What it is
This ingredient is a derivative of ascorbic acid (vitamin C) modified with a palmitate fatty chain and a phosphate group, then neutralized as the trisodium salt. The modifications make the vitamin C portion more stable in water-based formulas than pure ascorbic acid, while the fatty chain improves compatibility with the oil phase. It is used as an antioxidant and skin-conditioning agent and appears in vitamin-C-themed sun-care and brightening-oriented products.
Safety & warnings
Stabilized vitamin C derivatives of this type are generally better tolerated than pure ascorbic acid because they are less acidic and more stable. It is not a recognized fragrance allergen and is not an oil associated with clogging pores. As with most vitamin C derivatives, very sensitive skin may rarely notice mild irritation.
Origin & sourcing
Synthetic derivative made by modifying ascorbic acid, which is itself produced commercially by fermentation and chemical processing.
Questions everyone asks
Is this a form of vitamin C?
Yes. It is a stabilized vitamin C derivative designed to stay more stable in formulas than pure ascorbic acid while acting as an antioxidant.
Why use a vitamin C derivative instead of plain vitamin C?
The derivative is more stable and less acidic, which makes it easier to formulate and often gentler on the skin.