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Moumoujus

CERAMIDE EOS.

Essential CAS - / HAIR CONDITIONING, SKIN CONDITIONING

Ceramide EOS is a critical lipid component of the skin's natural barrier, forming an organized lamellar structure with cholesterol and fatty acids. It plays a fundamental role in maintaining barrier integrity, preventing moisture loss, and shielding the skin from environmental stressors. This ceramide is vital for skin resilience, smoothness, and overall health.

Summary

Hair conditioning Skin conditioning Skin barrier repair Hydration Anti-aging

Science

Mechanism of Action

As a major structural component of the stratum corneum lipid matrix, Ceramide EOS precisely aligns with cholesterol and fatty acids to establish highly organized lamellar layers. It acts as an 'intercellular cement,' binding corneocytes together to form a robust, protective barrier. This specific ceramide is crucial for maintaining the characteristic long-short-long periodicity of a healthy skin barrier, effectively reducing transepidermal water loss (TEWL) and enhancing skin hydration. By creating a formidable protective layer on the skin's surface, Ceramide EOS actively defends against environmental aggressors, pollutants, and allergens, contributing to improved skin elasticity and a smoother, more resilient complexion.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–1%
Optimal

0.1%

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.01%
Red flag below
0.01%

While Ceramide EOS is not typically 'dusted' in the conventional sense, a notable discrepancy exists between its common use concentrations for optimal efficacy (0.1-1%) and the maximum concentration (0.01%) specifically reviewed by the Cosmetic Ingredient Review (CIR) Expert Panel as 'safe as used.' Formulations claiming full CIR safety at concentrations exceeding 0.01% for this specific ceramide may warrant closer scrutiny, as these higher levels were not explicitly covered in the documented CIR assessment.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 7
0 7 14

Stability

Ceramide EOS maintains stability under standard cosmetic processing and formulation conditions. It exhibits general stability within a pH range of 4 to 7. Exposure to strong alkaline conditions should be avoided, as this can induce mild alkaline hydrolysis of its ester linkages.

Synergies

  • Other ceramides
  • Cholesterol
  • Fatty acids (for optimal lamellar reconstruction)

Conflicts

  • Strong alkaline conditions (may cause mild alkaline hydrolysis)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
0.01%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel's 2020 assessment concluded that ceramide ingredients, including Ceramide EOS, are safe for use in cosmetics under current practices. Their safety review specifically considered personal care products containing up to 0.01% of Ceramide EOS. No specific SCCS (Scientific Committee on Consumer Safety) opinion for Ceramide EOS has been identified. Ceramide EOS is reported in cosmetic products listed with the FDA's Voluntary Cosmetic Registration Program (VCRP).

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Essential

Ceramide EOS is an essential ingredient for comprehensive skin barrier repair and hydration, providing foundational support for skin health and resilience across all skin types.

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References

Sources