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Moumoujus

HEMA TRIMELLITATE ANHYDRIDE.

Avoid CAS 70293-55-9 / NAIL CONDITIONING

HEMA Trimellitate Anhydride is a chemical entity primarily found in nail product formulations, particularly in artificial nail systems. Comprising elements related to both Trimellitic Anhydride (TMA) and 2-hydroxyethyl methacrylate (HEMA), this compound is structurally associated with known sensitizers in dermatological contexts.

Summary

Nail Conditioning

Science

Mechanism of Action

While direct mechanisms of HEMA Trimellitate Anhydride on skin are not detailed, its constituent moieties offer mechanistic insights. Trimellitic Anhydride (TMA) is recognized as a hapten, capable of binding covalently to endogenous proteins within the skin to form neo-antigens. This process can trigger an immune response, leading to immunological sensitization. Concurrently, 2-hydroxyethyl methacrylate (HEMA) is independently identified as a sensitizer, with documented potential for skin absorption and elicitation of allergic reactions. The combined nature of these components implies a heightened potential for immunogenic activity.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

No information regarding dusting properties or associated risks of HEMA Trimellitate Anhydride is provided in the research data.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

The compound exhibits significant instability in aqueous environments. Related Trimellitic Anhydride undergoes rapid hydrolysis, converting to trimellitic acid within approximately 10 minutes upon contact with water, rendering solutions in water or alcohol unstable.

Conflicts

  • acids
  • strong oxidizing agents
  • alcohols
  • amines
  • bases
  • water (due to rapid hydrolysis)

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk High

The CIR Expert Panel found 'insufficient data' for Trimellitic Anhydride Copolymers in general cosmetic use, citing concerns about molecular weight, residual monomers, dermal absorption, and sensitization. While some related compounds were deemed safe for restricted use on the nail plate, data for other cosmetic applications remained inadequate. Trimellitic Anhydride (TMA) is classified by NIOSH as an extremely toxic agent with potential to cause immunological sensitization and irritation. HEMA, a component of this name, is a known sensitizer, particularly in nail products, causing allergic reactions upon skin contact.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Due to its significant potential for immunological sensitization, high irritancy profile, and a lack of comprehensive safety data for direct cosmetic skin applications, HEMA Trimellitate Anhydride should be avoided in precision skincare formulations.

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