Ingredient review
PEG-40 Hydrogenated Tallow Amine
INCI: PEG-40 Hydrogenated Tallow Amine
A functional emulsifier that can help blend oils and water, but may be too heavy or irritating for sensitive or acne-prone skin.
In plain English
PEG-40 Hydrogenated Tallow Amine is a synthetic ingredient made from hydrogenated tallow (a processed animal fat) combined with PEG (polyethylene glycol). It helps oil and water mix together in products like shampoos and creams, giving them a smooth, even texture. However, because it's derived from tallow and has a moderate comedogenic rating, it might clog pores or cause irritation for some people, especially those with oily or sensitive skin.
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 moderate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- moderate
Quick decision guide
Useful, but context matters
PEG-40 Hydrogenated Tallow Amine 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.
- Step 1Start with the score, then check the irritation and clogging risk before judging PEG-40 Hydrogenated Tallow Amine.
- 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
moderateMay be fine for many users but deserves caution if you are breakout-prone.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A semi-synthetic surfactant and emulsifier created by reacting hydrogenated tallow (a solid fat from animal sources) with ethylene oxide (PEG). It is used to stabilize emulsions and reduce surface tension in water-based formulas.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable, uniform mixture. This helps products feel smooth and spread easily, and also helps other ingredients like oils or fragrances disperse evenly.
Pros
Effective emulsifier
Helps create stable, smooth mixtures of oil and water, improving product consistency and feel.
Improves texture
Adds a creamy, rich feel to cleansers and conditioners, making them more pleasant to use.
Cons and cautions
Moderate comedogenic risk
May clog pores for some users, especially those with oily or acne-prone skin, leading to breakouts.
Potential irritant
Can cause stinging or redness on sensitive or compromised skin, particularly in leave-on products.
Best for
- People with normal to dry skin looking for rich, creamy textures
- Those using rinse-off products like shampoos or body washes
Use caution if
- Individuals with oily or acne-prone skin
- Vegans or those avoiding animal-derived ingredients
- People with very sensitive or reactive skin
Usage tips
Safety summary
Generally considered safe at typical use concentrations, but may cause irritation or clog pores in sensitive or acne-prone individuals. Not recommended for those avoiding animal-derived ingredients.
Research notes
Limited peer-reviewed studies specifically on this ingredient; safety is largely based on general PEG and tallow amine data. The Cosmetic Ingredient Review (CIR) has evaluated similar PEG compounds and found them safe at low concentrations.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions, with concentration limits typically set by the manufacturer's safety assessment.
- Common uses
- Shampoos, Conditioners, Body washes, Creams
- Environmental note
- PEG compounds can be persistent in the environment and may have aquatic toxicity concerns. Tallow sourcing also raises animal welfare and sustainability questions.
Good to know
- PEG-40 Hydrogenated Tallow Amine is often found in products that need a rich, creamy lather.
- It is not biodegradable and may have environmental concerns due to the PEG component.
Common questions
What is PEG-40 Hydrogenated Tallow Amine in beauty products?
PEG-40 Hydrogenated Tallow Amine is a synthetic ingredient made from hydrogenated tallow (a processed animal fat) combined with PEG (polyethylene glycol). It helps oil and water mix together in products like shampoos and creams, giving them a smooth, even texture. However, because it's derived from tallow and has a moderate comedogenic rating, it might clog pores or cause irritation for some people, especially those with oily or sensitive skin.
What does PEG-40 Hydrogenated Tallow Amine do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable, uniform mixture. This helps products feel smooth and spread easily, and also helps other ingredients like oils or fragrances disperse evenly.
Is PEG-40 Hydrogenated Tallow Amine safe for most people?
Generally considered safe at typical use concentrations, but may cause irritation or clog pores in sensitive or acne-prone individuals. Not recommended for those avoiding animal-derived ingredients.
Who should be careful with PEG-40 Hydrogenated Tallow Amine?
Individuals with oily or acne-prone skin Vegans or those avoiding animal-derived ingredients People with very sensitive or reactive skin
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.