Ascorbyl Palmitate

PreservativesCAS: 137-66-6

This is what the ingredient is.

Ascorbyl palmitate is a fat-soluble form of vitamin C, formed by esterifying ascorbic acid with palmitic acid.

Here is why it shows up on the label.

Used as an antioxidant in fats, oils, and fat-containing foods. More stable in fatty systems than regular vitamin C.

Here is what food agencies say.

The FDA lists it as Generally Recognized as Safe. European food agencies allow it (E304). It is allowed in the US, Europe, and many other countries.

Here is what research has found.

an FAO/WHO expert committee confirms safety. Provides vitamin C activity while protecting fats from oxidation. Hydrolyzed to vitamin C and palmitic acid.

Here are a few things worth knowing.

Generally safe. Contributes to vitamin C intake. No significant concerns at food-use levels.

Sources

  • FDA GRAS List
  • EFSA Scientific Opinion
  • JECFA Monograph

How to read this page

We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.

v1.0Updated 9/12/2026