Skincare peptides are small-molecule, highly active, and easily absorbed amino acid chains that can precisely target the deep layers of the skin, exerting multiple effects such as anti-aging, repair, and whitening.
These ingredients have small molecular weights (usually oligopeptides composed of 2-10 amino acids), strong penetrating power, and can be directly absorbed by the skin without breakdown. They act like "cellular messengers," mimicking human signals to regulate physiological processes such as collagen production, inhibiting muscle contraction, and promoting repair. Common skincare peptides include signal peptides (such as palmitoyl tripeptide-1), neurotransmitter inhibitory peptides (such as acetyl hexapeptide-8), and carrier peptides (such as copper peptide GHK-Cu). Different types of peptides work synergistically to achieve multi-pathway anti-aging.
Their core advantage lies in their gentle yet highly effective nature. Compared to irritating ingredients (such as retinoic acid), they are more suitable for long-term use on sensitive skin. Furthermore, their mechanism of action is clearly defined, intervening in skin aging at its source, rather than merely surface modification. In addition, many peptides also possess additional functions such as anti-oxidation, anti-glycation, and soothing inflammation, improving the overall health of the skin.