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Moumoujus

STARCH LAURATE.

Insufficient Data / ABRASIVE

Starch laurate is a chemically modified starch, derived through the esterification of starch with lauric acid. This process enhances its hydrophobic character, enabling it to potentially form protective films on the skin, aid in moisture retention, and impart a smooth feel. It may also function as a texture enhancer and absorb excess sebum.

Summary

Film-forming Moisture retention Texture enhancer Sebum absorption Emulsion stabilizer Abrasive

Science

Mechanism of Action

By esterifying starch with lauric acid, hydrophilic hydroxyl groups are replaced by more hydrophobic laurate ester groups, increasing the molecule's overall hydrophobic nature. When applied to skin, this modification facilitates the potential formation of a protective film, thereby contributing to enhanced moisture retention and a smoother tactile experience. Furthermore, similar to native starch, it is theorized to improve product texture and absorb surplus sebum.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Incorporating starch laurate (at 5-15% wt with a degree of substitution of 0.3) into mango kernel starch films increased film elongation from 30% to 80% and enhanced opacity, while reducing tensile strength and elastic modulus, suggesting significant film modification potential.
  2. 02 Rice starch laurate at concentrations of 20-30 wt% effectively produced the most stable canola oil-in-water emulsions, indicating strong emulsion stabilizing capabilities.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

No specific optimal pH range for stability was found. Lauric acid, a constituent of starch laurate, exhibits varying dissociation levels across pH, remaining undissociated below pH 4 and fully ionized above pH 9. The thermal decomposition of starch laurate occurs between 216–220 °C, indicating lower thermal stability compared to native cassava starch.

Conflicts

  • Poor compatibility with highly hydrophobic polymers can pose challenges, particularly in film production.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

Starch laurate has not undergone specific review by the Cosmetic Ingredient Review (CIR) Expert Panel or the Scientific Committee on Consumer Safety (SCCS), thus comprehensive safety assessments from these bodies are not available.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Insufficient Data

While exhibiting promising film-forming and emulsion-stabilizing properties in material science and food applications, starch laurate lacks direct clinical data on human skin efficacy and comprehensive safety assessments, necessitating further investigation for skincare use.

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