Your $45 drugstore serum stays surface-level while 15% vitamin C penetrates 3 layers
You smooth your trusted drugstore moisturizer across your cheeks each morning, confident in the $35 investment. The texture feels luxurious, promising “advanced vitamin C” and “anti-aging benefits.” Three months later, your mirror reflects the same fine lines that appeared last winter. That persistent dark spot above your eyebrow hasn’t budged despite the “brightening” claims. Here’s … Lire plus









