Fragrance Allergens3 min read
Isoeugenol on the Label and Why It Is Restricted
Isoeugenol is one of the more potent fragrance sensitizers, which is why it gets tighter limits and closer disclosure attention.
March 27, 2026Read
Tagged sensitizer
Concentration Limits4 min read
Cinnamon and Clove Oil Levels That Stay Skin-Safe
Why cinnamon and clove essential oils need a far lower usage ceiling than most essential oils, and how to keep strong sensitizers within safe range.
March 9, 2026Read