AHA vs BHA in Cosmetics
AHA (alpha hydroxy acid) thiab BHA (beta hydroxy acid) yog ob txoj hauv kev los tshem tawm cov tawv nqaij thiab tiv thaiv pob txuv thiab tseem ua rau kev laus kom txo qis wrinkles, sagging tawv nqaij thiab lwm yam cim ntawm lub hnub nyoog. AHA thiab BHA tuaj yeem pom nyob rau hauv cov khoom zoo nkauj thiab tshuaj pleev ib ce.
AHA lossis Alpha Hydroxy Acid muaj nyob rau hauv cov khoom siv tshuaj pleev ib ce uas muab los tsim cov tawv nqaij hluas rau cov neeg siv. Glycolic (los ntawm qab zib) thiab Lactic acid (los ntawm mis nyuj) yog ob ntawm AHAs siv ntau tshaj plaws hauv cov khoom tu tawv nqaij. Txij li AHA yog cov kua qaub, cov neeg siv yuav tsum sab laj nrog cov kws paub txog tawv nqaij ua ntej ua ntej siv cov khoom lag luam vim tias tsis yog muab cov tawv nqaij hluas, nws tuaj yeem hlawv cov tawv nqaij.
BHA
Salicylic acid yog cov piv txwv dav siv ntawm BHA lossis Beta Hydroxy Acid. Thiab nws tseem yog cov kua qaub uas yog BHA uas yog siv rau hauv cov khoom tu tawv nqaij. Nws yog ib qho pov thawj kev kho mob rau pob txuv thiab pob txuv vim salicylic acid yog cov roj soluble uas txhais tau hais tias nws muaj peev xwm nkag mus tob rau hauv daim tawv nqaij pores. Tsis ntev los no, salicylic acid yog tam sim no muaj nyob rau hauv cov khoom tiv thaiv kev laus.
Qhov txawv ntawm AHA thiab BHA
Kev hais lus tshawb fawb, AHA tshwm sim hauv cov saw hlau thaum lub sijhawm Alpha txoj haujlwm tib yam li BHA hauv txoj haujlwm beta. Muaj tsib hom AHAs (tartaric, glycolic, lactic, malic, thiab citric acid) thaum muaj tsuas yog ib qho BHA uas tau hais los saum toj no uas yog salicylic acid. Rau cov tawv nqaij puas thiab rau cov tawv nqaij laus, AHA cov khoom yog cov khoom tsim nyog siv thiab Salicylic Acid haum rau oily, pob txuv, thiab pob txuv. Cov neeg siv yuav tsum xaiv AHA cov khoom nrog concentration ntawm 5-10% thiab BHA cov khoom nrog concentration ntawm 1-2%.
Txawm yog koj siv cov khoom tu tawv nqaij rau cov kab mob ntawm daim tawv nqaij lossis tsuas yog saib tsis taus; Nco ntsoov tias kev siv ntau dhau ntawm AHA thiab BHA cov khoom lag luam yuav ua rau koj cov tawv nqaij puas. Ib yam li lwm cov kua qaub, cov khoom no tuaj yeem ua rau khaus, khaus thiab liab ntawm daim tawv nqaij yog siv tsis raug.
In luv:
• AHAs muaj tsib yam xws li: tartaric, glycolic, lactic, malic, thiab citric acid thaum BHA tsuas muaj ib hom hu ua Salicylic acid.
• AHA cov khoom tu tawv nqaij haum rau cov tawv nqaij puas thiab laus thaum BHA cov khoom siv rau pob txuv, pob txuv thiab tawv nqaij oily.
• Kev siv ntau dhau ntawm AHA thiab BHA cov khoom lag luam yuav ua rau daim tawv nqaij puas.
