Placing Parfum and Its Allergens Below the 1 Percent Line

Someone asked us last week why their 0.3% fragrance blend was sitting near the top of their ingredient list, right after water and glycerin, when it felt like it should be buried near the bottom with the other trace ingredients. Good question, and it trips up a lot of makers who assume INCI order always tracks intuition.

Here is the rule that actually governs it. Ingredients above 1% concentration in the finished product are listed in descending order by concentration. Once you cross below 1%, order stops being about amount and the remaining ingredients can be listed in any sequence. Parfum, and any allergens broken out from it, follow whichever rule applies to their actual concentration, not to how fragrance "feels" as a category.

Why a tiny fragrance load can still sit high

If your total scent blend is 0.3% but three other ingredients (a preservative, a thickener, a pH adjuster) are each under 1% too, all four of those ingredients are now in the same "no order required" zone. You could genuinely list Parfum before or after them and both would be defensible. What throws people off is seeing Parfum listed early in a product where most ingredients are water, humectant, and a couple of emulsifiers well above 1%. In that case Parfum at 0.3% is simply grouped with everything else under the 1% threshold, and its position among that group is not concentration-driven.

The mistake to avoid is assuming Parfum always goes at the very end because "fragrance is always tiny." Some leave-on products push fragrance up near 0.8 to 0.9%, which still keeps it under 1% but puts it near the top of that sub-1% cluster in practical formulating terms even though the rule does not require ranked placement there.

Where the allergens fit once they are broken out

This is where Canada's incoming rules change the picture. Once List 1 becomes mandatory on the CNF and label on April 12, 2026, and List 2 follows on August 1, 2026, individual fragrance allergens above the disclosure thresholds, 0.001% (10 ppm) in leave-on products and 0.01% (100 ppm) in rinse-off products, get named separately by INCI rather than folded silently into "Parfum."

So a leave-on lotion with 0.3% total fragrance might end up listing:

Component	Approx. concentration	Listing behavior
Parfum (remainder of blend)	~0.25%	Grouped under 1%, order flexible
Linalool	0.02%	Named allergen, still under 1%, order flexible
Limonene	0.015%	Named allergen, still under 1%, order flexible
Geraniol	0.008%	Below the leave-on 10 ppm floor if this low, check exact figure

Notice that breaking allergens out of Parfum does not change the 1% rule. Every one of these is still a sub-1% ingredient, so their relative order to each other and to Parfum is not concentration-mandated. What changes is that they now appear as named, separate line items instead of disappearing into the umbrella term.

The math people get wrong

The error we see most is treating the allergen disclosure threshold as if it applies to the whole fragrance blend rather than each individual allergen molecule. A 0.3% fragrance oil might contain linalool at 8% of that blend. Multiply it through: 0.3% times 0.08 gives you 0.024% linalool in the finished product, which is 240 ppm, comfortably above the 10 ppm leave-on trigger. Skip that multiplication and you might assume a "small" fragrance load means nothing needs disclosing. It often does.

Rinse-off products get more headroom because the threshold is ten times higher (100 ppm versus 10 ppm), which is worth remembering if you are reformulating a leave-on version of a rinse-off product using the same fragrance oil. The same blend that clears disclosure in a rinse-off cleanser can trip the threshold once it becomes a leave-on lotion.

A practical way to check your own list

1. Get the fragrance supplier's full allergen declaration, not just the blend's trade name.
2. Multiply each allergen's percentage within the blend by your total use level of that blend.
3. Compare each result against 10 ppm (leave-on) or 100 ppm (rinse-off).
4. Anything crossing the threshold gets named by INCI; the rest can stay folded into Parfum.
5. Confirm every named ingredient, including Parfum itself, sits correctly relative to the 1% cutoff for ordering purposes.

If you are running this by hand across several SKUs, it is easy to lose track of which allergen crossed which threshold in which product. Cosmetic Comply does this multiplication automatically when it maps your fragrance blend to its components and carries the percentages through, then flags which allergens need naming under List 1 and List 2 as those dates approach. Worth a look before the April deadline if you have not mapped your fragrance blends yet.