How to Declare a Fragrance Oil on an Ingredient List
Updated November 2026
On a cosmetic sold in the United States, a fragrance oil is declared on the ingredient list as the single word Fragrance — the FDA regulation that governs cosmetic ingredient declarations lets the whole fragrance be named with one collective term instead of its components. On a candle, a reed diffuser or a car freshener there is no federal ingredient list to begin with, and anything you print is a voluntary statement you then have to stand behind. Which of those sentences applies to you is decided by what you are making, not by what is in the bottle, so that is where this page starts.
Key Takeaways
- On a United States cosmetic, the whole fragrance is declared as the single word Fragrance. 21 CFR 701.3(a) requires descending order of predominance and then allows fragrance to be listed as fragrance.
- A candle, a reed diffuser and a car freshener are not cosmetics. No federal rule makes you publish an ingredient list on them at all — what the label must carry is identity, net quantity and your name and address.
- California is the exception that catches a car freshener. Air care products are designated products under the Cleaning Product Right to Know Act, and fragrance allergens at or above 0.01% are disclosed.
- An allergen statement gives the percentage in the neat oil. Multiply by your use level to get the number that is actually on your label — at 5%, our Cashmere Wood puts three allergens over the line and two under it.
- Paraben free and forever chemicals free are FTC claims, not label fields. 16 CFR 260.9 treats a true claim as deceptive when the substance was never associated with the product category.
Start With the Product Class
There is no single rule for “a fragranced product.” United States labelling law divides goods by what they are for, and the fragrance follows the product into whichever box it lands in. A body lotion and a car freshener can be scented with the same oil at the same use level and carry completely different labels.
| What you are making | Ingredient list required? | How the fragrance appears |
|---|---|---|
| Cosmetic — lotion, body oil, perfume, balm, soap sold with a cosmetic claim | Yes, federally | The one word Fragrance, in descending order of predominance |
| Candle, wax melt, reed diffuser, room spray, car freshener | No federal requirement | Voluntary — whatever you print becomes a claim |
| Cleaning product, automotive product, polish or floor maintenance product | No federal requirement | Voluntary federally; California requires disclosure |
| Any of the above sold into California as an air care or cleaning product | Yes, under state law | Fragrance allergens at or above 0.01% named |
The product class decides the rule. The fragrance oil itself is the same in every row.
Cosmetics: “Fragrance” Is the Permitted Collective Term
Cosmetic ingredient declarations are set by 21 CFR 701.3. Paragraph (a) is the one that answers the question directly: ingredients are declared in descending order of predominance, “except that fragrance or flavor may be listed as fragrance or flavor.” That single sentence is why almost every cosmetic you own ends its list with the word Fragrance rather than forty component names.
Three details worth having right
Descending order has a floor. Paragraph (f)(2) lets ingredients present at a concentration of not more than 1 percent be listed without respect to order of predominance. Most fragrance oils are used under 1%, so in practice the fragrance sits in the tail of the list with the other minor ingredients.
There is a trade-secret route, and it is narrow. Where the FDA has accepted an ingredient as exempt from public disclosure, the phrase “and other ingredients” may be used at the end of the declaration. This is a granted exemption, not a line you simply choose to print.
The collective term is not a hiding place. It covers the fragrance components; it does not cover a solvent, a preservative or a diluent you added yourself. Those are ingredients of your product and are declared as ingredients.
What the United States does not require today is naming individual fragrance allergens. The EU does, and that difference is the whole subject of our comparison of U.S. and EU perfume labelling; the allergens themselves are covered in fragrance allergens explained.
Candles, Air Care and Car Fresheners
A reed diffuser, a room spray and a car freshener are air care products — none of them is a cosmetic.
A candle is not applied to the body, so it is not a cosmetic, and neither is a wax melt, a reed diffuser, a room spray or a car freshener. The federal labelling requirements that reach these products are the packaging ones — the identity of the product, the net quantity of contents, and the name and place of business of the manufacturer, packer or distributor. No federal rule requires you to list ingredients on them.
That is a freedom with a sharp edge. Because the list is voluntary, nothing forces you to publish one — but everything you do publish is an advertising claim, and an inaccurate voluntary ingredient list is worse than no list at all. The most common error we see is a list copied from a cosmetic template, carrying INCI names for ingredients the product does not contain.
