Ingredient review

PEG-15 Tallate

INCI: PEG-15 TALLATE

PEG-15 Tallate is a workhorse emulsifier that helps mix oil and water, but it may be mildly irritating for sensitive skin and has moderate comedogenic potential.

beautyskincaresurfactant

In plain English

PEG-15 Tallate is a synthetic ingredient that helps oil and water stay mixed together in products like cleansers and lotions. It is made from tall oil, a byproduct of paper manufacturing, and then processed with ethylene oxide to create a PEG (polyethylene glycol) compound. While effective at creating smooth, stable formulas, it can be slightly drying or irritating for some people, especially those with very sensitive or acne-prone skin.

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.

Main practical flags: irritation is moderate; clogging risk is moderate.

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

Quick decision guide

Useful, but context matters

PEG-15 Tallate can be useful, but watch for some irritation potential and possible clogging concerns.

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 PEG-15 Tallate.
  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

moderate

Can bother some users, especially with frequent use, damaged skin, or strong companion ingredients.

Clogging risk

moderate

May be fine for many users but deserves caution if you are breakout-prone.

Evidence level

moderate

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

What it is

PEG-15 Tallate is a semi-synthetic emulsifier created by reacting tall oil fatty acids with approximately 15 units of ethylene oxide. It belongs to the PEG (polyethylene glycol) family and is used primarily to stabilize oil-in-water emulsions.

How it works

In a cosmetic product, PEG-15 Tallate reduces the surface tension between oil and water molecules, allowing them to mix into a stable, uniform cream or lotion. It also helps cleanse by trapping dirt and oil so they can be rinsed away.

Pros

Effective emulsifier

PEG-15 Tallate reliably blends oil and water, giving creams and cleansers a smooth, uniform texture that feels pleasant on the skin.

Versatile in formulations

It works well in a variety of rinse-off products like shampoos and body washes, helping them foam and cleanse without feeling greasy.

Cons and cautions

Potential for irritation

As a surfactant, it can strip natural oils and cause mild dryness or stinging, especially for those with compromised skin barriers.

Moderate comedogenic risk

Some users may find that products with PEG-15 Tallate contribute to clogged pores or breakouts, so it's not ideal for acne-prone skin.

Best for

  • People with normal to oily skin looking for effective cleansers
  • Those who tolerate mild surfactants well

Use caution if

  • Individuals with very sensitive or reactive skin
  • Those prone to clogged pores or acne

Usage tips

Use in rinse-off products rather than leave-on creams to minimize potential irritation.
Pair with soothing ingredients like aloe or panthenol if you have mildly sensitive skin.
Avoid using high concentrations (above 5%) in leave-on formulas.

Safety summary

PEG-15 Tallate is considered safe for cosmetic use at typical concentrations. However, like many PEGs, it may contain trace amounts of 1,4-dioxane (a potential carcinogen) from manufacturing. Reputable brands purify their ingredients to remove impurities. Overall, it is low-risk for most people but not ideal for very sensitive or acne-prone skin.

Research notes

Studies on PEG compounds indicate low acute toxicity and skin irritation at low concentrations. The Cosmetic Ingredient Review (CIR) panel has evaluated PEGs and found them safe when formulated to minimize impurities. Specific data on PEG-15 Tallate is limited, but it is considered similar to other PEG fatty acid esters.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics by the FDA and EU CosIng database, with no specific restrictions at typical concentrations.
Common uses
Cleansers, Shampoos, Body washes, Emulsions
Environmental note
PEG compounds are generally biodegradable, but their production involves ethylene oxide, which is derived from fossil fuels. Tall oil is a renewable byproduct, reducing waste.

Good to know

  • PEG-15 Tallate is often found in sulfate-free cleansers as a milder alternative to SLS.
  • The '15' refers to the average number of ethylene oxide units, which affects its water solubility and mildness.

Common questions

What is PEG-15 Tallate in beauty products?

PEG-15 Tallate is a synthetic ingredient that helps oil and water stay mixed together in products like cleansers and lotions. It is made from tall oil, a byproduct of paper manufacturing, and then processed with ethylene oxide to create a PEG (polyethylene glycol) compound. While effective at creating smooth, stable formulas, it can be slightly drying or irritating for some people, especially those with very sensitive or acne-prone skin.

What does PEG-15 Tallate do in a beauty product?

In a cosmetic product, PEG-15 Tallate reduces the surface tension between oil and water molecules, allowing them to mix into a stable, uniform cream or lotion. It also helps cleanse by trapping dirt and oil so they can be rinsed away.

Is PEG-15 Tallate safe for most people?

PEG-15 Tallate is considered safe for cosmetic use at typical concentrations. However, like many PEGs, it may contain trace amounts of 1,4-dioxane (a potential carcinogen) from manufacturing. Reputable brands purify their ingredients to remove impurities. Overall, it is low-risk for most people but not ideal for very sensitive or acne-prone skin.

Who should be careful with PEG-15 Tallate?

Individuals with very sensitive or reactive skin Those prone to clogged pores or acne

Research sources

Cosmetic Ingredient Review (CIR) - Safety of PEGsOpenEU CosIng Database - PEG-15 TallateOpenPubChem - PEG-15 TallateOpenFDA - Cosmetics IngredientsOpen

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.