Lorraine vitamin c - 7 Natural Sources of Vitamin C in Skin Care

Zollinger PE, Tuinebreijer WE, Breederveld RS, Kreis RW.

I was wondering if you could tell me- since the oil soluble form of Vit C- VC-IP Ascorbyl Tetraisopalmitate is highly stable, in a facial serum facial oil containing 3% of this kingredient, what would be the expiration date on the final product, after it leaves the factory?? Is it possible that in some cases this type of vitamin C is likely to cause more irritation? It could also be a case of close-enough-is-good-enough or I may be completely wrong.

I found your article super helpful, but then got confused while looking for a seller of Ascorbyl Tetraisopalmitate to add to a DIY squalane serum.

She then began to investigate ways of preventing or minimizing radiation and chemical damage that led to the study of the protective effects of antioxidants such as Vitamin C.