Disclosure lists, the 2026 rollout dates, and what shows up on your label.
In a high-fragrance-load perfume, nearly every allergen in the blend clears the leave-on disclosure threshold, which changes how you approach labeling.
Health Canada is phasing in fragrance allergen disclosure on the CNF and the label. Here is what List 1 and List 2 mean, and the two dates that decide when each one binds you.
A quick way to check whether your formula is hit by the April 12 List 1 deadline, the August 1 List 2 deadline, or both.
Escalation steps and workarounds when a fragrance house stalls on allergen breakdowns before your Canada CNF deadline.
Why these lab-made jasmine notes carry fragrance allergen disclosure requirements the same as naturally derived ones.
What a claim like allergen-free or hypoallergenic fragrance actually means once you look at how essential oils and blends are built.
How Canada's two-tier fragrance allergen list works and which hard mandatory date, April or August 2026, applies to each list.
A worked shampoo example showing how the rinse-off allergen threshold drops several fragrance allergens off the label compared to leave-on products.
What to actually ask your fragrance supplier for, and what a compliant allergen declaration document needs to contain before you can file it.
Tracing one body lotion formula from its fragrance dose through to the exact allergens that must appear on the Canadian label.
These two declarable fragrance allergens hide inside compounded bases more often than makers expect. Here is where to look for them.
A working checklist for gathering fragrance allergen data, doing the concentration math, and placing it correctly before submission.
How the long-standing 26-allergen EU baseline compares to the wider expanded list, and what falls newly into disclosure scope.
Where Canada's declarable fragrance allergens overlap with Hotlist restrictions, and why one ingredient can trigger two separate rules.
What Canada's List 1 fragrance allergen deadline actually requires on the CNF and label, and what happens if you miss it.
Cosmetic fragrance allergen disclosure and candle labeling are governed by different rules entirely. Here is where the line sits.
How to handle a fragrance allergen calculation that lands right on Canada's 0.001 or 0.01 percent disclosure line, and why you should not round your way out of it.
Why rinse-off products get a threshold ten times higher than leave-on ones for fragrance allergen disclosure, and what that means for shampoo and cleanser formulas.
The sensitization science behind why regulators pull specific fragrance compounds like linalool and eugenol out of parfum and name them separately.
Limonene and linalool get more sensitizing as they age and oxidize, which changes what shelf-worn stock actually contains versus what you formulated.
Where geraniol actually comes from in your formula, why it usually shows up with citronellol, and when Canada requires it named on the label.
Why eugenol from clove, cinnamon, and basil oils carries a stronger sensitization profile than most fragrance allergens and when disclosure kicks in.
The two percentages makers routinely mix up when disclosing fragrance allergens, and the multiplication step that connects them correctly.
Why clove oil, geraniol, and linalool are not interchangeable on a label, and how to translate common allergen names into the INCI form regulators expect.