Decyl Oleate
An emollient ester from oleic acid. It softens skin and gives a soft slip. 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
Decyl Oleate is an emollient ester of oleic acid and decyl alcohol. In cosmetics it softens skin, gives a silky, light slip and improves how creams and oils spread. It is common in emulsions, sunscreens and fluid makeup. This is a functional formula component with an emollient effect, not a corrective active. It brings a pleasant feel and helps the product spread well, but it does not treat wrinkles, spots or acne. Its role is sensory and textural. Applied topically it has no systemic relevance, so it can be used during pregnancy and breastfeeding. Tolerability is good, with low irritation and allergy potential. The point to watch is comedogenicity, which is medium-high (3 of 5). On oily or acne-prone skin it can contribute to clogged pores, especially at a high level, so in those cases it is worth watching how the skin responds.
Frequently asked questions
Is Decyl Oleate safe during pregnancy?
Decyl Oleate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Decyl Oleate for?
Decyl Oleate suits: normal, dry, combination, oily, sensitive.
What is Decyl Oleate and what does it do in cosmetics?
An emollient ester from oleic acid.
Is Decyl Oleate comedogenic?
On the Fulton scale 3/5 – moderate comedogenicity. For acne-prone skin, a rating of 3 or higher suggests choosing an alternative.
What's the INCI name for Decyl Oleate?
The INCI name is Decyl Oleate.
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Decylene Glycol, Dextran, Dicaprylyl Carbonate, Diethylhexyl Carbonate, Hydrogenated Farnesene, Mannose, Ricinus Communis Seed Oil, Arachis Hypogaea Oil
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