Kusuka kuma-shampoo kuya kudayi wezinwele, imikhiqizo yezinwele ingaqukatha okuningi izithako ezinobuthi uyakwazi ukuthinta umzimba.
Kulokhu okuthunyelwe ngizochaza kabanzi ukuthi iziphi izithako eziyingozi empilweni ezingafakwa kwimikhiqizo yezinwele ezahlukahlukene, futhi zinobuthi esikhathini eside esizayo.
I-Aminomethyl propanol
Iyinhlanganisela esetshenziselwa ukulungisa i-pH emikhiqizweni eminingi yezinwele, iphephile ekugxileni kwe-2% noma ngaphansi, kepha kunezimonyo zezinwele ezinamazinga aphezulu.
Ingozi ephezulu kakhulu yobuthi ihlobene nodayi bezinwele nemikhiqizo yokuqondisa. Lapho amazinga wokuhlushwa angaphezulu kwe-12%, i-aminomethyl propanol iba yi-carcinogen engaba khona.
I-ammonium iyaqhuma
Lesi ngesinye sezithako ezinobuthi emikhiqizweni yezinwele. Kuvame ukutholakala ezikhanyisweni nakweminye imikhiqizo yezinwele ephethwe ngemibala.
Kuyinto ecasulayo eyaziwayo, engathinta ikhanda, amehlo, nekhala. Ukuchayeka isikhathi eside kungadala i-dermatitis ne-asthma.
I-Diethanolamine (DEA), i-monoethanolamine (MEA) ne-triethanolamine (TEA)
Le trio yamakhemikhali ingaphazamisa ukusebenza kwamahomoni. Kuvame ukutholakala kuma-shampoo, futhi isenzo sayo sobuthi singaholela ekwakhekeni komdlavuza, okunengozi enkulu yomdlavuza wezinso nowesibindi.
I-DEA ingatholakala kuhlu lwezithako njengeLauramide DEA, iCocamide DEA, ne-Oleamide DEA, womathathu lawa angathinta i-keratin, ishiye izinwele zomile futhi zihlwili.
Okutholwayo kwe-formaldehyde
Okuvame kakhulu yi-imidazolidinyl urea ne-DMDM hydantoin. Yize zingafaki empeleni i-formaldehyde, zingaba nemiphumela efanayo.
Ziyizithako ezimbili ezinobuthi kakhulu emikhiqizweni yezinwele ngoba zingaba nomdlavuza, zingadala i-asthma, futhi futhi zibangele ukungezwani komzimba nokuguquka kwemizwelo.