What Is IFRA, and Does It Apply to Candles?

IFRA is the International Fragrance Association, the fragrance industry's own safety body. It writes the IFRA Standards, which ban, limit or set purity rules for certain fragrance ingredients, and its guidance puts candles in Category 12. IFRA says it is not a regulatory authority and does not impose legal obligations. So for a small candle maker, the practical piece is the IFRA certificate that comes with each fragrance oil. I am a candle maker, not a lawyer, and nothing here is legal advice.

Is IFRA a law?

No, by IFRA's own description. Its About page says it "is not a regulatory authority and does not impose legal obligations" and works through a voluntary system. Its Standards page says the Standards are compulsory for IFRA members, voluntary for everyone else, and do not replace national or local rules.

One line on that page matters to you as a maker. On picking a category and a concentration limit for a finished product, IFRA says "the final decision and responsibility always lies with the end consumer product manufacturer." For a candle, that is you.

Do the IFRA Standards cover candles?

Yes. IFRA's guidance for the 51st Amendment (dated June 30, 2023) lists "Candles of all types (including encased)" under Category 12. It defines that category as "Products not intended for direct skin contact, minimal or insignificant transfer to skin." CandleScience words it as "Air care not intended for direct skin contact." The words differ, and both put candles there.

The 51st is the latest Amendment I could confirm as in place when I checked on November 4, 2026. IFRA closed its consultation on a 52nd Amendment on June 12, 2026, and says the formal Notification is expected in January 2027. It says those Standards start 11 months later for new creations and 30 months later for existing ones, so expect new certificates.

The guidance describes three kinds of Standard: a limit on how much of an ingredient is allowed, a ban, and a specification such as a purity rule. It says a ban "applies to all final product applications, including non-skin contact applications." So a banned ingredient is banned in a candle too. IFRA's table does not name wax melts. CandleScience lists them under Category 12, and IFRA says a product missing from its table is for the company making it to place, so ask your supplier which category its certificate uses for melts.

What is an IFRA certificate?

It is a document your fragrance supplier writes. IFRA's guidance says IFRA does not certify anyone and takes no responsibility for the content of a supplier's certificate. The certificate says a fragrance can be used up to a stated concentration in a stated type of product, up to a named Amendment, and the guidance says the Amendment's number and notification date should be on it. It "does not replace a safety assessment," and it does not excuse you from national or local rules.

CandleScience explains the limit on a certificate as the most fragrance you can use "and remain IFRA-compliant," and says it is "not a recommendation for how much you should use for the best end results."

Worked example: is my fragrance load under the limit?

IFRA's guidance states limits as a weight-per-weight percent of the finished product. One supplier page explains it against the base weight. They differ slightly, so I show both. All numbers are examples, including the 6.0 percent Category 12 limit on this made-up certificate.

Recipe: 16 oz (454 g) of wax at an 8 percent fragrance load, counted on the wax.

• Oil: 16 x 0.08 = 1.28 oz (36 g)
• Candle weight, wax plus oil: 16 + 1.28 = 17.28 oz
• Oil as a share of the candle: 1.28 / 17.28 = 0.0741, or 7.4 percent

That is over 6.0 percent. The most oil, as a percent of the wax, that stays at or under 6.0 percent of the candle is L / (1 + L) = 0.06, so L = 0.06 / 0.94 = 6.38 percent. Check it: 16 x 0.0638 = 1.02 oz of oil, and 1.02 / 17.02 = 0.060.

If the certificate meant percent of the wax, the limit is 16 x 0.06 = 0.96 oz, and your 1.28 oz is over by 0.32 oz (9 g). Both readings say 8 percent is too much. When you cannot tell which basis your certificate uses, use the lower number, 6.0 percent of the wax, and ask the supplier. I could not find a source on whether the jar or wick counts toward the weight, so I leave them out.

Is the IFRA limit the same as my wax's limit?

No. IFRA's limit is about the fragrance ingredients. How much oil your wax can hold before it sweats or clogs the wick is a separate limit, from the wax maker's sheet. Stay under the lower of the two. CandleScience's own example is a fragrance with a Category 12 maximum of 100, far above what the wax can hold, so for that oil the wax is the limit. Another oil can be the other way around, so read each certificate. Our guide on maximum fragrance load covers the wax side.

Common mistakes

• Treating the certificate as the only safety check. IFRA says it does not replace a safety assessment.
• Using an old certificate. Check which Amendment it names, and ask your supplier for the current one. IFRA's Standards Library lists the latest.
• Reading a limit from the wrong category. Candles are Category 12, not the soap or lotion rows.
• Mixing up the two percents, wax weight and finished weight.
• Assuming "IFRA compliant" means a government has approved the candle.

Questions

Do I have to follow IFRA to sell candles in the US?

IFRA says the Standards are compulsory for its members and voluntary otherwise. It also says its members produce around 80 percent of the global volume of fragrance, so the certificate is how the Standards reach you. The CPSC's candle page says a candle that contains a hazardous substance under the Federal Hazardous Substances Act must carry cautionary labeling. Beyond that, I did not research US law on fragrance in candles, so ask a lawyer or the CPSC about what applies to your business.

Where do I get an IFRA certificate?

From the supplier that sold you the fragrance oil. IFRA says each supplier of fragrance mixtures writes its own. Ask for one per oil, and ask which Category and which Amendment it covers.

Does IFRA tell me how much oil to use?

It tells you a ceiling, not a target. CandleScience says the same. Pick your load from your wax sheet and your own burn tests, then check it against the certificate.