Isostearyl Neopentanoate
An emollient ester. It softens and gives a light, dry slip without a greasy film. Well tolerated.
Evidence by route
Topical application
A functional emollient. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Isostearyl neopentanoate (INCI Isostearyl Neopentanoate) is a synthetic emollient ester. In a formula it softens skin and gives a dry, light slip without the greasy film that some oils leave behind. It is common in silky-feel creams and makeup. Its role is texture support, not treatment. It improves the feel and spreadability of a product, but it does not act on wrinkles, pigment or inflammation. As an emollient it performs well and claims nothing more. Systemic exposure from topical use is minimal, so it can be used in pregnancy and breastfeeding. Tolerance is good: irritation and allergy risk are low, suitable for sensitive skin. Its comedogenicity is moderate-low (2 out of 5), so very oily or acne-prone skin should watch how it responds. It does not dry the skin.
Frequently asked questions
Is Isostearyl Neopentanoate safe during pregnancy?
Isostearyl Neopentanoate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Isostearyl Neopentanoate for?
Isostearyl Neopentanoate suits: normal, dry, combination, oily, sensitive.
What is Isostearyl Neopentanoate and what does it do in cosmetics?
An emollient ester.
Is Isostearyl Neopentanoate comedogenic?
On the Fulton scale 2/5 – low comedogenicity. For acne-prone skin, a rating of 3 or higher suggests choosing an alternative.
What's the INCI name for Isostearyl Neopentanoate?
The INCI name is Isostearyl Neopentanoate.
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