Is a SkinCeuticals C E Ferulic dupe worth it?

Several budget serums in this pool pair vitamin C with vitamin E and ferulic acid to mimic the well-known C E Ferulic formula. Customer ratings on these dupes are generally positive, but because none of these listings carry independent lab stability testing in the data we reviewed, you can't assume identical antioxidant performance. Treat them as affordable alternatives rather than verified equivalents.