Cov tawv nqaij peptides yog me me -molecule, muaj zog heev, thiab yooj yim nqus cov amino acid chains uas tuaj yeem ua rau lub hom phiaj sib sib zog nqus ntawm daim tawv nqaij, ua rau muaj kev cuam tshuam ntau yam xws li tiv thaiv- kev laus, kho, thiab ua kom dawb.
Cov khoom xyaw no muaj qhov hnyav me me (feem ntau yog oligopeptides uas muaj 2-10 amino acids), muaj zog nkag mus rau hauv lub zog, thiab tuaj yeem nqus ncaj qha los ntawm daim tawv nqaij yam tsis muaj kev puas tsuaj. Lawv ua zoo li "cov neeg xa xov tooj ntawm tes," ua rau tib neeg cov cim qhia los tswj cov txheej txheem physiological xws li collagen ntau lawm, inhibiting leeg nqaij contraction, thiab txhawb kev kho. Cov peptides saib xyuas cov tawv nqaij muaj xws li cov teeb liab peptides (xws li palmitoyl tripeptide-1), neurotransmitter inhibitory peptides (xws li acetyl hexapeptide-8), thiab carrier peptides (xws li tooj liab peptide GHK-Cu). Ntau hom peptides ua haujlwm sib koom ua ke kom ua tiav ntau txoj hauv kev los tiv thaiv kev laus.
Lawv lub ntsiab kom zoo dua yog nyob rau hauv lawv cov mos mos tab sis zoo heev xwm. Piv nrog rau cov khoom xyaw ua rau khaus (xws li retinoic acid), lawv yog qhov tsim nyog rau kev siv sijhawm ntev - siv rau ntawm daim tawv nqaij rhiab heev. Tsis tas li ntawd, lawv cov txheej txheem ntawm kev ua haujlwm tau txhais meej meej, cuam tshuam rau ntawm daim tawv nqaij laus ntawm nws qhov chaw, tsis yog qhov hloov pauv ntawm qhov chaw. Tsis tas li ntawd, ntau peptides kuj muaj cov haujlwm ntxiv xws li tiv thaiv -oxidation, tiv thaiv -glycation, thiab soothing o, txhim kho kev noj qab haus huv ntawm daim tawv nqaij.