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Moumoujus

BUTYLETHANOLAMINE.

Avoid CAS 111-75-1 / BUFFERING

A secondary alkanolamine that functions primarily as an alkaline pH adjuster and buffering agent in cosmetic formulations. While utilized in some sunscreen products as a stabilizer for UV absorbers, this compound is banned in EU cosmetics due to its potential to form carcinogenic nitrosamines.

Summary

Buffering pH Adjuster UV Stabilizer

Science

Mechanism of Action

Acts as a strong alkaline buffering system to neutralize acidic components and maintain product pH stability. In UV formulations, prevents aggregation of organic micronized sunscreen particles through ionic stabilization.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Primarily an industrial chemical with limited cosmetic application and significant safety concerns

The Formula

Formulation

Solubility
Water
Optimal pH 8 – 12
0 7 14

Stability

Highly stable alkaline compound with 10% aqueous solution achieving pH 11.9, but reactive with oxidizing systems

Conflicts

  • Nitrosating agents
  • Sodium Nitrite
  • Bronopol
  • Strong oxidizing agents
  • Strong acids

Safety

Safety Profile

CIR Status
Not reviewed
Pregnancy
Caution
Sensitization risk High

Prohibited in EU cosmetics (Annex II, entry 411). Pure compound classified as corrosive with severe skin burn potential. High nitrosamine formation risk.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

An industrial chemical with significant safety concerns and regulatory restrictions that offers no proven skincare benefits.

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