Phytosphingosine

What Is Phytosphingosine?

Phytosphingosine is a long-chain sphingoid base that serves as the backbone for all ceramides in the skin. It is naturally present in the stratum corneum where it provides broad-spectrum antimicrobial activity (against bacteria, fungi, and viruses) while simultaneously supporting barrier repair. As a precursor to ceramide synthesis, it is one of the few ingredients that both treats acne (antimicrobial) and repairs barrier simultaneously — ideal for acne-prone skin with compromised barrier.

Key Skin Benefits

• + Broad-spectrum antimicrobial — bacteria, fungi, viruses
• + Ceramide precursor — supports natural barrier synthesis
• + Anti-inflammatory — reduces skin redness and irritation
• + Treats acne while repairing barrier (unique dual-action)
• + Naturally present in healthy skin — excellent tolerability

Pros

• + + Unique dual-action — antimicrobial + barrier repair
• + + Ceramide precursor — supports natural skin lipids
• + + Broad antimicrobial — P. acnes, S. aureus, fungi
• + + Naturally found in skin — biomimetic
• + + Ideal for acne-prone sensitive skin

Cons

• − − Can be irritating at very high concentrations
• − − Less effective as standalone acne treatment
• − − Expensive as purified ingredient
• − − Limited consumer awareness

Specifications

Safety Ratings

Regional Regulatory Limits

Typical Usage % by Product Type

References

1. Bibel DJ et al. — Antimicrobial activity of sphingosines. J Invest Dermatol (1992). PMID: 1732387
2. Pavicic T et al. — Phytosphingosine in skincare. J Drugs Dermatol (2007)
3. Fischer CL et al. — Sphingoid bases as antimicrobials. Future Microbiol (2012). PMID: 22763563