Ingredient review

Polyoxymethylene Glycol Urea

INCI: POLYOXYMETHYLENE GLYCOL UREA

A synthetic humectant that helps hydrate the skin and improve the feel of cosmetic products, with a good safety profile for most skin types.

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In plain English

Polyoxymethylene glycol urea is a lab-made ingredient that helps your skin hold onto moisture. It works like a sponge, pulling water into the outer layer of your skin and also forms a very light, invisible film that helps keep that moisture from evaporating too quickly. You'll often find it in moisturizers and serums where it also helps make the product feel smooth and spread easily.

Review score

Safety, usefulness, and evidence

3.8Good
3.8/ 5

Potentially useful with some tradeoffs

The evidence base is useful, but some claims depend heavily on the formula.

Risk flags are low for most users, though the finished product can still irritate.

Source
synthetic
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Useful, but context matters

Polyoxymethylene Glycol Urea is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Polyoxymethylene Glycol Urea.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A synthetic polymer derived from urea and formaldehyde, modified with glycol groups to create a water-soluble humectant and film-forming agent used in cosmetics.

How it works

It attracts water molecules from the environment or deeper skin layers (humectant action) and deposits a thin, flexible film on the skin's surface that reduces water loss (occlusive-like effect). This dual action helps maintain skin hydration and improves the sensory feel of formulations.

Pros

Lightweight hydration

Provides moisture without the heavy or sticky feel that some humectants can leave, making it ideal for daytime use or under makeup.

Improves product feel

Helps creams and serums spread more smoothly and evenly, enhancing the overall user experience of your skincare routine.

Cons and cautions

Synthetic origin

As a lab-created ingredient, it may not be preferred by those seeking exclusively natural or plant-based skincare options.

Less researched than alternatives

Compared to well-studied humectants like glycerin or hyaluronic acid, there is less independent research on its long-term skin benefits.

Best for

  • People with normal to combination skin looking for lightweight hydration
  • Anyone who wants a smooth, non-sticky feel from their moisturizer

Use caution if

  • Those with known sensitivity to formaldehyde-releasing preservatives (though the ingredient itself is not a preservative)

Usage tips

Apply products containing this ingredient to slightly damp skin to maximize its water-attracting ability.
Layer with a richer moisturizer if you have very dry skin, as its film-forming effect is light.

Safety summary

Polyoxymethylene glycol urea is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. Those with extreme sensitivities should patch test, as with any new ingredient.

Research notes

Research on this specific ingredient is limited, but it belongs to a family of urea-formaldehyde polymers that have been reviewed by safety panels and found safe for cosmetic use. Its humectant and film-forming properties are well understood from formulation science.

Common label clues

Typical concentration
Typically 0.5% to 3% in leave-on products
Regulatory status
Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) panel has evaluated related urea-formaldehyde polymers and found them safe at typical use levels.
Common uses
Moisturizers, Serums, Creams, Lotions
Environmental note
As a synthetic polymer, its biodegradability is lower than natural humectants. However, it is used in small amounts and is not considered a major environmental concern.

Good to know

  • Despite its chemical name, polyoxymethylene glycol urea is not a preservative and does not release formaldehyde in cosmetic formulations.
  • It is often used in combination with other humectants to create a multi-layered hydration effect.

Common questions

What is Polyoxymethylene Glycol Urea in beauty products?

Polyoxymethylene glycol urea is a lab-made ingredient that helps your skin hold onto moisture. It works like a sponge, pulling water into the outer layer of your skin and also forms a very light, invisible film that helps keep that moisture from evaporating too quickly. You'll often find it in moisturizers and serums where it also helps make the product feel smooth and spread easily.

What does Polyoxymethylene Glycol Urea do in a beauty product?

It attracts water molecules from the environment or deeper skin layers (humectant action) and deposits a thin, flexible film on the skin's surface that reduces water loss (occlusive-like effect). This dual action helps maintain skin hydration and improves the sensory feel of formulations.

Is Polyoxymethylene Glycol Urea safe for most people?

Polyoxymethylene glycol urea is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. Those with extreme sensitivities should patch test, as with any new ingredient.

Who should be careful with Polyoxymethylene Glycol Urea?

Those with known sensitivity to formaldehyde-releasing preservatives (though the ingredient itself is not a preservative)

Research sources

Cosmetic Ingredient Review (CIR) - Safety Assessment of Urea-Formaldehyde PolymersOpenEuropean Chemicals Agency (ECHA) - Polyoxymethylene Glycol Urea InformationOpenPubMed - Humectants in Cosmetics: A ReviewOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.