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Moumoujus

DIMETHYLOL ETHYLENE THIOUREA.

Avoid CAS 15534-95-9 / ANTIMICROBIAL, HAIR CONDITIONING

Dimethylol Ethylene Thiourea is an organic compound with proposed applications as an antimicrobial and hair conditioning agent in cosmetic formulations. Its structural relationship to known formaldehyde-releasing compounds and thiourea derivatives raises significant safety and compatibility concerns.

Summary

antimicrobial agents hair conditioning

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

A related compound, Ethylene Thiourea (ETU), demonstrates extreme hydrolytic stability over a pH range of 5-9 at 90 °C for up to three months. However, Dimethylol Ethylene Urea (DMEU), another structurally similar derivative, has been observed to induce yellowing in treated fabrics under acidic conditions combined with high heat.

Conflicts

  • alcohols
  • polyols
  • amides
  • imides

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

The safety profile of Dimethylol Ethylene Thiourea is highly concerning due to its structural kinship with known formaldehyde-releasing compounds and other thiourea derivatives, which possess documented safety issues. Specifically, Dimethylol Dihydroxyethylene Urea (DMDHEU) and Dimethylol Ethylene Urea (DMEU) are recognized allergens and mild irritants. Ethylene Thiourea (ETU), a structurally analogous compound, is considered carcinogenic, can cause developmental toxicity, and is linked to allergic skin reactions and contact dermatitis. Furthermore, the FDA has publicly indicated an intention to ban formaldehyde and formaldehyde-releasing agents in hair straightening products, highlighting regulatory aversion to this class of chemicals.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Given the significant structural similarities to known carcinogens, potent allergens, and formaldehyde-releasing compounds, alongside an 'not reviewed' CIR status, Dimethylol Ethylene Thiourea presents unacceptable risks for use in precision skincare formulations.

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