-PH hlangothi. Indlela ukukhetha indlela ngokuvumelana ibhalansi acid-base?

izikhathi Ngokuqinisekile abaningi awuzwanga umqondo ezifana pH (hlangothi, esidi noma ane-alikhali). Kuyinto isilinganiso hydrogen futhi kungatholakala kokubili tube nge cream, kanye reception ngesikhathi wesikhumba. Ulwazi on the pH we isikhumba kubaluleke kakhulu. Kuyini lokhu sibalo? Zama ukuqonda.

Okuncane nokwakheka kwesikhumba

Njengoba yaziwa, ungqimba Horny zazigcinwa epidermis isikhumba, ke wenza umsebenzi wokuvikela. Kuyinto amanzi-lipid-matrix equkethe kwakwakhe amanoni isiphuku acid Markionini. Abaningi bakholelwa ukuthi u-PH hlangothi - mayelana 7, kodwa lokhu kuyadukisa. Nemigubuzelo ne inani pH kuyoba ezomile futhi Lonyaka. Isikhumba yakhiwa acidosis kanye citric acid organic, futhi ngenxa yalokho, kodwa ukulinganisela kwaso ingahambi ngale omuncu. Uma dermis kukhona ukwephulwa noma eshintsha pH we epidermis iqala ukushintsha kakhulu. Lokhu kungaba nemiphumela izinhlungu zokugula okungathí sina, bese umphumela ukunakekelwa kwesikhumba okungafanele.

Esikalini pH

Into yokuqala okudingeka sikukhumbule ukuthi inkolelo yokungafi «pH kokungathathi hlangothi" osebenza ngokuqondile imvelo embuzweni. Ngokuphathelene isikhumba ukubaluleka kuyinto 5,2-5,7, edwengula - 7.4, futhi izixazululo chemical kokungathathi hlangothi pH value - amayunithi 7 (isib, amanzi).

Siyazi kusukela amakilasi ikhemikhali izinga ibhalansi acid-base kuhluka 0 kuya 14. pH Neutral - cishe ingxenye yayo, noma yini ngezansi - kuba esidi, ngenhla - ane-alikhali. Ngokuqondene imiqondo e Cosmetology, lo «pH kwezomshado" kusho ukuthi umuntu onjalo inkomba acid-base iyona engcono kunazo zonke izinhlobo isikhumba.

Ngaphezu kwalokho, isikhumba oily njengoba kubangelwa le nkomba. Isikhumba esomile inenani pH kusuka 5.7 kuya ku-7 evamile - kusuka 5.2 kuya 5.7, oily - 4 kuya 5.2.

Izinkinga zesikhumba: umjikelezo omubi

Sesike asebenzelana ngayo yokuthi line-pH, kodwa manje ake sixoxe ngezinkinga ezihlobene nale inkomba. isikhumba oily - kuyinkinga kubantu abaningi. Ikakhulukazi entsheni. Cishe zonke izingane ziyoba nakanjani kuphakama izinduna. Yiqiniso, lokhu kuwumphumela ukwehluleka okwesikhashana ngemuva kwama-hormone. Nokho, ngalesi sikhathi kubaluleke kakhulu isikhumba ukunakekelwa efanele.

Yini ukweluleka abazali Kulezo zimo? Ngokuvamile ugeza? Lo mfana enza kanjalo, kodwa induna kuphela ukuthola ezinkulu. Siyini isizathu? Soap - kusho kokuba ukusabela ane-alikhali futhi pH layo kuhluka amayunithi 6 kuya ku-11. Ukusebenzisa kwakhe njalo kuholela yokuthi it washa zathu yeka kude ungqimba phezulu ubuso nge medium ene-asidi. Umsebenzi ayisivikelo corneum stratum isebenza ukuze ezincane esikhumbeni amaminerali acid ama-bacterium izitshalo evamile yomuntu, kulapho he khiqiza amafutha ongama. Yilokho umjikelezo omubi: kulapho thina geza thina, isikhumba zhirneet ngaphezulu. Umbuzo zemvelo kuphakama: "Yini okufanele siyenze?"

Indlela ukugcina pH kuyinsakavukela?

