Kev tiv thaiv thiab kev noj qab nyob zoo ntawm daim tawv nqaij yog ib qho tseem ceeb ntawm cov tawv nqaij kua qaub - ib qho tshwj xeeb ntuj tiv thaiv lub plhaub, uas yog tsim rau ntawm daim tawv nqaij vim los ntawm cov qe ua kom qis nqaij, tawm hws, thiab oxidation ntawm lawv nyob ntawm daim tawv nqaij ntawm cov kab mob qog - epidermal staphylococci. Tab sis nws yog cuam tshuam los ntawm tshav ntuj, tshuaj pleev ib ce, ntau hws thiab los ntawm txhua hom kev noj haus.
Alpha hydroxy acids.
Feem ntau cov kua qaub hauv cov pleev yog pawg neeg alpha hydroxy acid.
Pawg no muaj cov kua txiv acids - txiv qaub, kua, tartaric, lactic thiab glycolic. Cov kua qaub no muaj nyob hauv ntau cov tshuaj pleev ib ce thiab cov khoom. Nrog qhov tseeb ntawm cov khoom siv kom zoo nkauj thiab nrog cov khoom siv zoo, lawv du tawv, moisturize nws, neutralize cov nyhuv ntawm ultraviolet teeb, du tawm qhov kev ntxhib los mos ntawm daim tawv nqaij thiab ua rau cov khoom xyaw lwm cov khoom xyaw uas muaj nyob hauv cov ntaub ntawv muaj pes tsawg leeg.
Nyob rau saum npoo ntawm daim tawv nqaij tag nrho lub sij hawm tsim "kua nplaum" - ib hom ntawm txheej ntawm lub hlwb tuag ntawm lub epidermis. Meej kuas alpha hydroxy acids txov no "kua nplaum", ua daim tawv nqaij ntau thiab nyiag. Yog li ntawd, cov tuag ntawm daim tawv nqaij raug muab tshem tawm ntawm nws qhov chaw, tso cov tshuaj pleev ib ce kom tob tob hauv cov tawv nqaij, uas ua rau nws cov khoom zoo. Yog hais tias daim tawv nqaij tsis sib luag, npub thiab zoo nkaus li lifeless, kev siv cov tshuaj pleev ib ce nrog alpha hydroxy acids yuav ua rau muaj txiaj ntsim zoo.
Dua li ntawm qhov tseeb tias ib lub qauv zoo sib xws ntawm molecular yog nyob rau hauv tag nrho alpha hydroxy acids, lawv txawv nyob rau hauv cov khoom thiab cov hauj lwm zoo ntawm cov nyhuv ntawm ntau cov teeb meem ntawm daim tawv nqaij. Ntawm alpha hydroxy acids, feem ntau yog cov glycolic, citric, malic thiab lactic acids uas tau hais los saum no.
- Glycolic acid.
Qhov feem ntau ntawm alpha hydroxy acids yog glycolic acid. Nws yog tsim los ntawm qab zib cane los yog tau artificially, by synthesis. Nws yog qhov zoo tshaj plaws vim yog qhov me me ntawm cov lwg me me, uas yooj yim nkag mus rau ntawm daim tawv nqaij.
Glycolic acid zoo heev ntxuav cov tawv nqaij ntawm cov tuag lub hlwb, pab kom tshem tau me me thiab pob txuv, ua rau lub cev ua qog sebaceous. Ib qho tseem ceeb ntawm cov kua qaub no yog nws txoj kev muaj peev xwm ua kom cev nqaij daim tawv muaj zog, ci ntau cov xim pigment, moisturize ntawm daim tawv nqaij, thiab, ua yeeb yam xws li hom catalyst, ua rau kom cov khoom xyaw lwm cov khoom ua kom zoo dua qub. Nws yog txawm tias assumed glycolic acid, tob tob tob rau hauv lub dermis, stimulates qhov ntau lawm ntawm collagen.
- Citric acid.
Citric acid yog ib qho antioxidant heev, yog li ntawd, zoo li glycolic acid, nws pab tsim cov kua roj hmab hauv cov kab dermis. Tsis tas li ntawd, qhov no acid ua rau kev laus zuj zus ntawm daim tawv nqaij, tshem cov xim pigment. Citric acid muaj nyob hauv qhov ntau loj hauv citrus txiv hmab txiv ntoo.
