Ingredient review
PEG-20 Tallate
INCI: PEG-20 TALLATE
PEG-20 Tallate is an effective emulsifier but may cause irritation for sensitive skin and raises ethical concerns due to its animal-derived source.
In plain English
PEG-20 Tallate is a synthetic ingredient made by attaching polyethylene glycol (PEG) to tallow fatty acids (from animal fat). It helps oil and water mix together in products like cleansers and lotions, creating a smooth texture. While it works well, it can be drying or irritating for some people, and its animal origin may not suit everyone.
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-20 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-20 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-20 Tallate is a semi-synthetic compound created by reacting polyethylene glycol (PEG) with tallow fatty acids, which are derived from animal fat. It belongs to the PEG family of emulsifiers and surfactants.
How it works
In a cosmetic product, PEG-20 Tallate reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. It also helps remove dirt and oil from the skin or hair by trapping them in micelles that rinse away with water.
Pros
Effective emulsifier
PEG-20 Tallate reliably blends oil and water, giving lotions and creams a smooth, uniform texture that feels pleasant on the skin.
Good cleansing power
It helps remove excess oil, makeup, and impurities from the skin and hair, making it useful in shampoos and facial cleansers.
Cons and cautions
Potential irritation
For people with sensitive or compromised skin, PEG-20 Tallate can cause stinging, redness, or dryness, especially in leave-on products.
Animal-derived source
Because it is made from tallow (animal fat), it is not suitable for vegans or those who prefer plant-based or synthetic alternatives.
Best for
- People with normal to oily skin looking for effective cleansers
- Those using rinse-off products like shampoos and body washes
Use caution if
- Individuals with sensitive, dry, or eczema-prone skin
- Those seeking vegan or plant-based ingredients
Usage tips
Safety summary
PEG-20 Tallate is generally considered safe for use in cosmetics at typical concentrations, but it can cause mild to moderate irritation in sensitive individuals. Its safety profile is similar to other PEG-based emulsifiers, and it is not known to be comedogenic.
Research notes
Research on PEG-20 Tallate specifically is limited, but studies on PEG compounds and tallow derivatives indicate low acute toxicity and moderate skin irritation potential. The Cosmetic Ingredient Review (CIR) has evaluated related PEGs and found them safe when formulated to minimize irritation.
Common label clues
- Typical concentration
- Typically 0.5–5% in rinse-off products; lower in leave-on formulas
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific concentration restrictions, but formulators are advised to minimize irritation potential.
- Common uses
- Cleansers, Shampoos, Body washes, Lotions
- Environmental note
- PEG compounds can be biodegradable, but the animal-derived source raises sustainability concerns compared to plant-based alternatives.
Good to know
- PEG-20 Tallate is often listed near the middle or end of ingredient lists, indicating moderate usage levels.
- The '20' in its name refers to the average number of ethylene glycol units in the PEG chain, which affects its water solubility.
Common questions
What is PEG-20 Tallate in beauty products?
PEG-20 Tallate is a synthetic ingredient made by attaching polyethylene glycol (PEG) to tallow fatty acids (from animal fat). It helps oil and water mix together in products like cleansers and lotions, creating a smooth texture. While it works well, it can be drying or irritating for some people, and its animal origin may not suit everyone.
What does PEG-20 Tallate do in a beauty product?
In a cosmetic product, PEG-20 Tallate reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. It also helps remove dirt and oil from the skin or hair by trapping them in micelles that rinse away with water.
Is PEG-20 Tallate safe for most people?
PEG-20 Tallate is generally considered safe for use in cosmetics at typical concentrations, but it can cause mild to moderate irritation in sensitive individuals. Its safety profile is similar to other PEG-based emulsifiers, and it is not known to be comedogenic.
Who should be careful with PEG-20 Tallate?
Individuals with sensitive, dry, or eczema-prone skin Those seeking vegan or plant-based ingredients
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.