Tranexamic acid tseem hu ua transaminic acid, coagulant acid thiab hemostatic cyclic acid. Vim muaj cov nyhuv hemostatic zoo heev ntawm tranexamic acid, feem ntau yog siv rau hauv kev phais kom tsis txhob los ntshav thiab kev raug mob los ntshav, tab sis nrog rau kev siv dav hauv cov tshuaj, tib neeg kuj tau pom tias nws muaj "kev mob tshwm sim" - whitening thiab lightening.
Melanin ua li cas?
1, Thaum daim tawv nqaij raug rau sab nraud stimuli xws li ultraviolet rays, kev sib txhuam, kev nyuaj siab, cov tshuaj hormones, thiab lwm yam., cov lus qhia rau synthesize melanin raug xa mus rau melanocytes.
2. Nyob rau hauv melanocytes, tyrosinase yog qhib, uas nyob rau hauv lem tsim melanin.
3. Cov melanin microsomes no txav mus los ntawm dendrites ntawm melanocytes thiab tom qab ntawd mus rau hauv cov hlwb keratinized ntawm stratum spinosum ntawm daim tawv nqaij, tiv thaiv lwm yam xws li ultraviolet lub teeb los ntawm kev ua rau ntau cellular DNA puas.
4, lub epidermal hlwb los ntawm kev faib, extrusion thiab thaum kawg hloov mus rau hauv keratin tsis muaj nucleus, lub melanin yuav raug tso tawm.
Dab tsi yog whitening mechanism ntawm aminomethylbenzoic acid?
Tsis zoo li cov txheej txheem ntxuav hniav dawb ntawm nicotinamide thiab vitamin C, nicotinamide muaj kev cuam tshuam me ntsis ntawm tyrosinase enzyme uas tsim melanin, tab sis cuam tshuam rau kev thauj mus los ntawm melanin. Vitamin C tuaj yeem cuam tshuam ncaj qha rau cov cim melanin, thim rov qab ib kauj ruam (los ntawm dopamine mus rau dopaquinone). Txawm li cas los xij, aminomethylbenzoic acid cuam tshuam nrog lub cim ntawm melanin nyob rau hauv pem hauv ntej kawg thiab tiv thaiv kev thauj thiab diffusion ntawm melanin uas twb tsim lawm tom qab kawg.
Amcinonide yog ib qho protease inhibitor. Tom qab raug ultraviolet lub teeb, amcinonide tsis tsuas yog inhibits tyrosinase enzyme, tab sis kuj inhibits kev tso tawm ntawm prostaglandin PGE2, tiv thaiv cov aggregation ntawm melanin. Cov proteinase activated receptor 2 (PAR-2) hauv keratinocytes tuaj yeem txhawb kev nthuav tawm ntawm melanin rau cov hlwb nyob ib puag ncig, ua rau pigmentation deposition thiab darkening ntawm daim tawv nqaij. Amcinonide tuaj yeem tiv thaiv kev thauj mus los thiab kev nthuav tawm ntawm melanin los ntawm inhibiting kev qhia ntawm proteinase activated receptor, yog li ua kom cov nyhuv whitening ntawm lub posterior.
Mia
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