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Moumoujus

METHOXYMETHYLBUTANOL.

Valuable CAS 56539-66-3 / SOLVENT

Methoxymethylbutanol is a highly effective solvent critical for creating stable and uniform cosmetic formulations. It also contributes as a humectant, supporting skin hydration, and functions as a stabilizer to optimize product texture and spreadability.

Summary

Solvent Humectant Stabilizer

Science

Mechanism of Action

This ingredient primarily dissolves other components in cosmetic formulations, ensuring a homogeneous mixture and even distribution of active ingredients. Its humectant properties help attract and retain moisture in the skin, while its stabilizing action maintains product integrity, improves overall feel, and enhances ingredient solubility within emulsions.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

No data available suggests this ingredient is commonly 'dusted' or associated with significant consumer concern regarding concentration.

The Formula

Formulation

Solubility
Both
Optimal pH 2 – 13
0 7 14

Stability

Methoxymethylbutanol demonstrates excellent stability across a wide pH range, from strongly acidic (pH 2) to highly basic (pH 13). It is stable against auto-oxidation, which prevents the formation of allergenic byproducts, and exhibits low sensitivity to humidity, making it reliable in various environmental conditions. This stability also aids in preventing recrystallization of aroma chemicals and avoids cloudiness in fragranced products.

Conflicts

  • Oxidizing agents

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Generally regarded as safe for cosmetic use, Methoxymethylbutanol exhibits low toxicity and is readily biodegradable. Dermal irritation tests in rabbits showed slight irritation at 100% concentration (score of 0.6) but no irritation at a 50% concentration diluted with water (score of 0.0), suggesting minimal irritation at typical formulation levels. While potential side effects such as skin irritation or allergic reactions are uncommon, a patch test is recommended. Data regarding topical use during pregnancy and breastfeeding is currently insufficient, and professional healthcare consultation is advised for these populations.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Methoxymethylbutanol is a valuable formulation aid, excelling as a versatile solvent, humectant, and stabilizer with broad pH stability and a low risk profile for all skin types, contributing significantly to product efficacy and sensory appeal.

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