Ingredient review
PEG-16 Tallate
INCI: PEG-16 TALLATE
PEG-16 Tallate is a functional emulsifier that helps mix oil and water, but its PEG component and potential impurities raise mild safety considerations.
In plain English
PEG-16 Tallate is a semi-synthetic ingredient made by attaching a chain of ethylene oxide (PEG) to tall oil fatty acids (a byproduct of wood pulp processing). In skincare, it acts as an emulsifier, meaning it helps oil and water blend together so products like lotions and cleansers stay smooth and don't separate. It also has mild cleansing properties. While it is effective, some people prefer to avoid PEG compounds due to concerns about potential contamination with 1,4-dioxane during manufacturing, though reputable brands purify their ingredients to minimize this risk.
Review score
Safety, usefulness, and evidence
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 low.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PEG-16 Tallate can be useful, but watch for some irritation potential.
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-16 Tallate.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
PEG-16 Tallate is a polyethylene glycol (PEG) derivative of tall oil fatty acids. Tall oil is a natural byproduct of the paper industry, and the PEG chain is added synthetically to create a water-soluble emulsifier. The number '16' refers to the average number of ethylene oxide units in the PEG chain, which influences its solubility and mildness.
How it works
In a cosmetic product, PEG-16 Tallate reduces the surface tension between oil and water, allowing them to form a stable emulsion. This prevents the product from separating into layers. It also helps disperse oils in water-based formulas, making it useful in cleansers where it can help lift dirt and oil from the skin.
Pros
Effective emulsifier
Helps oil and water mix smoothly, giving lotions and creams a consistent texture that doesn't separate.
Mild cleansing
Provides gentle cleansing action in soaps and washes, making it suitable for daily use without stripping the skin.
Cons and cautions
PEG-related concerns
As a PEG compound, it may be contaminated with 1,4-dioxane during production, though reputable manufacturers purify it to safe levels.
Potential irritation
At higher concentrations or in leave-on products, it may cause mild irritation for those with sensitive skin.
Best for
- People using rinse-off cleansers or soaps
- Those who tolerate standard emulsifiers well
Use caution if
- Individuals with very sensitive or reactive skin who prefer PEG-free formulas
Usage tips
Safety summary
PEG-16 Tallate is considered safe in cosmetics when properly purified. The main safety concern is potential contamination with 1,4-dioxane, a possible carcinogen, but reputable suppliers use vacuum stripping to remove it. The Cosmetic Ingredient Review (CIR) has evaluated similar PEG compounds and found them safe for use in cosmetics at typical concentrations.
Research notes
Research on PEG-16 Tallate specifically is limited, but studies on PEG derivatives and tall oil fatty acids indicate they are generally safe and effective as emulsifiers. The CIR has reviewed PEG compounds and concluded they are safe when formulated to minimize impurities. No recent peer-reviewed studies specifically address PEG-16 Tallate in skincare.
Common label clues
- Typical concentration
- 1–5% in rinse-off products; lower in leave-on products
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific restrictions, though manufacturers are expected to limit 1,4-dioxane impurities.
- Common uses
- Cleansers, Emulsions, Soaps
- Environmental note
- Tall oil is a renewable byproduct of the paper industry, but the PEG chain is synthetic and may have moderate biodegradability.
Good to know
- PEG-16 Tallate is not commonly found in 'clean' or natural beauty lines due to its synthetic PEG component
- The tall oil source is a renewable byproduct, making it more sustainable than some petroleum-based emulsifiers
Common questions
What is PEG-16 Tallate in beauty products?
PEG-16 Tallate is a semi-synthetic ingredient made by attaching a chain of ethylene oxide (PEG) to tall oil fatty acids (a byproduct of wood pulp processing). In skincare, it acts as an emulsifier, meaning it helps oil and water blend together so products like lotions and cleansers stay smooth and don't separate. It also has mild cleansing properties. While it is effective, some people prefer to avoid PEG compounds due to concerns about potential contamination with 1,4-dioxane during manufacturing, though reputable brands purify their ingredients to minimize this risk.
What does PEG-16 Tallate do in a beauty product?
In a cosmetic product, PEG-16 Tallate reduces the surface tension between oil and water, allowing them to form a stable emulsion. This prevents the product from separating into layers. It also helps disperse oils in water-based formulas, making it useful in cleansers where it can help lift dirt and oil from the skin.
Is PEG-16 Tallate safe for most people?
PEG-16 Tallate is considered safe in cosmetics when properly purified. The main safety concern is potential contamination with 1,4-dioxane, a possible carcinogen, but reputable suppliers use vacuum stripping to remove it. The Cosmetic Ingredient Review (CIR) has evaluated similar PEG compounds and found them safe for use in cosmetics at typical concentrations.
Who should be careful with PEG-16 Tallate?
Individuals with very sensitive or reactive skin who prefer PEG-free formulas
Research sources
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.