Diethylhexyl Sebacate

Benefits
Softening

What is Diethylhexyl Sebacate?

Diethylhexyl sebacate is a synthetic diester produced from sebacic acid—a dicarboxylic acid obtained by cleaving castor oil—and 2-ethylhexanol, a branched-chain alcohol derived from petrochemical sources. This clear, oily liquid serves primarily in anhydrous formulations such as lip products, sunscreens, nail coatings, and hair styling aids. It functions by dissolving lipophilic ingredients to aid formulation stability, reducing viscosity for smoother application, and providing emolliency through its ability to lubricate skin surfaces. As a plasticizer, it imparts flexibility to polymeric films, preventing cracking in coatings. Its low volatility and dry-touch profile make it ideal for improving product wear and sensory feel without greasiness, while also contributing to masking off-notes in scented formulas.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Fragrance ingredient
Contributes scent character and/or masks base odors, shaping the overall sensory experience of the formula (subject to allergen and IFRA considerations).
Plasticizer
Improves flexibility and reduces brittleness of films (e.g., nail coatings, hair sprays), helping prevent cracking and enhancing smooth application.
Solvent
Dissolves and carries other ingredients, helping control viscosity, evaporation rate, and delivery of actives in both water- and oil-based systems.
Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Masking
Reduces perception of unpleasant odors or tastes by neutralizing them or covering them with more acceptable sensory notes.

Benefits

Softens and smooths skin by filling surface irregularities for a supple feel.

Improves product texture and spreadability as a solvent and emollient.

Enhances film flexibility and durability in makeup and sunscreens.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals seeking lightweight hydration in oil-free formulas.
Those with rare allergies to sebacic acid derivatives.
Users of long-wear makeup or sunscreens for better application.
Individuals sensitive to synthetic esters in high concentrations.
People preferring non-greasy emollients in daily skincare.
People avoiding petrochemical-derived ingredients on principle.

Safety Notes

  • Deemed safe for cosmetic use by expert reviews on sebacate esters.
  • Low potential for irritation or comedogenicity in formulations.

Frequently Asked Questions about Diethylhexyl Sebacate

What is diethylhexyl sebacate used for?

It acts as an emollient, solvent, plasticizer, and film former in lip products, sunscreens, and nail coatings to improve texture and wear.

Is it safe for sensitive skin?

It shows low irritation potential and is considered safe in cosmetic concentrations by regulatory reviews.

Does it cause acne?

No, it has a comedogenic rating of 0, making it suitable for acne-prone skin.