Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

BUTYLENE GLYCOL STEARATE.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A multifunctional ester that delivers triple benefits as an emollient, emulsifier, and surfactant in skincare formulations. This versatile ingredient smooths skin texture while helping to bind moisture and facilitate the blending of oil and water phases in cosmetic products.

Summary

emollient emulsifying surfactant

Science

Mechanism of Action

Functions by filling intercellular spaces between corneocytes to create a smoother skin surface while simultaneously reducing trans-epidermal water loss. Its ester structure enables dual functionality as a non-ionic emulsifier that reduces surface tension between oil and water phases.

Research

Clinical Evidence

High confidence
Effective range 0.08–5%
Optimal

2.5%

Key findings

  1. 01 2003 CIR cosmetic use survey demonstrated non-irritating and non-sensitizing properties at 0.08% maximum concentration in leave-on products
  2. 02 Patent research shows 1.0-5.0% range effectively improves skin smoothness and reduces cutaneous fatigue in anti-aging formulations

Transparency

Dusting Analysis

Not commonly dusted

Not typically used for marketing claims but rather as a functional formulation component

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 8.5
0 7 14

Stability

Maintains stability under standard cosmetic storage conditions but may undergo hydrolysis at extreme pH levels, breaking down into butylene glycol and stearic acid components

Synergies

  • other emollients in barrier repair formulations

Conflicts

  • Strong oxidizing agents
  • Strong acids
  • Strong bases

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

Evaluated as part of the CIR Alkyl Esters group assessment, with panel concluding safety in current usage practices when formulated to avoid irritation

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Moderate

Our Assessment

Verdict

Valuable

A reliable multifunctional ingredient that effectively combines emollient and emulsifying properties with excellent safety profile for most skin types.

Related

Similar Ingredients

Finding similar ingredients…