Acids nyob rau hauv lub composition ntawm ib cream los yog tonic - yog vim li cas qhov no yuav tsum tau thiab yog nws tsis txaus ntshai? Dermatologists paub tseeb tias: "kua qaub" cov tshuaj pleev ib ce - yog ib qho tseem ceeb ntawm kev pab daws teeb meem nrog daim tawv nqaij. Kev xaiv cov khoom tsim yuav pab txhim kho tus turgor ntawm cov epidermis, tus tawm qhov nyem thiab tshem tawm cov teeb meem tsis zoo.
Txhais tau meej nrog AHA-acids tshem tawm ntawm daim tawv nqaij ntawm cov tawv nqaij, uas tshwj xeeb tshaj yog noj peb tom qab lub caij ntuj no txias. Alpha hydroxy acids yog tshem tawm cov tawv nqaij ntawm cov tuag lub hlwb, rov qab pom nws cov tsos tshiab, rov qab ua kom zoo dua qub, rov tua cov kab mob ntawm lub cev, cov pob txhaws me, pigmentation thiab cov tsos mob ntawm tus mob. Qhov nrov tshaj plaws pleev cov acids yog glycolic, lactic, malic thiab almond: tag nrho cov ntawm lawv yog exfoliants uas muab ib tug siab tshwm sim. Thaum xaiv cov khoom tu koj, muab qhov kev xav rau 5 mus rau 8 feem pua ntawm AHA concentration hauv cov mis.
Cosmetic series nrog VNA-acids yog tsim los rau tau tshem ntawm pob txuv thiab pob txuv ntawm sib txawv degrees. Beta-hydroxy acids, soluble hauv roj, ua rau cov khaubncaws sab nraud povtseg ntawm lub dermis, ntxuav cov pores ntawm sebum thiab cov kab mob. Qhov tshwm sim yog kev lom zem zoo: qhov tsis tuaj yeem dub nciab, qhov qis ntawm qhov pores, txo qis hauv kev sebaceous ci. Cov khoom siv nrog ib lossis ob feem pua concentration ntawm salicylic acid thiab cov khoom xyaw tiv thaiv kab mob yog qhov zoo rau kev sib xyaw cov tawv nqaij.
Rulers nrog PHA-acids - nrhiav rau cov poj niam nrog tawv nqaij. Lawv tseem nrog daws cov teeb meem zoo li AHA thiab VNA, tiam sis tsis ua rau fab kev tsis haum thiab kev txob. Qhov nrov tshaj plaws polyhydroxy acid yog gluconic: nws neutralizes teeb meem ntawm ultraviolet rays thiab stimulates lub synthesis ntawm elastin, txhawb cov youthfulness ntawm daim tawv nqaij.