It doesn’t matter that much when it’s applied on skin, if there’s UV, ozone, pollution then +
Paula’s Choice C15 booster - because it takes the more or less +
Nufountain, Cellex-C might be worth checking out.
Ethoxydiglycol or dimethyl isosorbide is high up on all the US ones I looked at except Cellex C. +++
I like Paula’s Choice C15 more than the Skinceuticals one, not only +
Ascorbyl glucoside isn’t vitamin C, it’s a derivative and doesn’t work the same +
I just switched a month ago and luv it for evening!!! I used the same Cellex C for over 15yrs.
Cellex c speed peel facial gel
I know - years ago I really tried with the DIY back in the day when - r/o
My favorite is Cellex-C, but it's $$$. But it's got a cosmetically elegant formula and it works at +