ISOQUERCITRIN is graded A (Safe) by Expert·ING, based on COSING regulatory data.
ISOQUERCITRIN
Safety grade: A
Isoquercitrin is a plant-derived compound found naturally in fruits, vegetables, and plants that acts as a protective antioxidant. It helps shield skin from environmental damage and free radicals that can cause aging.
This antioxidant ingredient protects skin and cosmetic products from oxidative damage, helping to prevent premature aging and maintain product stability.
Graded using: COSING.
Last verified: May 26, 2026
Other Antioxidant ingredients
- TOCOPHEROL — Grade A
- TOCOPHERYL ACETATE — Grade A
- BHT — Grade C**
- ASCORBYL PALMITATE — Grade A
- HYDROXYACETOPHENONE — Grade A
- PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE — Grade A
- ASCORBIC ACID — Grade A
- CAMELLIA SINENSIS LEAF EXTRACT — Grade A