Unscented vs Fragrance Free for Allergen Disclosure

A customer emails asking if your "unscented" lotion is safe for their fragrance allergy, and you go check the formula and realize you're not actually sure what "unscented" means from a regulatory standpoint versus what the customer is assuming it means. This gap between marketing language and formula reality is exactly where allergen disclosure rules earn their keep.

Two different claims, two different formulas

"Fragrance free" generally means no fragrance ingredient was added to the product at all. There's no Parfum or Perfume listed in the formula, and there's no separate masking scent added either.

"Unscented" is a different claim. An unscented product often does contain a small amount of fragrance, specifically a masking fragrance added in a low enough concentration to neutralize the base smell of other ingredients (many raw materials, oils, and actives have their own natural odor that manufacturers want to cancel out) without giving the product a perceptible scent of its own. The end result smells like nothing to most people, but there's still a fragrance ingredient sitting in the formula doing that neutralizing work.

That distinction matters enormously once you bring allergen disclosure into the picture, because the rule cares about what's actually in the formula, not what the product smells like to a person's nose.

Why this matters for the new Canadian thresholds

Canada's fragrance allergen disclosure rules are phasing in on a defined timeline. List 1, the original fragrance allergen set, becomes mandatory on the CNF and the label on April 12, 2026. List 2, an expanded set aligned with international lists, becomes mandatory on August 1, 2026. The disclosure trigger is concentration-based: above 0.001% (10 ppm) in leave-on products, and above 0.01% (100 ppm) in rinse-off products.

A masking fragrance used in an "unscented" product is still a fragrance ingredient, and if it contains any of the common declarable allergens, Limonene, Linalool, Citronellol, Geraniol, Eugenol, Coumarin among others, at concentrations above those thresholds, it needs to be disclosed just like fragrance in a product that's obviously scented. The "unscented" marketing claim doesn't create an exemption from the allergen rule. It's a separate claim about perceived scent, sitting on top of a formula that regulators evaluate the same way regardless of what the label says about smell.

Where natural ingredients complicate things further

This gets trickier because several of the common declarable allergens occur naturally in essential oils and plant extracts, not just in synthetic fragrance compounds. Linalool shows up naturally in lavender oil. Limonene is common in citrus oils. Eugenol occurs in clove. If your "fragrance free" product uses a botanical extract for a functional reason (an antioxidant claim, a conditioning claim) rather than a scent claim, that extract can still carry one of these allergen compounds as a natural constituent, and it can still cross the disclosure threshold even though nobody added it "for fragrance."

That means the fragrance-free claim on your label and the allergen disclosure requirement are, again, two separate tracks. A product can honestly be fragrance free (no added Parfum, no masking scent) and still need allergen disclosure if a functional botanical ingredient happens to contain one of the listed compounds above threshold.

A practical comparison

Claim	What it means	Allergen disclosure still applies?
Fragrance free	No fragrance or masking scent added	Only if a non-fragrance ingredient (like a botanical extract) naturally contains a listed allergen above threshold
Unscented	Masking fragrance added to neutralize odor, no perceptible scent	Yes, if the masking fragrance contains a listed allergen above threshold
Naturally scented (essential oil blend)	Fragrance from essential oils, has a noticeable scent	Yes, very commonly, since essential oils are rich in these compounds

What to actually check in your formula

Rather than relying on the unscented or fragrance-free label as a shortcut, look at your actual ingredient list against the allergen thresholds. For any fragrance ingredient (including masking fragrances) or any botanical extract with known allergen constituents, you need the real concentration in the finished product, not just the percentage of the blend or extract you added, since the extract's own concentration and the allergen's concentration within that extract are two different numbers you have to multiply together.

If you're working through a formula with several essential oils or a masking fragrance and you're not sure which named allergens you're carrying and at what concentration, that's exactly the kind of ingredient-by-ingredient check Cosmetic Comply is built to do, mapping each ingredient to its INCI and screening it against the applicable thresholds so you're not doing the math by hand for every single SKU as the Canadian deadlines approach.