How Can I Find Cosmetics That Are Genuinely Hypoallergenic? What the Word Legally Means and How to Check a Product

Hypoallergenic is one of the most searched words in beauty and one of the least understood, including by some of the brands using it. It sounds like a certification and it is not. It sounds like allergy free and it cannot be. What it is, under Regulation (EU) No 655/2013 on cosmetic claims and the Commission's technical document that explains it, retained in Great Britain and enforced through the Cosmetic Products Enforcement Regulations 2013, is a claim that a product was designed to minimise its potential to cause allergic reactions, which the brand must be able to substantiate. That gives a consumer something to work with, because a claim with a definition can be checked, and this guide shows how.

It explains what hypoallergenic legally means and what it does not, why fragrance is the first thing to look at and how the allergen names on a label help, which other ingredient groups matter, how to read an ingredient list for allergenic potential in two minutes, how to tell a genuine hypoallergenic brand from a decorative one, the difference between hypoallergenic, fragrance free, unscented and sensitive skin, what a safety assessor requires before a brand may use the word, how to patch test, and what to do if you have a diagnosed contact allergy. Nothing here replaces a dermatologist or an allergy test; it makes the choosing between appointments a great deal easier.

What does hypoallergenic legally mean?

The Commission's technical document on cosmetic claims states that hypoallergenic may be used only where the product has been designed to minimise its allergenic potential, that the claim must be substantiated by evidence, and that it must not imply the product is free of any allergen or guarantees the absence of an allergic reaction. In practice that means a brand claiming hypoallergenic should have excluded known contact allergens, in particular fragrance allergens above labelling thresholds, preservatives and other ingredients with a significant sensitisation record, should have a rationale for the ingredients it chose, and should hold that rationale, and ideally supporting test data such as a repeat insult patch test, in its Product Information File. There is no certification body, no register and no fixed list; the word is a claim the brand makes and must be able to defend.

Why can nothing be allergy free?

Because allergy is a response of the individual, not a property of the product. A contact allergy develops when a person's immune system becomes sensitised to a specific substance, after which any exposure to it causes a reaction; the substances that do this most often are well known, but in principle almost any substance can sensitise someone, and a person allergic to a common emollient will react to a product that is hypoallergenic by every reasonable design. Hypoallergenic therefore means lower probability for the population, not zero probability for you. A brand that says allergy free, or presents hypoallergenic as a guarantee, is making a claim the science cannot support and the rules do not allow.

Why is fragrance the first thing to look at?

Fragrance is the commonest cause of cosmetic contact allergy by a wide margin. Fragrance concentrates contain dozens of constituents, many of them sensitisers, and the law requires those on the allergen list to be named on the label above thresholds, 0.001 percent in leave on and 0.01 percent in rinse off products. That labelling is a gift to anyone choosing hypoallergenic products: the names that follow Parfum in the ingredient list, Linalool, Limonene, Geraniol, Citronellol, Coumarin and the rest, are the declared allergens, and the EU list has expanded to more than eighty substances from 2026 including several essential oils. A product with no Parfum and no named allergens has no declared fragrance allergens, which is the single largest reduction in allergenic potential a formula can make. A product that says hypoallergenic and lists Parfum followed by five allergens is using the word loosely. Our guide to the expanded allergen list explains the labelling.

Which other ingredient groups matter?

How do I read an ingredient list for allergenic potential in two minutes?

• Look for Parfum, Fragrance or Aroma. If absent, the product has no added fragrance, which is the biggest win.
• Look for allergen names after Parfum. Each is a declared sensitiser present above threshold; fewer is better, none is best.
• Look for essential oils by their Latin names. Lavandula, Citrus, Mentha, Melaleuca and similar in a leave on product are fragrance and allergens.
• Count the ingredients. A short list has fewer things to react to.
• Note the preservative. Established systems with a good tolerance record are preferable to those with a known sensitisation history.
• Check your own triggers. Whatever you have reacted to before, or a dermatologist has identified, overrides every general rule.

How do I tell a genuine hypoallergenic brand from a decorative one?

Ask what the brand excluded and why, and what evidence it holds. A genuine brand answers specifically: no fragrance, no essential oils, no listed allergens, this preservative system because of its tolerance record, tested on a panel of volunteers with sensitive skin under dermatological supervision, results available on request. Its ingredient lists match the answer. A decorative brand answers with the word again: our products are hypoallergenic and gentle. Its lists contain Parfum and allergens. Two other signals help. A genuine brand rarely combines hypoallergenic with strong scent or with a long botanical list, because it understands the trade off. And a genuine brand does not say allergy free or guaranteed, because it knows it cannot.

Hypoallergenic, fragrance free, unscented, sensitive skin: what is the difference?