- Lactic acid.
Yuav kom mos mos, tawv nqaij, dermatologists feem ntau siv cov kua lactic acid nyob rau hauv cov mis nyuj, uas muaj peev xwm ua kom muag thiab moisturize ntawm daim tawv nqaij. Lactic acid khaws qis nyob rau hauv daim tawv nqaij, tshem tawm cov tawv nqaij tuag ntawm nws cov ntom thiab ua rau cov khoom xyaw lwm cov khoom muaj nyob rau hauv cov ntaub ntawv muaj pes tsawg leeg.
- Kua Acid.
Kua acid muaj nyob rau hauv cov txiv hmab txiv ntoo ntsuab thiab txiv apples. Vim nws muaj peev xwm nce cov dej ntawm oxygen rau cov nqaij, nws yog siv los kho cov kab mob xws li fibromyalgia. Kua acid yog siv nyob rau hauv qhuav ntawm medicinal tshuaj pleev ib ce.
Qhov tseeb ua ke ntawm natural acid-pib tshuav ntawm daim tawv nqaij thiab muaj cov acids nyob rau hauv lub cosmetic tus neeg sawv cev yog qhov tseem ceeb tshaj plaws uas cuam tshuam cov hauj lwm zoo ntawm cosmetic teebmeem ntawm daim tawv nqaij. Yog tias koj siv cov tshuaj pleev ib ce kom zoo, ces cov roj ntsha alpha hydroxy acids uas yuav pab tau rau ntawm daim tawv nqaij yuav tsis ua rau koj lub cev thiab yuav tsis ua rau mob.
Amino acids.
Peptides yog ib hom ntawm saw, ua los ntawm cov amino acids - biochemical bricks ntawm lub cev. Cov saw no muaj tsawg tsawg ntawm cov amino acids uas tau tuav ua ke, ua tsaug rau peptide bonds.
Nrog lub hnub nyoog, daim tawv nqaij poob nws lub qub elasticity. Qhov no yog vim muaj kev txo qis rau cov haujlwm tshwj xeeb uas ua rau cov kua qoob loo thiab cov kab mob elastin - lub npe hu ua fibroblasts. Tom qab 40 xyoo, muaj ntau tus kab mob wrinkles, raws li txhua txhua xyoo cov ntsiab lus ntawm collagen yog txo los ntawm 1%. Amino acids pab tswj tuav lub zog thiab cov hluas ntawm daim tawv nqaij, ua kom cov qoob loo thiab cov khoom elastin los ntawm cov fibroblasts, ua kom lawv muaj zog.
Amino acids yog tsim rau tej tawv nqaij, vim hais tias lawv tsis muaj feem xyuam rau cov kua qaub acid-pib, tsis txhob ua kom los sis ziab tawv nqaij. Ntau cov teeb meem ntawm daim tawv nqaij yog daws siv cov tshuaj pleev xim rau kev laus, uas muaj cov amino acids hauv nws cov quag.
Lwm cov khoom muaj nqis.
- Alpha-lipoic acid slows tus laus txoj kev, nkag mus rau hauv cov khaubncaws sab nraud povtseg ntawm daim tawv nqaij, tshem qhov inflammatory thiab ua rau cov hlwb cytokine. Alpha-lipoic acid yog soluble hauv dej thiab cov rog, nws yog antioxidant zoo.
- Salicylic acid yog siv nyob rau hauv kev kho mob ntawm pob txuv thiab exfoliation ntawm qhuav ntawm daim tawv nqaij.
- Vitamin C, ua antioxidant, nyob rau hauv daim ntawv ntawm ascorbic acid muaj cov nyhuv ntawm lightening ntawm daim tawv nqaij.
- Ellagic acids nyob rau hauv cov khoom kom zoo nkauj qeeb cov tsos thiab tsim muaj hnub nyoog me ntsis, ua lub ntuj tsim muaj.
- Linoleic acid moisturizes cov tawv nqaij qhuav thiab puas. Nws yog ib feem ntawm cov emulsions moisturizing.
- Hyaluronic acid yog siv ua ib qho dej moisturizing uas muaj ntau ntawm ya raws.
- Poly-hydroxy-acid: zoo li lwm yam hydroxy-group acids, zoo heev, tab sis ntau dua maj mam raug rau cov tawv nqaij.