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DI-GLYCERYL STEARATE DIMER DILINOLEATE.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Di-Glyceryl Stearate Dimer Dilinoleate is an advanced skin-conditioning agent and emollient, engineered to enhance the skin's natural barrier. It actively prevents dehydration by replenishing the lipid content within the skin's upper layers, delivering a smooth, non-greasy finish.

Summary

Skin-conditioning agent Emollient Occlusive Emulsifier Texture stabilizer Ingredient binding agent

Science

Mechanism of Action

This ingredient operates by supplying exogenous lipids that meticulously fill gaps within the intercorneocyte clusters, thereby significantly enhancing skin hydration and fortifying the barrier. It establishes a protective, occlusive film on the skin's surface, effectively minimizing transepidermal water loss (TEWL) and shielding against environmental aggressors. Furthermore, it contributes to mitigating inflammation and refines skin texture, ensuring a non-tacky feel.

Research

Clinical Evidence

High confidence
Effective range 2–53%
Optimal

For general skincare, a concentration between 2% and 5% of related diesters has demonstrated effective skin conditioning with minimal irritation. Higher concentrations, up to 53%, have been safely utilized in specific applications like lipsticks.

Key findings

  1. 01 Cosmetic formulations containing related diesters at concentrations up to 27% did not induce skin irritation or sensitization.
  2. 02 A moisturizer formulation incorporating 5% Diisopropyl Dimer Dilinoleate was conclusively shown to be a non-dermal irritant.
  3. 03 Makeup formulations featuring 2% Diisopropyl Dimer Dilinoleate were assessed as non-acnegenic, non-comedogenic, and non-irritating.
  4. 04 A concealer with 10% Diisostearyl Dimer Dilinoleate registered a very low Primary Irritation Index (0.084/4), though mild stinging was reported in 2 out of 22 individuals with lactic acid sensitive skin.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This ingredient contributes to stabilizing product texture and enhancing ingredient binding. It functions as an emulsifier and forms an occlusive, oily film on the skin surface to significantly reduce transepidermal water loss.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
53%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has determined that the broader family of dialkyl dimer dilinoleates, including those chemically related to this ingredient, are safe for use in cosmetic products. The maximum use concentration for these related diesters is established at up to 53% in lipsticks. While a 2025 CIR review noted 'Insufficient Data' for some specific 'Dimer Dilinoleates,' the general class has a robust safety profile. Additionally, 'Diglycerides' are approved by the FDA for use as indirect food additives.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Di-Glyceryl Stearate Dimer Dilinoleate is a valuable emollient and skin-conditioning agent, significantly enhancing skin barrier function and hydration with a consistently low risk of irritation and comedogenicity.

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References

Sources