PEG-10 Isostearate
A nonionic emulsifier from isostearic acid. It blends oil with water and stabilizes the formula. Well tolerated.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
PEG-10 isostearate (same INCI) is a non-ionic emulsifier derived from isostearic acid. It blends water and oil and keeps the formula uniform and stable. On efficacy, this is a functional component, not a skincare active. It gives structure to the emulsion. The effect on skin depends on the other ingredients in the formula, not on this one. During pregnancy and breastfeeding it is fine to use topically. Tolerance is good: low irritation and low allergy potential, with a mild surfactant character. At usual levels it does not dry out skin and suits sensitive skin. An individual reaction is possible but uncommon.
Frequently asked questions
Is PEG-10 Isostearate safe during pregnancy?
PEG-10 Isostearate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is PEG-10 Isostearate for?
PEG-10 Isostearate suits: normal, dry, combination, oily, sensitive.
What is PEG-10 Isostearate and what does it do in cosmetics?
A nonionic emulsifier from isostearic acid.
What's the INCI name for PEG-10 Isostearate?
The INCI name is PEG-10 Isostearate.
See PEG-10 Isostearate in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
Other functional ingredients
PEG-10 Phytosterol, PEG-100 Stearate, PEG-12, PEG-12 Dimethicone, PPG-26-Buteth-26, Tetrasodium EDTA, Caramel, Glyceryl Cocoate
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