Caffeine Carboxyloyl Tripeptide-37

Caffeine carboxyloyl tripeptide-37 is a synthetic peptide—a short chain of amino acids—that incorporates caffeine as part of its molecular structure. It is designed to function as a skin conditioning agent, helping to maintain the skin's texture and appearance.This ingredient belongs to the peptide family, which are commonly used in skincare formulations to support skin structure and resilience. The addition of caffeine to a tripeptide structure is intended to combine the properties of both components within a single molecule.

Peptides work by signalling to skin cells, particularly fibroblasts, which are responsible for producing collagen and elastin—the proteins that give skin its structure. By including caffeine within the peptide structure, the ingredient may provide additional benefits; caffeine is known to have mild stimulating and potentially antioxidant properties when applied topically.The combined molecule may be more efficient at penetrating the skin barrier and delivering both the peptide and caffeine benefits simultaneously, though the exact mechanism of this specific ingredient requires further clari…

This ingredient is typically found in serums, moisturisers, and targeted treatments. Apply to clean skin, either morning or evening, depending on the formulation. It works well alongside other conditioning agents and can be layered with complementary actives. Allow each product to absorb before applying the next layer.

Generally well-tolerated in cosmetic formulations. Those with caffeine sensitivity or known reactions to peptide products should patch test first.