Ingredient review
PEG-5 Tallow Amide
INCI: PEG-5 TALLOW AMIDE
An effective but dated cleansing ingredient that can be drying for some skin types; better options exist today.
In plain English
PEG-5 Tallow Amide is a soap-like ingredient made from animal fat and a petrochemical called ethylene oxide. It helps cleansers foam up and remove dirt and oil, but it can strip the skin's natural moisture barrier if used too often. It's not as gentle as modern alternatives like coco-glucoside or decyl glucoside.
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-5 Tallow Amide 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-5 Tallow Amide.
- 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
A semi-synthetic surfactant created by reacting tallow (rendered beef or mutton fat) with ethylene oxide. It belongs to the PEG (polyethylene glycol) family of emulsifiers and is commonly used in rinse-off cleansing products.
How it works
It reduces the surface tension between water and oil, allowing them to mix. This helps lift dirt, sebum, and makeup from the skin so they can be rinsed away. Its foaming properties make it popular in shampoos and body washes.
Pros
Strong cleanser
Effectively removes excess oil, dirt, and some makeup, making it useful for oily skin types.
Good foam
Produces a rich, creamy lather that many people associate with a satisfying clean.
Cons and cautions
Can be drying
May strip the skin's natural oils, leading to tightness, flakiness, or irritation, especially with frequent use.
Not vegan-friendly
Derived from animal fat, which may be a concern for those seeking plant-based or cruelty-free options.
Best for
- People with oily or normal skin who want a deep-cleansing product
- Those who tolerate traditional soap-based cleansers well
Use caution if
- People with dry, sensitive, or eczema-prone skin
- Vegans and those avoiding animal-derived ingredients
Usage tips
Safety summary
Generally considered safe for occasional use in rinse-off products, but may cause dryness or irritation with frequent use, especially for sensitive skin. The ethoxylation process raises minor concerns about 1,4-dioxane contamination, though levels are regulated.
Research notes
Limited direct studies on PEG-5 Tallow Amide specifically. Research on similar PEG surfactants indicates low acute toxicity but potential for skin barrier disruption with repeated use. The Cosmetic Ingredient Review (CIR) has evaluated related PEG compounds and found them safe at low concentrations in rinse-off products.
Common label clues
- Typical concentration
- Typically 0.5–5% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) at typical concentrations. The EU restricts 1,4-dioxane levels in finished products.
- Common uses
- Cleansers, Shampoos, Conditioners, Bar soaps
- Environmental note
- Derived from animal agriculture byproducts; not biodegradable in all formulations. Plant-based alternatives have a lower environmental footprint.
Good to know
- PEG-5 Tallow Amide is an older ingredient; many modern formulations have replaced it with gentler plant-based alternatives.
- The 'PEG' part means it has been processed with ethylene oxide, which can sometimes create trace amounts of 1,4-dioxane, a potential contaminant.
Common questions
What is PEG-5 Tallow Amide in beauty products?
PEG-5 Tallow Amide is a soap-like ingredient made from animal fat and a petrochemical called ethylene oxide. It helps cleansers foam up and remove dirt and oil, but it can strip the skin's natural moisture barrier if used too often. It's not as gentle as modern alternatives like coco-glucoside or decyl glucoside.
What does PEG-5 Tallow Amide do in a beauty product?
It reduces the surface tension between water and oil, allowing them to mix. This helps lift dirt, sebum, and makeup from the skin so they can be rinsed away. Its foaming properties make it popular in shampoos and body washes.
Is PEG-5 Tallow Amide safe for most people?
Generally considered safe for occasional use in rinse-off products, but may cause dryness or irritation with frequent use, especially for sensitive skin. The ethoxylation process raises minor concerns about 1,4-dioxane contamination, though levels are regulated.
Who should be careful with PEG-5 Tallow Amide?
People with dry, sensitive, or eczema-prone skin Vegans and those avoiding animal-derived 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.