Daily intake for vitamin C is up to 90 milligrams per day for adult men and 75 milligrams for adult women. Taking too much Vitamin C could result in heartburn, muscle cramps, fatigue, skin flushing ...
Vitamin C is notoriously unstable, so its efficacy in certain formulas can drop over time once exposed to light and air. This face mask contains a more stable version of the vitamin, as well as ...