Dilauryl Ether: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Dilauryl Ether?

Dilauryl Ether, also known by its chemical name 1,1′-oxybisdodecane, is a synthetic ingredient made by linking two lauryl (12-carbon) chains through an oxygen atom. Each lauryl chain is originally derived from fatty alcohols that come from natural sources like coconut or palm oil. Chemists developed Dilauryl Ether in the mid-20th century when the beauty industry was searching for lightweight emollients that felt less greasy than mineral oil yet provided a soft, silky finish. Manufacturing involves first extracting lauryl alcohol from plant oils, then running it through a controlled reaction that bonds two of these alcohol molecules via an ether linkage, followed by purification to remove residues and create a clear, odorless liquid.

Thanks to its smooth texture and stability, Dilauryl Ether appears in a variety of leave-on products. You will most often see it in moisturizers, night creams, anti-aging serums, makeup primers, hair conditioning masks and high-end sunscreens where it helps improve spreadability and leaves skin or hair feeling velvety without heaviness.

Dilauryl Ether’s Cosmetic Benefits/Uses

Dilauryl Ether serves one main purpose in personal care formulas: skin conditioning. It forms a light, breathable layer on the surface that smooths rough spots, softens skin and enhances the overall sensory feel of a product. By filling tiny gaps on the skin’s surface it can make the complexion look more refined while helping other active ingredients glide on evenly. Formulators value it because it boosts creaminess without clogging pores or leaving a waxy residue.

Who Can Use Dilauryl Ether

Dilauryl Ether suits most skin types including normal, combination, oily and mildly sensitive skin because it is lightweight, non-greasy and unlikely to clog pores. Those with very dry or compromised skin may want to pair it with a richer occlusive since Dilauryl Ether alone does not lock in large amounts of moisture. The ingredient is synthetically produced from plant-derived fatty alcohols so it is generally acceptable for both vegans and vegetarians. Current safety assessments show no known reproductive or developmental concerns, meaning products containing Dilauryl Ether are considered compatible with use during pregnancy and breastfeeding; however this is not medical advice and anyone who is pregnant or nursing should run any skincare product past a qualified health professional to be on the safe side. Dilauryl Ether does not cause photosensitivity, so it will not make skin more prone to sunburn. It is also odorless and colorless which helps reduce the chance of fragrance-related irritation in formulas where it appears.

Potential Side Effects/Adverse Reactions

Reactions to the topical use of Dilauryl Ether vary from person to person. The points below outline potential side effects that could occur even though most users will never experience them when the ingredient is included at proper cosmetic levels.

  • Mild skin irritation – temporary redness or stinging on very reactive skin
  • Contact dermatitis – rare allergic response leading to itching and small bumps
  • Acne flare-ups – unlikely but possible in individuals extremely prone to breakouts
  • Eye irritation – watering or burning if the product accidentally gets into the eyes

If any of these effects occur stop using the product and consult a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 1 out of 5. Dilauryl Ether has a large, branched structure that sits lightly on the surface and is easily spread, so it is far less likely to block pores than heavier oils or butters. Its quick-absorbing nature and low film-forming capacity keep it on the safer side for congestion. Because of this low score, Dilauryl Ether is generally suitable for acne-prone or breakout-prone skin. People with extremely reactive, oily skin might still prefer to monitor how their skin responds, but most will not notice an increase in blemishes.

Summary

Dilauryl Ether is a lightweight skin-conditioning agent that smooths texture, improves spreadability and lends a soft, velvety finish without heaviness. It performs these functions by forming a thin, breathable layer that fills in tiny surface gaps and reduces drag when you apply a product.

The ingredient is something of an insider favorite rather than a mainstream star; you will find it more often in well-formulated moisturizers, primers and sunscreens that focus on a luxurious skin feel.

Current safety data show it to be low risk with minimal irritation potential, making it safe for everyday cosmetic use. As with any new skincare ingredient it is smart to perform a quick patch test when trying a product that contains Dilauryl Ether, just to be extra cautious.

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