Where California Asks for More
Air care and cleaning products sold in California carry disclosure the federal rules do not ask for.
Three California laws come up in this conversation and they do three different things. Keeping them apart is most of the work.
| Law | What it covers | What it actually requires |
|---|---|---|
| Cleaning Product Right to Know Act Health and Safety Code §§ 108952, 108954 |
Designated products: air care, automotive, general cleaning, polish and floor maintenance products | Ingredient disclosure on the label and a fuller list online, with fragrance allergens at or above 0.01%% named |
| Cosmetic Fragrance and Flavor Ingredient Right to Know Act | Cosmetics sold in California | A report to the state, not a label change — fragrance and flavor ingredients on designated hazard lists are reported to CDPH |
| Proposition 65 | Consumer products generally | A warning where a listed chemical is present above the safe harbour level — it is not an ingredient list and does not substitute for one |
A car freshener sits in row one. A body lotion sits in row two. Either can also trigger row three.
The first row is the one that catches a car freshener, and it is the answer most makers of them have never been given. An air care product — defined in section 108952 as a consumer product labelled to enhance or condition the indoor environment by eliminating unpleasant odours or freshening the air — is a designated product. Section 108954 gives two label routes: list each intentionally added ingredient that appears on one of the designated lists, or list all intentionally added ingredients and add the statement “Contains fragrance allergen(s)” where the threshold is met. Under the second route the non-allergen fragrance ingredients may still be shown simply as fragrances.
The allergen threshold, precisely
The trigger is 0.01 percent — 100 ppm in the finished product, and the list the statute points at is Annex III of the EU Cosmetics Regulation as required to be labelled under the EU Detergents Regulation as of 1 January 2018. That is the long-standing set of fragrance allergens, not the much larger list the EU adopted for cosmetics in 2023 — so an allergen statement written to the newer cosmetic list, as ours are, covers more than this rule asks for rather than less.
The statute also tells you how to count: total each allergen’s contribution from every source in the formula, including the essential oils. An allergen that arrives from two different raw materials is one number on the label, not two.
Turning an Allergen Statement Into Your Number
Here is the step that trips people, and it is the reason a document alone does not finish the job. The percentages on a fragrance allergen statement are percentages of the neat fragrance oil. The threshold is a percentage of your finished product. The two are connected by one multiplication: the allergen percentage times your use level.
Our Cashmere Wood allergen statement is a real example. Five of the long-standing declarable allergens carry figures on it. Used at 5% in an air freshener, three of them cross the California threshold and two do not.
| Allergen | In the neat oil | At 5% use | At 1% use | Over 0.01% at 5%? |
|---|---|---|---|---|
| Limonene | 5.281% | 0.2641% | 0.05281% | Yes |
| Linalyl acetate* | 3.844% | 0.1922% | 0.03844% | Yes |
| Linalool | 1.681% | 0.0841% | 0.01681% | Yes |
| Geraniol | 1.209% | 0.0605% | 0.01209% | Yes |
| Citral | 0.102% | 0.0051% | 0.00102% | No |
| Citronellol | 0.002% | 0.0001% | 0.00002% | No |
Figures read from the live Cashmere Wood allergen statement. *Linalyl acetate is on the newer cosmetic allergen list rather than the detergent set, and is shown here to make the arithmetic plain.
Two things follow from that table. The first is that use level changes the answer: citral is over the line in some products and under it in others, with no change to the fragrance at all. The second is that the arithmetic is the same arithmetic as any other dosing question, which is what our fragrance oil calculator is for.
Every oil in the catalogue carries its own safety data sheet, IFRA 51 regulatory data sheet, allergen statement and California statement on its product page — for example Cashmere Wood. If the document you need for a particular formula is not among them, ask us for it and a person will answer within a business day.
“Paraben Free” and “Forever Chemicals Free”
These are not ingredient-list entries. They are advertising claims, and the FTC guidance on free-of claims in 16 CFR 260.9 is stricter than most people expect. Three traps sit in one short section.
