TETRAHEXYLDECYL ASCORBATE is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

TETRAHEXYLDECYL ASCORBATE

Safety grade: A

This is a stable, oil-soluble form of Vitamin C that's been chemically modified to last longer in skincare products without breaking down. It works similarly to regular Vitamin C but stays effective for longer periods.

It protects skin from environmental damage and free radicals while improving skin texture and appearance, making it a long-lasting alternative to traditional Vitamin C in skincare formulas.

Graded using: COSING, FDA.

Last verified: May 26, 2026

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