Phenoxyethanol in skincare and baby products: what it is, and is it safe?

This is the fourth in our series on common ingredients worth knowing about, after triethanolamine, diethanolamine and methylisothiazolinone. Phenoxyethanol is the one you'll find most often: it's in a very large share of the "paraben-free" skincare, baby products and natural-looking brands on South African shelves. It also has the loudest online reputation, with claims ranging from "nervous system toxin" to "perfectly safe". Both of those come from real documents. Here's what they actually say.

What is phenoxyethanol?

Phenoxyethanol (2-phenoxyethanol on a datasheet) is a glycol ether: a clear, slightly oily liquid with a faint rose smell. It occurs naturally in tiny amounts in green tea and chicory, but the ingredient in your moisturiser is made synthetically. Its job is to stop bacteria, yeast and mould growing in anything water-based, and it's been used for that for decades. It took off in the late 2000s, when brands dropped parabens and needed something to replace them. Today it's probably the most widely used preservative in cosmetics worldwide.

It's also used as a solvent in some inks and paints, as a fish anaesthetic in aquaculture, and as a preservative in some vaccines and ultrasound gel. That spread of uses is part of why the safety data on it is unusually good.

Where you'll find it

Almost anywhere water meets skin: moisturisers, sunscreens, serums, foundation and other make-up, shampoo and conditioner, body wash, baby lotion and baby wipes, wet wipes generally, hand cream, some "natural" and "organic-style" ranges, and sanitiser gels. Because it works across a wide pH range and doesn't react with much, formulators reach for it first. If a label says "paraben-free" and the product is a cream or lotion, it very likely contains phenoxyethanol.

How to spot it on a label

• Phenoxyethanol is the INCI name, and it's usually what's printed
• 2-phenoxyethanol, ethylene glycol monophenyl ether or phenoxytol on technical and medical labels
• Trade names on raw-material datasheets include Phenoxetol, Euxyl PE 9010 (phenoxyethanol with ethylhexylglycerin) and Optiphen (phenoxyethanol with caprylyl glycol). Consumer products should still list it under its INCI name.

It usually sits in the bottom third of the ingredient list, which tells you it's in there at a small percentage. Legally, in the EU and South Africa, it can't be more than 1% of the product.

Is phenoxyethanol safe? What the research actually says

The main safety review says yes, at 1% or less. The EU's Scientific Committee on Consumer Safety went through the full animal and human data in 2016 and concluded that phenoxyethanol is safe for all consumers, including children of all ages, at up to 1% in cosmetics. That is the limit written into EU cosmetics law and copied into the South African standard. The US industry panel reached the same conclusion in 1990 and again in 2011.

Where the "nervous system toxin" claim comes from. In 2008 the US FDA warned nursing mothers off a nipple cream that contained phenoxyethanol together with chlorphenesin, a muscle relaxant. The concern was infants swallowing it: both ingredients can depress the central nervous system, and phenoxyethanol can cause vomiting and diarrhoea if ingested. No infant injuries were reported, and the product was reformulated. That one warning is the root of most of the alarm online. It's a real document, but it's about a baby swallowing a leave-on cream from the breast, not about phenoxyethanol on adult skin.

The animal data. At very high doses in rats and rabbits, phenoxyethanol has caused red-blood-cell damage, and in some studies effects on reproduction and development. The 2019 safety review in the Journal of the European Academy of Dermatology and Venereology puts those doses at roughly 200 times what a person gets from using cosmetics. That is why the regulators set a 1% limit rather than banning it. One honest caveat: that review was funded by a cosmetics industry group. Its conclusions match the independent EU committee, but you should know who paid.

What happens in your body. A 2024 German volunteer study gave people a measured dose by mouth and by skin and tracked it. Phenoxyethanol is absorbed quickly, converted mainly to phenoxyacetic acid, and most of it is out in the urine within 48 hours. It doesn't accumulate. Three of the authors work for a company that makes it; the measurements are straightforward and have been reproduced.

Allergy. This is where phenoxyethanol differs sharply from MI. In the large German-speaking patch-test network (over 80,000 patients tested on the preservative series), fewer than 1 in 100 reacted to phenoxyethanol, against more than 1 in 50 for the isothiazolinones. Dermatologists describe it as a rare sensitiser and one of the best-tolerated preservatives in use. Allergy does happen, including occasional hand eczema in people with heavy occupational exposure, and a handful of case reports of contact urticaria (immediate hives), including from ultrasound gel. It's uncommon enough that it isn't in the standard patch-test series; you have to ask for it.

Irritation. At the 1% limit, phenoxyethanol can sting on broken or eczema-prone skin and around the eyes. That's irritation, not allergy, and it stops when you stop using the product.

What it isn't. There is no credible evidence that phenoxyethanol causes cancer, and it isn't classified as a carcinogen by any regulator. Claims that it is an "endocrine disruptor" rest on the high-dose animal reproduction studies above, not on any human evidence at cosmetic doses.

The one group the experts still argue about: babies under 3

France's medicines agency has been the sceptic. In 2012 it recommended that phenoxyethanol not be used in products for the nappy area of babies, and be capped at 0.4% in other products for under-3s. The EU committee disagreed in 2016 and kept 1% for all ages. France convened its own expert panel again in 2018, which agreed the 1% cap was fine for most children's products but kept the nappy-area advice, and extended it to wipes.

