The Antioxidant Synergist That Doubles the Power of Vitamin C and E

FeraShield™ delivers high-purity Ferulic Acid — a phytochemical antioxidant with a unique and well-documented ability to photostabilize co-antioxidants. More than simply adding antioxidant protection itself, Ferulic Acid multiplies the combined photoprotective efficacy of Vitamins C and E from 4× to 8× solar protection — a finding confirmed in landmark peer-reviewed research and replicated across multiple institutions.

At just 0.5%, it transforms an already effective antioxidant combination into a significantly more powerful environmental defense system.

Why FeraShield™

• Doubles antioxidant photoprotection – C+E alone = 4× protection; C+E+Ferulic Acid = 8× (published RCT data)
• Stabilizes Vitamin C in formulation – maintains ascorbic acid potency under UV and oxidative stress
• Independent free radical scavenger – significant standalone antioxidant activity via hydrogen atom donation
• Low use level, high impact – 0.5% delivers full synergistic benefit; cost-efficient in formulation
• Clean & globally compliant – plant-derived or synthetic (both vegan), COSMOS-compatible

Formulation Advantages

FeraShield™ is most effective and stable at pH 2.5–4.5, making it naturally compatible with Vitamin C formulations. Slight water solubility is easily overcome with ethanol or propylene glycol as a co-solvent. Integrates cleanly into antioxidant serums, morning moisturizers, and lightweight oils.