Should You Reformulate to Avoid Allergen Disclosure?

Somewhere in the last few months, you've probably had this exact conversation with yourself: do I quietly reformulate my lavender body oil to dodge allergen disclosure, or do I just add the ingredient line and move on? It's a real question, and the honest answer is it depends on your brand, not on some universal best practice.

The disclosure thresholds, plainly stated

Canada's fragrance allergen labeling requirements arrive in two waves. List 1, the original fragrance allergen set, becomes mandatory on both the CNF and the label on April 12, 2026. List 2, an expanded set aligned with international lists, follows on August 1, 2026. The disclosure triggers are concentration-based: above 0.001% (10 ppm) in leave-on products, and above 0.01% (100 ppm) in rinse-off products. Ingredients like Limonene, Linalool, Citronellol, Geraniol, and Eugenol are common examples, and they occur naturally in a huge range of essential oils, not just synthetic fragrance compounds.

That last point trips people up. A "fragrance-free, essential-oil-only" brand can still owe allergen disclosure, because lavender, citrus, and rose oils are naturally rich in exactly the compounds the lists are targeting.

The case for reformulating

Some brands genuinely don't want an ingredient list that reads like a hazard sheet, even though the disclosure itself isn't a hazard claim. If your customer base skews toward people who already avoid fragrance for sensitivity reasons, having Linalool and Limonene spelled out on the label might create friction even when the actual concentration is low and unremarkable.

Reformulating to duck under the threshold usually means one of a few moves:

• Switching to an essential oil or fragrance blend naturally lower in the flagged allergens
• Lowering your total fragrance or essential oil load
• Choosing a different aromatic profile entirely (a citrus-averse product line, for instance)

The case for just disclosing it

For most small and mid-size makers, disclosure is simpler and safer than a reformulation project. A few reasons:

1. Reformulating changes your product. Lavender essential oil isn't just "lavender scent," its allergen profile is baked into the same molecules that give it therapeutic and sensory qualities customers already love. Strip those out and you may have changed what your customers are actually buying.
2. The threshold is fairly low. At 10 ppm leave-on and 100 ppm rinse-off, a lot of naturally aromatic products will cross it regardless of how you tweak the formula, unless you go essential-oil-free entirely.
3. Disclosure is a compliance answer, reformulation is a marketing answer. If your real goal is avoiding a scary-looking label, there are better ways to handle that (explaining what the allergen list actually means to customers) than quietly changing a formula that works.
4. Reformulating still requires you to re-verify the new version. Swapping an essential oil to avoid one allergen can introduce a different one, or change the product's stability, scent throw, or shelf life. You're not skipping compliance work, you're trading one kind for another.

A middle path worth considering

A lot of brands land somewhere between the two extremes: keep the beloved formula, disclose accurately, but use the transition period between now and the mandatory dates to test whether a slightly adjusted essential oil blend still delivers the scent experience customers expect at a meaningfully lower allergen load. That's not the same as reformulating purely to dodge disclosure, it's optimizing a formula you were probably going to keep refining anyway.

What not to do

Don't quietly under-report an allergen's concentration to stay under threshold on paper while the real formula sits above it. Supplier documentation and your own batch records need to support whatever concentration you declare, and Health Canada can ask for that backup.

Where this lands practically

If you're weighing this decision right now, start by getting an accurate read on your actual allergen concentrations rather than guessing. Supplier certificates of analysis for essential oils sometimes list constituent breakdowns (linalool percentage in a given lavender oil lot, for example), and that's the real starting point for deciding whether you're meaningfully over or under the thresholds. Cosmetic Comply's ingredient matching can help surface which of your ingredients carry recognized allergens and at what modeled concentration once your formula and supplier data are entered, which makes this a much less speculative decision either way.