring copper-binding tripeptide widely studied in dermatology and cosmetic research. What the literature shows and where it ends.
Palmitoyl Pentapeptide-4
Palmitoyl Pentapeptide-4: Research Roundup
The Matrixyl lipopeptide studied in collagen-stimulation cosmetic research. Fibroblast literature, palmitoylation chemistry, and lipopeptide QC.