Diisopropyl Adipate

Benefits
ProtectionSoftening

What is Diisopropyl Adipate?

Diisopropyl adipate is a synthetic ester formed from adipic acid, a dicarboxylic acid, and isopropanol, resulting in a low-viscosity, colorless liquid. In cosmetics, it functions across multiple categories like skincare, hair care, and color cosmetics as an emollient, solvent, and plasticizer. As an emollient, it lubricates the skin surface to enhance smoothness and reduce friction during application. Its solvent role dissolves lipophilic actives and adjusts formula consistency for even distribution. In film-forming products such as sunscreens or hair styling aids, it plasticizes coatings to boost flexibility and prevent cracking. The ingredient evaporates quickly, delivering a matte, dry-touch finish that minimizes greasiness, making it suitable for lightweight textures in lotions, sprays, and fragrance blends where it also aids scent diffusion and odor neutralization.

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.
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.
Solvent
Dissolves and carries other ingredients, helping control viscosity, evaporation rate, and delivery of actives in both water- and oil-based systems.
Masking
Reduces perception of unpleasant odors or tastes by neutralizing them or covering them with more acceptable sensory notes.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Delivers softening effects by smoothing skin texture and filling surface imperfections.

Offers protection through improved barrier function and reduced moisture evaporation when combined with other agents.

Enhances formula performance as a solvent and plasticizer for better application and flexibility.

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 with oily or acne-prone skin seeking non-comedogenic, lightweight hydration.
Those with known sensitivity to adipate esters, though rare.
Users of hair styling or nail products needing flexible, crack-resistant films.
Individuals experiencing irritation from similar synthetic solvents.
People preferring matte-finish formulas in sunscreens or daily moisturizers.
Anyone preferring fully natural or botanical-only ingredients.

Safety Notes

  • Considered low hazard with minimal risk of irritation or sensitization in typical use.
  • Non-comedogenic profile supports use across skin types without pore-clogging concerns.

Frequently Asked Questions about Diisopropyl Adipate

Is diisopropyl adipate comedogenic?

It has a comedogenic rating of 0, making it unlikely to clog pores.

What skin types suit diisopropyl adipate best?

Best for oily, combination, or those wanting matte, non-greasy textures.

Can it cause irritation?

Typically low irritation potential based on safety assessments.