Answer first
Peptides are short chains of amino acids, the building blocks of proteins. In cosmetics they are used as signalling, carrier or conditioning ingredients. GHK-Cu in Folli-Flux is a carrier peptide that binds copper. Peptide research is promising but mostly lab-based, so treat claims carefully.
Types
Signal peptides, carrier peptides (like GHK-Cu) and others used for conditioning.
Reading labels
A peptide name on the label tells you what is inside, not how well it works for you.
Questions
Are peptides natural?
Many occur naturally; cosmetic ones are usually made in a lab.
Do they need special storage?
Keep them cool, closed and out of the sun.
Studies mentioned
These studies looked at ingredients or general approaches. None of them tested our treatments or products, so they are background, not proof.
- Pickart L et al. (2015). GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. Biomed Res Int 2015:648108.Review. The copper peptide GHK-Cu, naturally present in plasma and declining with age, supports skin repair, collagen and glycosaminoglycan synthesis, and wound healing including of hair follicles in animal studies.PubMed 26236730doi:10.1155/2015/648108