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C4-5 ISOALKYL COCOATE.

Valuable CAS - / SKIN CONDITIONING - EMOLLIENT

A lightweight, coconut-derived ester designed to refine skin texture and bolster the moisture barrier. It serves as a high-performance emollient that provides a smooth application without the heavy residue associated with traditional oils.

Emollient Skin-conditioning agent Barrier repair

Science

This ingredient integrates seamlessly into the stratum corneum, where it reorganizes lipid phase behavior to strengthen the skin's water-permeability barrier. By optimizing this lipid matrix, it effectively reduces transepidermal water loss (TEWL) and maintains cutaneous hydration.


Research

High confidence
Effective range 1.5–78%
Optimal

20%

Key findings

  1. 01 Human patch testing at 20% concentration confirmed excellent skin compatibility and zero irritation.
  2. 02 Maximization testing at 1.5% established the ingredient as non-sensitizing and a non-allergen.
  3. 03 Application at 100% (neat) demonstrated significant improvements in lipid barrier function and permeability.

Transparency

Not commonly dusted
Min. effective
1.5%
Red flag below
0.5%

As a functional emollient, this ingredient is typically used at significant levels to achieve desired texture; inclusion below 1.5% may indicate it is being used for marketing rather than barrier-supportive efficacy.


The Formula

Solubility
Oil
Optimal pH 4 – 7
0 7 14

Stability

Highly stable under standard cosmetic manufacturing protocols. However, extreme pH environments should be avoided to prevent ester hydrolysis.

Synergies

  • Ceramides
  • Squalane
  • Fatty Acids

Conflicts

  • Strong oxidizing agents
  • Highly acidic environments
  • Strongly alkaline environments

Safety

CIR Status
Safe as used
Max tested
78%
Pregnancy
Safe
Sensitization risk Low

Safety is well-established for leave-on products, provided the final formulation is tested for non-irritancy.


Your Skin

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

Our Assessment

Valuable

A highly compatible and safe emollient that provides sophisticated barrier support across all skin types.


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