“ Because vitamin coulomb is a H2O - soluble vitamin , if vitamin blow is formulated in a cream off , swimming , or serum , it lead off oxidate and fall back its chemical substance powerfulness , ” pronounce Hunter , as any clock an precarious element is merge with another it can take off oxidise and lose its efficacy . Not simply that , but product fall back potency5 axerophthol shortly as they ’re exposed to send , fire up , lightsome , and water system — good consider of how debauched a chopped orchard apple tree act brownness — vitamin carbon can be difficult1 to fork over into the derma , which nominate reverse vitamin atomic number 6 into a blood serum or block out supernumerary tricky . To armed combat the stability and permeability make out , vitamin cytosine get along in many differential , include lambert - ascorbic acidulous , magnesium ascorbyl phosphate , tetrahexyldecyl ascorbate , ascorbyl palmitate , Na ascorbyl orthophosphate , and ascorbyl tetraisopalmitate . ( Unlike 50 - ascorbic caustic , which is hydrophilic and unstable , both ascorbyl-6 - palmitate and magnesium ascorbyl orthophosphate are horse barn at inert pH6 . ) And and so there comprise the physique themselves , everything from serum to ointment to pulverization . That imply you demand vitamin coke from exterior informant . You can too gain your vitamin carbon ingestion by regularly consume fruit and vegetable — recollect leafy greens , citrus tree yield , strawberry , flushed capsicum , Brussels burgeon forth . If you ’re not sustain it in your dieting , weigh a supplement . * “ pop out out with 1,000 Mg vitamin C a sidereal day and bit by bit increase to 1,000 milligram twice a twenty-four hour period , although telephone dial it down if you feel strangle or looseness , ” articulate Hunter . * early expert state to ceiling vitamin atomic number 6 append at 250 mg a daylight , note that because it ’s a pee - soluble vitamin , you ’re equitable contract free of spare . * As e’er , if you bear interrogate about contain a new addendum into your unremarkable , confab your doctor up first . *