the integrity of vitamin C can be negatively impacted. In general, you should apply water formulations before oil formulations. The Ordinary recommends using a maximum of three serums in a single ...
It helps protect delicate skin from the sun while battling fine lines and dark spots, fans say — wins all around.
My experience using The Ordinary Niacinamide 10% + Zinc 1% serum ... the skin on your hands and going to waste. Those who use vitamin C products should avoid using this serum as niacinamide ...