What Is Ditridecyl Dimer Dilinoleate?
Ditridecyl Dimer Dilinoleate is an ester created by joining fatty acids from linoleic acid with tridecyl alcohol. The result is a silky liquid oil that spreads easily on skin and leaves behind a lightweight, cushioned feel. Its roots trace back to the 1980s when formulators began exploring plant derived oils that could mimic the softness of mineral oil without the greasy after-feel. By reacting naturally occurring linoleic acid with a branching process called dimerization then esterifying it with tridecyl alcohol, chemists produced a stable ingredient that resists oxidation, feels elegant and is biodegradable.
Manufacturing involves heating and pairing two linoleic acid molecules to form a dimer, then attaching two tridecyl alcohol chains. The finished material is purified, yielding a clear low-odor liquid that plays well with other cosmetic ingredients.
You will find Ditridecyl Dimer Dilinoleate in a variety of leave-on products. It is popular in facial and body moisturizers, anti-aging creams, hand lotions, sunscreens, makeup primers, foundations, lip balms and hair smoothing serums. Because it boosts slip and softness, it is also added to rinse-off masks and gentle cleansing balms.
Ditridecyl Dimer Dilinoleate’s Cosmetic Benefits/Uses
Ditridecyl Dimer Dilinoleate pulls double duty in formulas by caring for skin while improving product texture.
- Moisturising: Forms a light comforting layer that slows water loss so skin stays hydrated longer
- Skin Conditioning: Softens rough patches and helps restore a supple feel, making skin look healthier
- Emollient: Fills in tiny gaps between skin cells for an immediate smooth silky finish without heaviness
- Smoothing: Enhances glide and spreadability of creams and makeup, allowing products to apply evenly and leave a refined surface
Who Can Use Ditridecyl Dimer Dilinoleate
Thanks to its light non occlusive texture Ditridecyl Dimer Dilinoleate suits most skin types, including dry, normal and combination. Oily or acne prone users usually tolerate it as well because the ingredient absorbs quickly and does not leave a heavy residue, though those highly sensitive to any type of oil may prefer to monitor how their skin responds.
The ingredient is made from plant derived fatty acids and synthetic alcohol so it contains no animal by-products. This makes it appropriate for vegans and vegetarians looking to avoid animal sourced emollients.
No data suggest that topical use poses a specific risk for pregnant or breastfeeding women when used in standard cosmetic concentrations. Still this is not medical advice, and anyone who is expecting or nursing should review their routine with a doctor to be safe.
Ditridecyl Dimer Dilinoleate does not increase photosensitivity and can be worn during the day without boosting sun sensitivity. As with any emollient heavy ingredient it may slightly reduce the staying power of very matte makeup but otherwise has no notable application limits.
Potential Side Effects/Adverse Reactions
Reactions to Ditridecyl Dimer Dilinoleate vary from person to person. The points below outline potential effects that are possible yet uncommon when the ingredient is correctly formulated and used as intended.
- Mild transient redness or warmth in very sensitive skin
- Temporary clogged pores in individuals already prone to congestion
- Contact irritation if used alongside harsh actives on compromised skin
If any irritation or discomfort occurs discontinue use and seek advice from a healthcare professional if necessary.
Comedogenic Rating
Rating: 1 out of 5. Ditridecyl Dimer Dilinoleate is a large branched ester that sits mainly on the surface rather than seeping into pores which keeps its clogging potential low. It has a lighter feel and faster absorption than many plant oils that contain smaller fatty acids which is why formulators often choose it for products marketed as non greasy.
Most acne-prone users can use it without seeing new breakouts though extremely reactive or severely congested skin may still prefer to limit heavier emollients.
Its low oxidation rate means it is less likely to form pore-clogging by-products over time which further supports the low rating.
Summary
Ditridecyl Dimer Dilinoleate works as a moisturiser skin conditioner emollient and texture smoother by forming a breathable lipid layer that locks in water fills micro-gaps between skin cells and gives creams a velvety glide. Its branched structure keeps it light while the double linoleic backbone offers a soft cushiony finish.
While not yet a household name it is quietly popular among formulators who need a mineral-oil alternative that feels elegant in both skincare and makeup. You will see it more often in mid to high-end moisturisers primers and lip products where slip and a non greasy afterfeel matter.
Current safety data shows a very low risk of irritation or sensitisation when used in normal cosmetic amounts. As with any new ingredient it is wise to patch test a fresh product first to make sure your individual skin agrees.