I’ve spent roughly $1,200 on vitamin C serums over the last six years. Skinceuticals C E Ferulic ($182 for 1 oz). Drunk Elephant C-Firma ($78). Maelove ($28). The one I keep buying? Timeless 20% Vitamin C + E Ferulic Acid Serum. It costs $24.95 for 1 oz. This isn’t a paid review. I’m just someone …
