Fragrance Allergens4 min read
Fragrance Allergens That Also Sit on the Hotlist
Where Canada's declarable fragrance allergens overlap with Hotlist restrictions, and why one ingredient can trigger two separate rules.
June 1, 2026Read
Tagged coumarin
Concentration Limits4 min read
Coumarin as a Fragrance Allergen and When to Declare It
How coumarin's leave-on and rinse-off thresholds work in practice, using real percentage math a maker can follow.
May 8, 2026Read
Fragrance Allergens4 min read
Coumarin on Labels: Tonka, Vanilla, and Disclosure
Coumarin's warm, sweet fragrance sources like tonka bean, and why it needs allergen disclosure separate from any unrelated ingestion concerns.
February 22, 2026Read