Ingredient review
Diisopropyl Sebacate
INCI: DIISOPROPYL SEBACATE
A lightweight, non-greasy emollient that softens skin and improves product feel, with a low risk of irritation or clogged pores.
In plain English
Diisopropyl sebacate is a synthetic oil-like ingredient made from sebacic acid (a natural fatty acid) and isopropyl alcohol. It spreads easily on the skin, absorbs quickly, and leaves a silky, non-sticky finish. Think of it as a lighter, less greasy alternative to heavier oils like coconut or mineral oil. It's often used to make creams and lotions feel smoother and more luxurious without weighing down the skin.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Easy yes for most routines
Diisopropyl Sebacate is generally a lower-concern ingredient when the full formula suits your skin.
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 Diisopropyl Sebacate.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
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
Diisopropyl sebacate is an ester—a compound formed from sebacic acid and isopropyl alcohol. It is a clear, colorless liquid that acts as an emollient and skin conditioning agent in cosmetics.
How it works
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft feel. It also helps other ingredients spread more evenly and reduces the greasy or sticky texture that some products can have.
Pros
Lightweight feel
Unlike heavier oils, diisopropyl sebacate absorbs quickly and leaves no greasy residue, making it ideal for daytime use or under makeup.
Low pore-clogging risk
It has a low comedogenic rating, so it's less likely to cause breakouts compared to many natural oils, even for acne-prone skin.
Cons and cautions
Synthetic origin
It is manufactured in a lab, which may be a downside for consumers seeking 100% natural or plant-based skincare products.
Limited long-term data
While generally considered safe, there are fewer long-term studies on this ingredient compared to more common emollients like glycerin or squalane.
Best for
- People with oily or combination skin who want moisture without heaviness
- Anyone who dislikes greasy or sticky skincare textures
Use caution if
- Those who strictly avoid synthetic ingredients in their routine
Usage tips
Safety summary
Diisopropyl sebacate is considered safe for cosmetic use with a low irritation and comedogenic risk. It is well-tolerated by most skin types, including sensitive and acne-prone skin.
Research notes
Available research focuses on its function as an emollient and skin conditioning agent. It is widely used in cosmetics and has been reviewed by safety panels with no major safety concerns identified.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics by the U.S. FDA and the European Commission. The Cosmetic Ingredient Review (CIR) panel has deemed it safe at typical usage levels.
- Common uses
- Moisturizers, Serums, Sunscreens, Makeup removers, Lip products
- Environmental note
- As a synthetic ester, its biodegradability is not as well-documented as some natural oils, but it is not known to be a significant environmental concern.
Good to know
- Diisopropyl sebacate is often used as a replacement for silicone oils in 'silicone-free' formulations.
- It is derived from sebacic acid, which is naturally found in castor oil, but the final ingredient is processed synthetically.
Common questions
What is Diisopropyl Sebacate in beauty products?
Diisopropyl sebacate is a synthetic oil-like ingredient made from sebacic acid (a natural fatty acid) and isopropyl alcohol. It spreads easily on the skin, absorbs quickly, and leaves a silky, non-sticky finish. Think of it as a lighter, less greasy alternative to heavier oils like coconut or mineral oil. It's often used to make creams and lotions feel smoother and more luxurious without weighing down the skin.
What does Diisopropyl Sebacate do in a beauty product?
It sits on the skin's surface, filling in tiny gaps between skin cells to create a smooth, soft feel. It also helps other ingredients spread more evenly and reduces the greasy or sticky texture that some products can have.
Is Diisopropyl Sebacate safe for most people?
Diisopropyl sebacate is considered safe for cosmetic use with a low irritation and comedogenic risk. It is well-tolerated by most skin types, including sensitive and acne-prone skin.
Who should be careful with Diisopropyl Sebacate?
Those who strictly avoid synthetic ingredients in their routine
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.