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

SD ALCOHOL 38-C.

Avoid / ASTRINGENT, SOLVENT, VISCOSITY CONTROLLING

SD ALCOHOL 38-C is a denatured ethanol variant, primarily functioning as a solvent and astringent in cosmetic formulations. While it offers quick-drying properties and a matte finish suitable for oily skin, its specific denaturants raise significant safety and compatibility concerns for precision skincare.

Summary

Solvent Astringent Viscosity Controlling Penetration Enhancer Antimicrobial

Science

Mechanism of Action

This ingredient acts as a highly effective solvent, dissolving other substances within cosmetic matrices. On the skin, it functions as an astringent, promoting temporary tightening and contraction. It also contributes to product texture by controlling viscosity and facilitates deeper penetration of other active ingredients. Its quick evaporation leaves a dry, matte skin finish, and as an ethanol derivative, it possesses inherent antimicrobial properties.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The primary ethanol component is generally stable. However, the specific denaturants, menthol and formaldehyde solution, may introduce unique stability considerations and potential incompatibilities within complex formulations.

Synergies

  • Enhances dermal penetration of other active ingredients.

Conflicts

  • Can lead to excessive skin dryness and disruption of the natural skin barrier function.
  • Frequent or high-concentration use may paradoxically stimulate increased oil production, potentially worsening oily skin conditions.
  • Increases the risk of irritation when combined with other potentially irritating ingredients such as fragrances, retinoids, or vitamin C.
  • Contraindicated for use on abraded or lacerated skin due to expected burning sensations and heightened systemic absorption.

Safety

Safety Profile

CIR Status
Insufficient data for this specific variant.
Sensitization risk High

SD ALCOHOL 38-C is denatured with menthol and formaldehyde solution. The CIR Expert Panel, while deeming other SD Alcohols safe with specific denaturants, did not explicitly include formaldehyde in its 'safe as used' list for denaturants. Formaldehyde is a known irritant and sensitizer, meaning the safety of this particular variant cannot be assumed from general SD Alcohol assessments. The FDA recognizes SD Alcohol's cosmetic use for preventing beverage diversion. Additionally, acetaldehyde, a potential trace component or metabolite of ethanol, is identified by the SCCS as an eye/respiratory tract irritant and a skin sensitizer.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Avoid

Due to the presence of formaldehyde as a denaturant, high potential for irritation, disruption of the skin barrier, and insufficient specific safety data, SD ALCOHOL 38-C is not recommended for use in precision skincare formulations.

Related

Similar Ingredients

Finding similar ingredients…