Please ask for knowledge why
Niacinamide cannot be formulated simultaneously with formulas containing
L-ascorbic acid if the formula containing the above two components is combined in the same formula. What reaction will cause the serum? Or will it affect the face in any way? If in the formula there are 2 substances above mixed in the same formula? What serums are there currently?
Niacinamide and
L-ascorbic acid up total It's in the same formula. Thank you.