Ingredient review
Di-C20-40 Alkyl Dimer Dilinoleate
INCI: DI-C20-40 ALKYL DIMER DILINOLEATE
A gentle, non-greasy emollient that helps soften skin and improve product texture without clogging pores.
In plain English
This is a synthetic oil-like ingredient that spreads easily on skin, making it feel smooth and soft without being sticky or heavy. It's often used in moisturizers and lip products to give a silky feel and help other ingredients glide on better.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
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
Useful, but context matters
Di-C20-40 Alkyl Dimer Dilinoleate 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 Di-C20-40 Alkyl Dimer Dilinoleate.
- 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
A synthetic ester derived from dilinoleic acid and long-chain alcohols (C20-40). It is a high-molecular-weight emollient designed to provide a non-greasy, velvety feel on skin.
How it works
It forms a thin, breathable film on the skin's surface that reduces water loss and improves skin softness. Its large molecular structure means it stays on the surface rather than penetrating deeply, making it a gentle surface conditioner.
Pros
Lightweight feel
Unlike heavy oils, this ingredient spreads easily and leaves a silky, non-sticky finish, making it ideal for daytime moisturizers and makeup.
Low pore-clogging risk
With a low comedogenic rating, it's less likely to cause breakouts, so it's suitable for acne-prone skin types seeking hydration.
Cons and cautions
Synthetic origin
It is lab-made, which may be a turn-off for those seeking exclusively natural or plant-derived ingredients in their skincare.
Limited skin benefit data
While it feels nice on skin, there is less published research on its long-term benefits compared to more studied emollients like squalane or shea butter.
Best for
- People with normal to dry skin looking for lightweight moisture
- Those who prefer non-comedogenic emollients in their routine
Use caution if
- Individuals strictly avoiding synthetic ingredients
Usage tips
Safety summary
Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic potential. No major safety concerns reported in regulatory reviews.
Research notes
Primarily supported by industry data and safety assessments from cosmetic ingredient review panels. Limited independent clinical studies, but its chemical profile suggests low risk.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No known restrictions at typical concentrations.
- Common uses
- Moisturizers, Lip products, Makeup, Sunscreens, Anti-aging creams
- Environmental note
- As a synthetic compound, its biodegradability and environmental impact are less studied than natural oils. It is not derived from endangered plant species.
Good to know
- This ingredient is often used in high-end cosmetics for its luxurious feel.
- It is stable and resistant to oxidation, helping extend product shelf life.
Common questions
What is Di-C20-40 Alkyl Dimer Dilinoleate in beauty products?
This is a synthetic oil-like ingredient that spreads easily on skin, making it feel smooth and soft without being sticky or heavy. It's often used in moisturizers and lip products to give a silky feel and help other ingredients glide on better.
What does Di-C20-40 Alkyl Dimer Dilinoleate do in a beauty product?
It forms a thin, breathable film on the skin's surface that reduces water loss and improves skin softness. Its large molecular structure means it stays on the surface rather than penetrating deeply, making it a gentle surface conditioner.
Is Di-C20-40 Alkyl Dimer Dilinoleate safe for most people?
Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic potential. No major safety concerns reported in regulatory reviews.
Who should be careful with Di-C20-40 Alkyl Dimer Dilinoleate?
Individuals strictly avoiding synthetic ingredients
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.