- “It is an ascorbic acid serum, so that is brownie point number one because a lot of brands just skip the ascorbic acid and put in these derivatives that haven't really been shown to do what ascorbic acid does”
- “Neutrogena is a brand that has a lot of R&D behind their formulations. They take them into clinical studies”
- “It is an ascorbic acid serum that you can be confident in, but you're not shelling out that price point”
- “It's at an effective percentage strength, and it also has some other antioxidants in the formula that likely play a supporting role in stabilizing the ascorbic acid”
- “What I really love about this is two things. First of all, is gluconolactone, which is a polyhydroxy acid”
- “It also has this micropeptide that they actually worked quite a bit on developing for, I'm going to say, 15 years”
- “It has been taken into the clinic and tested on actual patients and shown to improve wrinkles and interestingly enough, lower facial sagging”
- “This is one that at baseline is affordable. It meets all the criteria for what I would consider a good vitamin C serum”
- Source: Dermatologist's top Amazon big spring sale skincare deals 2026 - Mar 25, 2026
