Peptides used for beauty are a type of small molecule protein composed of 2-50 amino acids connected in a specific sequence. They can specifically regulate skin cell activities, such as promoting collagen production, reducing wrinkles or inhibiting melanin. They are key active ingredients in many anti-aging and repair skin care products.
The principle of action of peptides in beauty
Peptides have a smaller molecular weight and are more likely to penetrate the skin barrier to exert their effects. Different types of peptides improve skin condition through different mechanisms:
Signal peptides (such as palmitoyl tripeptide-1):
Transmit "accelerated repair" signals to skin cells, stimulating collagen and elastin synthesis.
Carrier peptides (such as copper peptides): carry trace elements to promote wound healing and also have antioxidant properties.
Neurotransmitter inhibitory peptides (such as acetylhexapeptide-8): alleviate dynamic wrinkles (such as crow's feet and forehead wrinkles) by locally blocking muscle contraction signals.