PepsRadar
⌕ Search✧ Ask
Skin biology, copper peptides, and pigmentation.
This topic groups related research questions. Shared biology does not make different peptides interchangeable, or establish a clinical benefit. Compare each paper’s population, preparation, and measured outcome.
Afamelanotide is an alpha-MSH analogue investigated for photoprotection in erythropoietic protoporphyria (EPP). Melanotan I is a research name associated with this molecule; an implant trial does not verify a retail research vial.
Prescription medicines
Read the studies →AHK-Cu is a copper complex of the tripeptide alanine-histidine-lysine. It is related to GHK-Cu but is a different molecule. Its featured evidence uses donated human hair follicles and cultured cells, not people using a product.
Research topics
Read the studies →Argireline is an acetylated hexapeptide used in cosmetics. A short placebo-controlled trial studied a topical formulation for wrinkles around the eyes.
Cosmetic ingredients
Read the studies →GHK is the Gly-His-Lys tripeptide. It is distinct from GHK-Cu, its copper complex. The selected study examined anxiety-like behavior in male rats.
Research topics
Read the studies →GHK-Cu combines a short peptide with copper. It is discussed in topical skin care and tissue-remodeling research, which should be separated from injection claims.
Research topics
Read the studies →The Matrixyl ingredient covered here is palmitoylated KTTKS, also known as palmitoyl pentapeptide-4. A split-face study compared a moisturizer containing this ingredient with its base formulation.
Cosmetic ingredients
Read the studies →Melanotan II is an experimental melanocortin analogue studied for pigmentation. It is distinct from Melanotan I and other melanocortin medicines.
Research topics
Read the studies →PTD-DBM is an experimental motif peptide investigated in Wnt-associated hair-follicle biology. The featured work included human tissue and cells alongside mouse experiments, rather than a controlled human hair-regrowth trial.
Research topics
Read the studies →SNAP-8 is an acetylated octapeptide used in cosmetics. The featured study tested a combination patch with several active ingredients, so its result does not isolate the effect of SNAP-8.
Cosmetic ingredients
Read the studies →
