(1R,4S,5R,8S)-1,2,3,4,10,10-HEXACHLORO-1,4,4A,5,8,8A-HEXAHYDRO-1,4:5,8-DIMETHANONAPHTHALENE (ISODRIN-ISO) is graded F (Banned) by Expert·ING, based on EU COSING Annex II regulatory data. It is restricted under EU COSING — AnnexII.

(1R,4S,5R,8S)-1,2,3,4,10,10-HEXACHLORO-1,4,4A,5,8,8A-HEXAHYDRO-1,4:5,8-DIMETHANONAPHTHALENE (ISODRIN-ISO)

Safety grade: F

This chemical substance is prohibited in EU cosmetic products under COSING Annex II. It has been banned due to safety concerns identified by EU regulatory authorities.

Graded using: EU COSING Annex II.

• EU COSING — Prohibited
• Health Canada — Prohibited

Last verified: June 7, 2026