01
What it is
In cosmetics, “vitamin C” may refer to ascorbic acid or to several derivatives. Each form has its own stability, compatibility and formulation requirements.
02
Its role in a formula
It is used in routines seeking a brighter, more even-looking complexion. Packaging, pH, concentration and combination with other ingredients matter as much as the chosen active.
03
How to use it
Apply according to the formula directions. If used in the morning, finish with sun protection; if discomfort occurs, reduce frequency and avoid introducing several actives at once.