Checking If a Fragrance Blend Is Inventory-Listed

A fragrance oil you've used for years shows up as a single trade name on your supplier's paperwork, but underneath it might be a dozen or more individual chemical components, and Australia doesn't check fragrances as one unit. That's where this gets tedious, and where a lot of makers get stuck.

AICIS works differently than a per-product notification

Australia regulates cosmetic ingredients through AICIS, the Australian Industrial Chemicals Introduction Scheme. Instead of notifying a finished product the way you might in Canada, AICIS treats cosmetic ingredients as industrial chemicals and manages them through an Inventory of chemicals along with introduction categories that determine what obligations apply when you bring a chemical into the country. It's a fundamentally different structure from a per-product notification model, and that difference is exactly why fragrance blends are such a common sticking point.

A fragrance blend isn't itself a single entry you can look up. It's a mixture, and mixtures aren't what gets listed on the Inventory. The individual chemical components are what matter for AICIS purposes.

Breaking the blend down before you can check anything

Before you can verify anything against the Inventory, you need the blend's actual composition, which means going back to your fragrance supplier for the component breakdown rather than relying on the trade name alone. This is the same expansion logic that applies anywhere supplier blends are involved: a trade name never appears on a filing, and you need the real components to do anything meaningful with the ingredient data.

Once you have the component list, the practical process looks like:

1. Get the full component disclosure from your fragrance house, ideally with CAS numbers for each component, since some substances have multiple naming conventions and a CAS number is often the most reliable way to confirm you're checking the right entry.
2. Check each component against the Inventory individually. A blend with ten components means ten checks, not one.
3. Note the concentration of each component in the finished product, not just its share of the fragrance blend. This means multiplying the component's percentage within the blend by the blend's overall use level in your formula. A component that's 5% of a fragrance blend used at 1% in your lotion is present at 0.05% in the finished product, and that real-world number is what matters for restriction thresholds.
4. Flag anything you can't find or can't get disclosed. Some fragrance suppliers protect proprietary blend details closely, which can leave you with an incomplete picture. That's a conversation to have directly with the supplier rather than a gap to guess around.

Why this is worth the effort even when it's tedious

It's tempting to treat a long-used fragrance oil as a known quantity because nothing's ever gone wrong with it before. But the components underneath a fragrance blend can include a wide range of substances, some naturally occurring in essential oils and some purely synthetic aroma chemicals, and the regulatory status of individual components is what actually matters under an inventory-based system like AICIS. A supplier reformulating their blend without telling you, which happens more often than makers expect, can change what's actually inside a "same" trade name product.

A simple tracking approach

Step	What you need	Where it comes from
Component list	Full breakdown of the fragrance blend	Your fragrance supplier, sometimes under NDA
CAS numbers per component	Unique identifiers for each substance	Supplier documentation or safety data sheet
Real concentration in finished product	Component % in blend × blend % in formula	Your own formula records
Inventory status per component	Confirmation against the current AICIS Inventory	AICIS directly, since listings and categories can change

A note on international overlap

If you're already tracking fragrance allergen disclosure for a market like Canada, where List 1 becomes mandatory on the CNF and label on April 12, 2026, and the broader List 2 follows on August 1, 2026, you're already doing a version of this component-level breakdown work. Allergens like Limonene, Linalool, Citronellol, Geraniol, Eugenol, and Coumarin occur naturally in many essential oils and need disclosure above set thresholds. Building one thorough component breakdown per fragrance blend and reusing it across your Canadian allergen disclosure and your Australian Inventory check saves you from redoing the same supplier conversation twice.

Cosmetic Comply is built around exactly this kind of component-level ingredient work, expanding supplier blends into their real components and carrying percentages through the math, with Canada live today and other markets including Australia on the way. If fragrance blend breakdowns are the part of your compliance process you dread most, that's the part worth automating first.