Cov khoom tseem ceeb ntawm e-kua yog edible lossis tshuaj qib zaub glycerin, propylene glycol thiab polyethylene glycol, nrog rau cov khoom tshwj xeeb. Qee cov e-kua kuj muaj nicotine, feem ntau ua rau lawv saj zoo ib yam li luam yeeb.
1. Nicotine
Nicotine, feem ntau hu ua nicotine, yog ib qho alkaloid uas muaj nyob hauv cov nroj tsuag Solanaceae (Solanum) thiab tseem yog ib qho tseem ceeb ntawm cov luam yeeb. Nyob rau hauv e-kua, nicotine kuj yuav tsim ib yam dependence li nicotine nyob rau hauv luam yeeb. Kev hloov pauv nicotine yog daim ntawv tsis yog luam yeeb, me me ntawm cov tshuaj nicotine npaj nrog kev nyab xeeb zoo, hloov nicotine hauv cov luam yeeb, thiab maj mam txo cov nicotine cov ntsiab lus hauv e-kua siv, uas tuaj yeem txo qhov kev vam khom ntawm nicotine.
2. PG yog dab tsi
PG txhais tau tias PG txhais tau tias Propylene Glycol, Suav lub npe yog propylene glycol. Propylene Glycol, roj av derivative ua los ntawm hydration ntawm propylene oxide, yog ib tug ntau yam khoom xyaw siv nyob rau hauv ntau tshaj 4000 khoom thiab formulations nyob rau hauv lub cosmetic thiab kev zoo nkauj industries raws li ib tug moisturizer, daim tawv nqaij conditioner, tshuaj tsw qab Essential oil carrier, hnyav thiab viscosity reducer. Nws kuj yog ib qho khoom noj khoom haus uas nquag siv thiab tseem pom muaj nyob rau hauv deodorants, tshuaj txhuam hniav, tshuaj ntxuav qhov ncauj, cov khoom lag luam luam yeeb, thiab lwm yam khoom lag luam xws li tshuaj tiv thaiv kab mob thiab cov dej nres. Lub luag haujlwm tseem ceeb hauv e-kua yog tus nqa khoom tsw, uas yog qhov tseem ceeb heev nyob rau hauv e-kua Cheebtsam.
3. VG yog dab tsi
VG yog hais txog Zaub Glycerin, Suav lub npe yog zaub glycerin. Glycerin yog cov khoom qab zib thiab humectant feem ntau siv hauv kev lag luam ua zaub mov, feem ntau pom muaj nyob rau hauv cov khoom noj kis las thiab hloov mis nyuj. Glycerin yog dav siv nyob rau hauv kev lag luam khoom noj khoom haus rau ob lub ntsiab yog vim li cas: nws muaj ib tug qab zib saj, tab sis muaj calorie ntau ntau tshaj qab zib; thiab nws absorbs noo noo thiab absorbs noo noo los ntawm huab cua. Cov zaub glycerin yog siv rau hauv kev tsim cov e-kua vim qhov kev thov rau kev tsim cov pa luam yeeb. Feem ntau hais lus, qhov siab dua VG cov ntsiab lus, qhov loj thiab tuab cov pa luam yeeb tsim los ntawm e-kua.