A true claim can still be deceptive
The substitute problem. A free-of claim can mislead where the product contains another substance that carries the same or a similar risk. Removing one thing and adding its cousin does not earn the claim.
The category problem. A claim can mislead where the substance “has not been associated with the product category” — advertising the absence of something that was never in that kind of product implies a benefit that is not there. This is the live risk with paraben free on a fragranced product: parabens are preservatives, and the claim only means something where a preservative of that kind could reasonably have been used.
The trace problem. A free-of claim can survive a trace amount only if all three of these hold: the level is no higher than an acknowledged trace contaminant or background level, the presence does not cause material harm of the kind consumers associate with the substance, and it was not intentionally added. That is the bar a broad forever chemicals free claim has to clear across a whole finished product, not just across the fragrance in it.
The practical position: a claim about a fragrance oil is one you can support with the supplier documentation behind that oil. A claim about your whole finished product is yours to substantiate across every ingredient in it, and we are not in a position to make it for you.
What “Aqueous Fragrance Oil” Means
The phrase describes behaviour in a formula, not a regulatory category. An aqueous — or water-soluble, or water-dispersible — fragrance has been formulated so it will go into a water-based product such as a room spray or a water-based freshener without separating, usually with the help of a solubiliser. A conventional fragrance oil will not do that on its own.
Nothing about it changes how the fragrance is declared. On a cosmetic it is still Fragrance; on an air care product it still carries whatever allergen disclosure the state asks for. What it does change is the rest of your ingredient list, because a solubilised fragrance brings its carrier with it — and that carrier is an ingredient of your product.
Common Questions
Can I just write “Fragrance” on my ingredient list?
On a cosmetic sold in the United States, yes. 21 CFR 701.3(a) requires the ingredients in descending order of predominance but adds that fragrance or flavor may be listed as fragrance or flavor, so the whole oil is declared as one word rather than broken into its components. On a candle, a reed diffuser or a car freshener there is no federal ingredient list to put it on in the first place — anything you print there is voluntary, and a voluntary list still has to be accurate.
Do I have to name the individual fragrance ingredients?
Not on a United States cosmetic label. The collective term covers them. Two situations change that: an EU cosmetic label must name the listed fragrance allergens above the set thresholds, and a California air care or cleaning product must disclose fragrance allergens at or above 0.01% under the Cleaning Product Right to Know Act. Neither one asks you to publish the whole formula.
My product is a car freshener. Which rule applies?
A car freshener is an air care product, not a cosmetic, so the FDA cosmetic labelling rules do not reach it and no federal rule requires an ingredient list. California does: the Cleaning Product Right to Know Act defines a designated product to include air care products, and a designated product sold in California carries ingredient disclosure on the label and a fuller list online, with fragrance allergens at or above 0.01% called out.
How do I work out whether an allergen crosses the 0.01% threshold?
The percentage on an allergen statement is the percentage in the neat fragrance oil, so multiply it by your use level. An oil carrying 1.681% linalool, used at 5%, puts 0.084% linalool in the finished product — above the threshold. The same oil carrying 0.102% citral at that use level puts 0.005% citral in the product, which is below it. California asks you to total each allergen across every source in the formula, including the essential oils.
Is “paraben free” a safe thing to put on a fragranced product?
It is an advertising claim, and the FTC guidance on free-of claims is stricter than most people expect. Under 16 CFR 260.9 a claim can be literally true and still deceptive — if the product contains a substitute with the same kind of risk, or if the substance was never associated with that product category in the first place. Parabens are preservatives; saying a product is free of one is only meaningful where it could reasonably have contained one.
What is an aqueous fragrance oil?
It is a fragrance that has been formulated to disperse in water rather than only in oil or alcohol, so it can be used in a water-based product such as a room spray or a water-based freshener. The phrase describes how the fragrance behaves in a formula, not a regulatory category — it changes nothing about how the fragrance is declared on a label.
In Summary
Settle the product class first and the declaration follows from it. A cosmetic gets the single word Fragrance under 21 CFR 701.3(a). A candle or a car freshener gets no federal ingredient list at all, which makes anything you print a claim rather than a compliance step. California is where a car freshener picks up a real obligation, and the number that matters there is 0.01% of the finished product — your oil’s allergen percentage multiplied by your use level.