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Moumoujus

ISOSTEAROYL PHYTOSPHINGOSINE.

Insufficient Data / SKIN CONDITIONING, SKIN PROTECTING

Isostearoyl Phytosphingosine is a lipid derivative structurally related to naturally occurring phytosphingosine in the skin. It is designed to bolster the skin's essential lipid barrier, enhancing moisture retention and fortifying defenses against environmental stressors.

Summary

Skin Barrier Reinforcement Moisture Retention Antimicrobial Anti-inflammatory Sebum Balancing Pore Clogging Prevention Reduces Transepidermal Water Loss (TEWL) Ceramide Precursor

Science

Mechanism of Action

This ingredient functions as a crucial precursor to ceramides, which are integral components of the skin's protective lipid barrier. By facilitating ceramide synthesis, it reinforces barrier integrity, thereby mitigating transepidermal water loss (TEWL) and promoting optimal hydration. Additionally, it exhibits demonstrated anti-inflammatory and antimicrobial properties, contributing to the soothing of irritated skin and inhibiting the proliferation of acne-causing bacteria like Propionibacterium acnes. This multi-faceted action supports balanced sebum production and helps prevent pore congestion.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

No specific information regarding dusting analysis or common underdosing was found for Isostearoyl Phytosphingosine in the provided research data.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Isostearoyl Phytosphingosine is not soluble in water and exhibits low solubility (approximately 1 wt%) in certain cosmetic solvents, which may limit its application in transparent liquid formulations at higher concentrations. It integrates effectively with ceramides, peptides, and mild acids. Formulation with strong actives, such as high-strength retinoids or AHAs, should be approached with caution.

Synergies

  • Ceramides
  • Peptides
  • Mild acids

Conflicts

  • High-strength retinoids
  • Strong AHAs

Safety

Safety Profile

CIR Status
Safe as used
Max tested
0.2%
Sensitization risk Low

While Isostearoyl Phytosphingosine specifically was not exhaustively detailed, the CIR Expert Panel evaluated the safety of phytosphingosine-based ceramides, including Ceramide 3 (N-Stearoyl-Phytosphingosine), affirming their safety in cosmetics at current concentrations and practices of use. The maximum reported concentration for Ceramide 3, which serves as a benchmark for this related compound, was 0.2% in both lipstick and face/neck skincare preparations. No distinct SCCS opinion or FDA status was identified for Isostearoyl Phytosphingosine.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Insufficient Data

Isostearoyl Phytosphingosine exhibits a plausible mechanism of action as a ceramide precursor, drawing strong parallels to the established benefits of phytosphingosine; however, direct, ingredient-specific clinical evidence is currently limited, indicating a need for further dedicated studies to precisely quantify its efficacy.

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