Nufountain, Cellex-C might be worth checking out.
Nufountain
I previously used DE but didn’t like the reformulation. Did not tolerate Timelsss, Nufountain, CSS
Probably all 3, but be cautious. I have found that hands down the BEST ss for this is Ultrasun+
I've been using NuFountain C20 Lightening for a long time and am happy with it, but it doesn't seem+
I love NuFountain's 20% and 20% with Ferulic. I've tried Skinceuticals and many other +++
2nd Nufountain
NuFountain. Very few ingredients, feels like water on the skin. I sent a sample to my +++
Best Vitamin C serum (if I can get on Amazon even better). I have tried r/o
I agree a vitamin C serum the best IME is Nufountain C20 C+ferulic, use in the AM.+