Ingredient review

PEG-28 Glyceryl Tallowate

INCI: PEG-28 Glyceryl Tallowate

A workhorse emulsifier that helps oil and water mix, but its animal-derived origin and PEG processing raise concerns for some users.

beautyskincareemulsifier

In plain English

PEG-28 Glyceryl Tallowate is an ingredient that helps oil and water stay blended in products like lotions and cleansers. It's made from tallow (rendered animal fat) that has been chemically modified with PEG (polyethylene glycol) chains. This makes it effective at creating smooth, stable creams, but the use of animal byproducts and potential traces of processing impurities (like 1,4-dioxane) mean it's not for everyone.

Review score

Safety, usefulness, and evidence

3.5Good

3.5/ 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: semi synthetic
Evidence: moderate
Irritation: low
Clogging risk: low

How reviews are scored

Quick decision guide

Useful, but context matters

PEG-28 Glyceryl Tallowate 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.

Step 1Start with the score, then check the irritation and clogging risk before judging PEG-28 Glyceryl Tallowate.
Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
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 semi-synthetic emulsifier created by reacting glyceryl tallowate (a fat from animal tallow) with about 28 units of ethylene oxide (PEG). It belongs to the PEG ester family and is valued for its ability to stabilize water-in-oil or oil-in-water emulsions.

How it works

Its molecule has a water-loving (PEG) end and a fat-loving (tallow) end. When added to a formula, it positions itself at the boundary between oil and water droplets, reducing surface tension so they mix evenly instead of separating. This gives creams and lotions a smooth, uniform texture.

Pros

Effective emulsifier

Stabilizes oil and water mixtures well, preventing separation and giving products a consistent, creamy feel.

Cost-efficient

Common in many affordable skincare and cosmetic products, making it accessible for everyday use.

Cons and cautions

Animal-derived source

Made from tallow (animal fat), so it's not suitable for vegans or those avoiding animal byproducts.

PEG processing concerns

The manufacturing process can leave trace amounts of 1,4-dioxane, a potential carcinogen, though levels are typically low and regulated.

Best for

People using conventional drugstore or department store creams and cleansers
Those not concerned with vegan or animal-derived ingredients

Use caution if

Vegans and vegetarians
Anyone seeking a fully natural or plant-based routine
Those with very oily or acne-prone skin (may prefer lighter emulsifiers)

Usage tips

Check the full ingredient list if you follow a vegan or vegetarian lifestyle – look for plant-based emulsifiers instead.

If you have sensitive skin, patch test products containing PEG compounds, as some individuals may react to trace impurities.

Use in rinse-off products (like cleansers) rather than leave-on creams if you prefer minimal exposure to PEG derivatives.

Safety summary

Generally considered safe at typical cosmetic concentrations. The main concerns are its animal origin and potential trace impurities from PEG processing. Regulatory bodies set limits on 1,4-dioxane, and most products on the market meet these standards.

Research notes

Studies on PEG compounds indicate low acute toxicity and skin irritation at low concentrations. The Cosmetic Ingredient Review (CIR) panel has reviewed PEG derivatives and found them safe as used, with the caveat that manufacturers should minimize 1,4-dioxane. No specific studies on PEG-28 Glyceryl Tallowate alone were found.

Common label clues

Typical concentration: 0.5% to 5%
Regulatory status: Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific restrictions, though manufacturers are encouraged to minimize 1,4-dioxane levels.
Common uses: Cleansers, Lotions, Creams, Makeup removers
Environmental note: Tallow is a byproduct of the meat industry, so its use can be seen as reducing waste, but the PEG portion is not readily biodegradable in all environments.

Good to know

PEG-28 Glyceryl Tallowate is often found in drugstore moisturizers and makeup removers.
The number '28' refers to the average length of the PEG chain, which affects its water solubility and emulsifying strength.
Some brands now avoid PEG compounds due to consumer concerns, opting for naturally derived emulsifiers.

Common questions

What is PEG-28 Glyceryl Tallowate in beauty products?

What does PEG-28 Glyceryl Tallowate do in a beauty product?

Is PEG-28 Glyceryl Tallowate safe for most people?

Who should be careful with PEG-28 Glyceryl Tallowate?

Vegans and vegetarians Anyone seeking a fully natural or plant-based routine Those with very oily or acne-prone skin (may prefer lighter emulsifiers)

Research sources

Cosmetic Ingredient Review – Safety of PEGsOpen FDA – 1,4-Dioxane in CosmeticsOpen PubChem – PEG-28 Glyceryl TallowateOpen

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.