Ferulic Acid
Antioxidant stability. Light-activated defense.
What it does
Ferulic acid is a plant-derived antioxidant that helps neutralize free radicals and stabilize companion actives such as vitamin C. It supports visible skin defense, especially during daytime exposure to environmental stressors.
Why we use it
We use ferulic acid to protect the integrity of the formula itself. When properly balanced, it helps maintain performance over time, so antioxidant support remains consistent with daily use.

TEXTURE STUDY — CELESTIAL LIGHT C SERUM
This texture reflects the finished formula, not the isolated ingredient.
Featured formula
Celestial Light C Serum
View product›Routine placement
Morning use. Apply after cleansing and follow with SPF to support daily protection.