Ukuze asindise ubuso lapho behlanza zemvelo acid-ane-alikhali ukulinganisela kwaso, futhi udinga uyinaka imikhiqizo yezimonyo, ezisetshenziswa inqubo. Isinyathelo sokuqala ukuba uthole ukuthi iyini insipho ne pH kokungathathi hlangothi ingasetshenziswa okugeza njalo. Uma lokhu ngempela nesilinganiso esifanele, base-hydrogen kumelwe nakanjani babe esidi (amayunithi 5.5). Lezi zihlanganisa foams ekhethekile, si, umzimba Scrubs, isikhumba cleanser ngoba oily (pH = 4).

Uma kungekho inkinga njengoba enjalo, ingasetshenziswa i-ukunakekelwa ejenti ne asidi, amayunithi 5.5 isikhumba esomile - eduze hlangothi - 6.5. Kunoma ikuphi kubalulekile ukukhumbula ukuthi ukuze ukhethe ikhambi esifanele ukunakekelwa kwesikhumba, kumelwe cishe zilingane ibhalansi acid-ane-alikhali. Kuyefana nasendleleni izimali ezisele isikhumba. Gel nge pH hlangothi, njengoba umthetho, efanelekayo isikhumba esomile, futhi inkinga ukukhetha izimali nge imvelo ene-asidi kancane.

Shampoo futhi pH amazinga

Njenganoma iyiphi ikhemikhali, imoto futhi line-pH, nomkhiqizo ngamunye, kungcono ezahlukene. Lapha, ngokuvumelana imithetho yamakhemikhali, esebenza kahle umthetho ofanayo: phansi ukuya 7 amayunithi - kuyinto esidi, ngenhla - ane-alikhali. Amashampu nge pH hlangothi - ncamashi 7 amayunithi. Ngokulinganiswa ekhanda cishe konke kuhlale zinjalo. Ngokuvamile wayengenayise naphakathi wavuma esidi - 4.5-5.5. Lokhu kusho ukuthi kukhethwa imoto kufanele athembele ngokuphelele indlela ekhanda uthambekela amafutha.

Ukuze uhlobo ezomile Kunconywa ukuba asebenzise imoto ane-alikhali esengeziwe okunamafutha noshukela - ene-asidi kancane. Uma nepriveredlivyh sezinwele, ezifana izingane, kubalulekile ukukhetha amashampu pH kokungathathi hlangothi (amayunithi 7). Ngeshwa, abambalwa kuphela abakhiqizi uveze ukuthi inkomba acid-base elikhona imikhiqizo yabo skincare. Basuke kungagcini kuphela imibhalo (I-ezomile, oily, isikhumba evamile). Lokhu akunembile, ngoba, ngokusho izifundo, kubonakala sengathi, njengoba umthetho, amashampu esijwayelekile isikhumba ane-alikhali, futhi kufanele kube ene-asidi kancane.

Ingabe Singakwazi yini ukuthola i-pH ezingeni kwesikhumba futhi izindlela?

Abaningi ungathanda ukufunda amanzi acid ukulinganisela nendaba ethile. Ekhaya, ukwenza isivivinyo akunzima. Lokhu kudinga isixazululo kanye inkomba acid-base, njengoba umthetho, litmus strip. Bona bacwilisa angena ikhambi kanye olubekwa iphepha elimhlophe. Cishe ngokuphazima kweso, isibonisi kuboniswa ngombala. Ngaphansi ezihlongozwayo Isikali sombala, kungenzeka ukunquma imvelo esidi noma ane-alikhali. Ngokwesibonelo, uma litmus elicwiliswe insipho eningi, bese uyokunika nombala oluhlaza njengesibhakabhaka endaweni esidi - abomvu.

Enye indlela ukuthola ukuthi yini i-pH, - kuba pH-imitha. Lena eliphezulu kakhulu funa idivayisi okusezingeni eliphezulu ukunemba ukuzimisela. Isetshenziselwa ezimbonini lapho ukulawula kwemvelo okudingekayo (ukukhiqizwa kukawoyela, zamakhemikhali upende umkhakha, kanye nabanye.). idivayisi okunjalo kungabuye atholakala reception ngesikhathi wesikhumba. Kulesi sihloko, kodwa sathola ukuthi kwakuboshwe pH lokhu, futhi esiphethweni kanjani ukukhetha izimonyo esifanele ukunakekelwa kwesikhumba ngokuvumelana acid-ane-alikhali yabo esele.