INCI Names & CAS Numbers3 min read
Getting Allergen Percentages From a Supplier Fragrance Doc
Reading a supplier's allergen declaration sheet correctly is what tells you whether your fragrance blend crosses a disclosure threshold.
May 26, 2026Read
Tagged ifra
Suppliers & SDS4 min read
IFRA Category Use Levels and Your Leave-On Products
IFRA product categories set maximum fragrance use levels by exposure type. Get your leave-on lotion mapped to the wrong category and the math is meaningless.
March 4, 2026Read
Fragrance Allergens4 min read
How to Read a Supplier Allergen Declaration Sheet
A walkthrough of a typical fragrance allergen declaration, so the percentages and INCI names actually tell you something useful.
January 28, 2026Read