The combination to look for, if you want the lowest allergenic potential, is fragrance free and hypoallergenic together, with a short list and no essential oils. Unscented alone is a trap, because a masking fragrance is still a fragrance and carries the same allergens.

What does a safety assessor require before a brand may say hypoallergenic?

In the Cosmetic Product Safety Report the assessor checks that claims are consistent with the assessment, and hypoallergenic is one of the claims most often refused. The assessor expects the formula to exclude fragrance allergens above labelling thresholds and to avoid ingredients with a significant sensitisation record, expects a written design rationale, and looks for supporting evidence such as a human repeat insult patch test or a sensitive skin panel study; a product that contains a fragrance with declared allergens will not be allowed to carry the claim. Part B then records the position and the claims table in the Product Information File holds the evidence. Our guide to cosmetic claims explains the rules, and brands can have a proposed hypoallergenic product reviewed before formulation.

How do I patch test a new product?

Apply a small amount of the product to a discreet area such as the inner forearm or behind the ear, twice a day for a few days, and watch for redness, itching, swelling or blistering. A reaction within hours is usually irritation; a reaction that develops over one to three days is more suggestive of allergy. Stop at the first sign of either. A home patch test detects reactions to the product as a whole and cannot tell you which ingredient caused one; that is what a dermatologist's diagnostic patch test, applied under controlled conditions with individual allergens, is for. Home testing is a sensible precaution before using any new product on the face or a large area, and it is doubly sensible for anyone with a history of reactions.

What if I have a diagnosed contact allergy?

Then the general rules give way to your own list. A dermatologist's patch test identifies the specific substances you are sensitised to, and the practical task becomes reading every ingredient list for those names and their relatives. Allergen names on cosmetic labels are standardised INCI names, so a diagnosed allergy to a specific fragrance molecule or a preservative can be checked against every product on a shelf. Many dermatology services provide lists of synonyms and related substances for each allergen, and a person with a diagnosed allergy should keep that list and check new products against it rather than against the word hypoallergenic, which is a population statement and knows nothing about them.

A worked example: choosing a moisturiser

Three moisturisers claim to be hypoallergenic. The first lists Parfum followed by Linalool, Limonene and Geraniol and contains Lavandula Angustifolia Oil: four declared allergens and an essential oil, so the claim is decorative. The second is fragrance free, has fourteen ingredients, uses a well established preservative and contains no essential oils or daisy family extracts; the brand's page says it excluded all listed fragrance allergens and was tested on a sensitive skin panel under dermatological supervision. The third says unscented and fragrance free and lists Parfum near the bottom, which is a masking fragrance, so the fragrance free claim is untrue and the hypoallergenic claim is compromised. The second is the genuinely hypoallergenic product, and a patch test on the forearm confirms it for the person choosing. The whole exercise took five minutes and two ingredient lists.

How does a brand make a hypoallergenic claim it can defend?

• Exclude fragrance entirely. No Parfum, no essential oils, no masking scent.
• Exclude ingredients with a significant sensitisation record. Certain preservatives, lanolin where relevant, daisy family botanicals.
• Keep the list short.
• Write the design rationale. What was excluded, what was chosen, why.
• Test. A human repeat insult patch test or a sensitive skin panel study, kept in the PIF.
• Never say allergy free or guaranteed.
• Have the assessor confirm the claim in the CPSR before printing it.

Phoenix's allergen review checks a formula for declared allergens and sensitisers, and a consultation before formulation tells a brand whether hypoallergenic is a claim the product can carry.

Myths we hear

• Hypoallergenic is certified. There is no certification; it is a claim the brand must substantiate.
• Hypoallergenic means I cannot react. It means lower probability for the population, not zero for you.
• Natural products are hypoallergenic. Essential oils and botanicals are among the commonest sensitisers.
• Unscented means fragrance free. A masking fragrance is still fragrance.
• Dermatologist tested means allergy tested. It means a dermatologist was involved; ask in what.

What to do this week

• Read the ingredient list of every product you use on your face for Parfum and allergen names.
• Replace the fragranced leave on products first if you react.
• Write down anything you have ever reacted to and check new lists against it.
• Patch test the next new product on your forearm for three days.
• If you keep reacting, ask a GP about a dermatology patch test.

Hypoallergenic is a useful word once you know it is a claim about design and not a promise about you. The ingredient list tells you whether the design is real. Your own skin tells you the rest.

Official sources and legislation

• Regulation (EU) No 655/2013 on cosmetic claims
• Regulation (EC) No 1223/2009 on cosmetic products, Annex III
• Cosmetic Products Enforcement Regulations 2013
• Scientific Committee on Consumer Safety (SCCS)
• OPSS guidance on cosmetic products regulations

Disclaimer: This article is general information, not legal advice. Regulations change and product decisions depend on your exact formulation, claims and market. Have your product assessed by a qualified professional before sale.