4-BUTYLRESORCINOL is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.
4-BUTYLRESORCINOL
Safety grade: A
4-Butylresorcinol is a lab-created compound related to a naturally occurring molecule found in plants. It is a powerful skin-brightening ingredient commonly used to help fade dark spots and even out skin tone.
It is used in cosmetic products primarily to reduce hyperpigmentation and dark spots by inhibiting melanin production, while also protecting the skin from oxidative damage.
Graded using: COSING, FDA.
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