The result, from December 2019, is that leave-on cosmetics sold in France containing phenoxyethanol must carry a label saying they're not to be used on the nappy area of children aged 3 and under. A French court later struck down the 2012 0.4% recommendation, and the cosmetics industry challenged the labelling rule; as far as we can establish, that challenge is still in progress. The reasoning behind the nappy-area caution is sensible even if the evidence is thin: that skin is occluded, often inflamed, and the product isn't rinsed off, so absorption is highest there.

What the rules are

European Union. Permitted as a preservative at up to 1%. No restriction by product type or age at EU level.

France. Same 1% cap, plus the nappy-area warning on leave-on products since 20 December 2019 (see above).

United States. No legal limit; in practice formulators follow the 1% convention. The FDA's 2008 warning applied to 1 product.

Japan. Capped at 1%, like the EU.

South Africa. The SANS cosmetics standard adopts the EU annexes, so 1% is the limit here too. Enforcement is light, and imported products from markets without a limit are common, but phenoxyethanol is cheap enough that there's no incentive to overdose it, and we're not aware of products being found over the limit.

So should you avoid it?

For most adults, no. Of the preservatives you could reasonably find in a cream, this is one of the better-studied and better-tolerated. If you've been avoiding parabens and MI, swapping in a phenoxyethanol product is a step up, not down. The practical exceptions:

1. Nappy-area products for babies under 3. Follow the French advice: pick a barrier cream and wipes without phenoxyethanol for that job, or use water and a cloth. The rest of a baby's skin is covered by the 1% limit.
2. Anything a baby might swallow. Nipple creams and lip products used while breastfeeding. The 2008 warning was about exactly this.
3. If you have unexplained eczema that doesn't settle and your products all contain it, ask your dermatologist to add phenoxyethanol to your patch test. It's rare, but it's a known cause, and it won't be picked up by the standard series.
4. Stinging around the eyes or on broken skin. That's irritation at the 1% level. Choose products where it sits lower in the list, or a different preservative system.

What you don't need to do is treat "contains phenoxyethanol" as a reason to bin a product. The ingredient lists that should worry you more are the ones with isothiazolinones, formaldehyde releasers, or no preservative at all in a water-based cream, which is a microbiology problem waiting to happen.

Frequently asked questions

Is phenoxyethanol a paraben?
No. It's a different chemical family (a glycol ether), and it was adopted largely as a paraben replacement. "Paraben-free" products very often contain it.

Is it natural?
Trace amounts occur in green tea and chicory, which is why some brands call it "naturally derived". The ingredient in cosmetics is manufactured from phenol and ethylene oxide. It isn't natural in any meaningful sense, and it doesn't need to be: the safety case rests on the testing, not the origin.

Is it safe in pregnancy?
The EU assessment covers all consumers and doesn't exclude pregnancy. The reproductive effects seen in animals were at doses far above cosmetic exposure. If you'd rather not, the simplest step is to avoid leave-on products with it; rinse-off exposure is a fraction of that.

Is it in vaccines?
Some, in very small amounts, as a preservative. That use is regulated separately as a medicine and isn't what this article is about.

What should a product use instead?
True soap needs nothing. For creams and lotions, the realistic options are phenoxyethanol at 1% or less, the organic acids (sodium benzoate, potassium sorbate) at a low pH, or ethylhexylglycerin and caprylyl glycol as boosters. "Preservative-free" water-based creams should be treated with suspicion, not relief.

The sources

• Scientific Committee on Consumer Safety (2016). Opinion on phenoxyethanol, SCCS/1575/16, final version 6 October 2016. Safe at a maximum of 1.0% for all age groups. Read it →
• Dréno B, Zuberbier T, Gelmetti C, Gontijo G, Marinovich M (2019). Safety review of phenoxyethanol when used as a preservative in cosmetics. Journal of the European Academy of Dermatology and Venereology 33(Suppl 7):15–24. Industry-funded. View →
• Schnuch A, Lessmann H, Geier J, Uter W (2011). Contact allergy to preservatives: analysis of IVDK data 1996–2009. British Journal of Dermatology 164:1316–1325. View →
• Kolodziej M, Kiewert A, Skudlik C, Brans R (2022). Allergic contact dermatitis to phenoxyethanol: a rare, but possible cause of hand dermatitis. Contact Dermatitis 86:319–320. View →
• Eckert E, Jäger T, Hiller J, Leibold E, Bader M, Göen T (2024). Biotransformation and toxicokinetics of 2-phenoxyethanol after oral exposure in humans: a volunteer study. Archives of Toxicology 98:1771–1780. 3 authors employed by a manufacturer. View →
• ANSM (2019). Leave-on cosmetic products containing phenoxyethanol should not be used on the nappy area of children aged 3 and under: decision of 13 March 2019, and the December 2019 update after the Council of State ruling. Read it →
• Reuters (23 May 2008). FDA says nipple cream could harm infants. Report of the FDA warning on a product containing chlorphenesin and phenoxyethanol. Read it →
• Cosmetic Ingredient Review Expert Panel (1990). Final report on the safety assessment of phenoxyethanol. Journal of the American College of Toxicology 9(2):259–278. View →

Find out more

• Cocamidopropyl betaine: the "allergen of the year" that probably isn't
• Methylisothiazolinone (MI): the allergy epidemic explained
• Triethanolamine: dangers, side effects and is it safe?
• Diethanolamine (DEA) and cocamide DEA: dangers and is it safe?
• Commercial soap ingredients: what's really in your bottle

This article is general information, not medical advice. If you have a skin reaction that doesn't settle, see a doctor or dermatologist and ask about patch testing.

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