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C23-43 ACID PENTAERYTHRITOL TETRAESTER.

Valuable CAS 95465-86-4 / BINDING, FILM FORMING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

A high-performance, high-molecular-weight synthetic ester engineered for superior moisture retention and barrier reinforcement. It functions as a sophisticated emollient that provides a protective, breathable film on the skin's surface without a greasy residue.

Occlusive emollient Film-former Viscosity-controlling agent Skin conditioning agent Binding agent

Science

This tetraester operates as a macro-molecular occlusive agent that strategically fills the interstitial voids between corneocytes in the stratum corneum. By establishing a hydrophobic, semi-permeable barrier, it significantly reduces transepidermal water loss (TEWL) and shields the skin from environmental irritants while simultaneously modulating the viscosity and spreadability of the formulation.


Research

High confidence
Effective range 0.1–20%
Optimal

1.7%

Key findings

  1. 01 Safety evaluations including repeated insult patch testing confirmed no significant ocular irritation or dermal sensitization in cosmetic applications.
  2. 02 Demonstrated efficacy as a binding and film-forming agent, successfully enhancing moisture retention and texture stability in complex cosmetic matrices.

Transparency

Not commonly dusted
Min. effective
0.1%
Red flag below
0.05%

This ingredient is generally utilized for its structural and film-forming properties; however, at levels below 0.1%, its occlusive benefits for moisture retention are negligible.


The Formula

Solubility
Oil
Optimal pH 4 – 8
0 7 14

Stability

Highly stable under standard storage conditions; however, it remains vulnerable to hydrolysis in extreme environments where the pH drops below 3.0 or exceeds 10.0.

Synergies

  • Glycerin
  • Hyaluronic Acid
  • Ceramides

Conflicts

  • Strong oxidizers
  • Strong acids
  • Strongly alkaline environments

Safety

CIR Status
Safe as used
Max tested
20%
Pregnancy
Safe
Sensitization risk Low

The CIR Expert Panel considers this ingredient non-sensitizing in finished products. While the raw material in pure solid form may be a mild respiratory or ocular irritant, it poses no risk in stabilized cosmetic emulsions.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An excellent, non-irritating occlusive agent that provides essential barrier protection and texture refinement for dry and sensitive skin types.


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