Phytosphingosine

Skin-Identical Lipid

Also known as: 4-Hydroxysphinganine

Description

Phytosphingosine is a sphingoid base naturally present in the stratum corneum, where it serves as a metabolic precursor to ceramides — the predominant lipid class in the epidermal barrier. Beyond its structural role, phytosphingosine possesses intrinsic antimicrobial activity against Propionibacterium acnes, Staphylococcus aureus, and Malassezia species, as well as anti-inflammatory properties mediated through inhibition of pro-inflammatory cytokine release. It is used in skincare formulations to strengthen the barrier, reduce inflammation, and control microbial colonization. [Pavicic 2007]

Mechanism of Action

Phytosphingosine is enzymatically acylated by ceramide synthases in the epidermis to generate ceramides, particularly ceramide NP and ceramide AP, which are critical for lamellar body formation and barrier integrity. Its antimicrobial activity involves disruption of bacterial and fungal cell membranes through interaction with membrane lipids. Anti-inflammatory effects are mediated by suppression of NF-κB signaling, reducing production of TNF-α, IL-1β, and IL-8 in keratinocytes. It also promotes keratinocyte differentiation, supporting normal epidermal homeostasis. [Farwick 2007]

Indications

  • Acne vulgaris [Pavicic]
  • Atopic dermatitis [Farwick]
  • Seborrheic dermatitis [Pavicic]
  • Impaired skin barrier
  • Dry skin / xerosis
  • Anti-microbial skin care
  • Sensitive skin support

Available Concentrations

0.1%0.2%0.5%1%

Side Effects

  • Generally well tolerated [Pavicic]
  • Rare mild irritation at high concentrations

Contraindications

  • Known hypersensitivity to phytosphingosine (extremely rare)

Pregnancy Category

Not classified (generally considered safe; naturally occurring skin lipid)

Found In

Cosmetics containing Phytosphingosine

CeraVe Foaming Facial CleanserCeraVe (L'Oréal)CeraVe Moisturising CreamCeraVe (L'Oréal)Earth Rhythm Phyto Ceramide Deep Moisture CreamEarth RhythmFoxtale Hydrating Daily Moisturiser with Ceramides & Hyaluronic AcidFoxtaleRe'equil Ceramide & Hyaluronic Acid MoisturiserRe'equil

Related Conditions

Acne Vulgaris Antimicrobial and anti-inflammatory — inhibits P. acnes growth and reduces inflammatory cytokine production Atopic Dermatitis Barrier repair — serves as ceramide precursor and controls S. aureus colonization Xerosis Lipid precursor — supports ceramide synthesis and strengthens intercellular lipid barrier Seborrheic Dermatitis Antifungal — disrupts Malassezia cell membranes and reduces associated inflammation

References

  1. Farwick M, Lersch P, Strutz G. "Low-molecular-weight sphingolipids: ceramides and glycosylceramides as moisturizers and skin-barrier repair agents." Cosmetics & Toiletries, 2007.
  2. Pavicic T, Wollenweber U, Farwick M, et al. "Anti-microbial and -inflammatory activity and efficacy of phytosphingosine: an in vitro and in vivo study addressing acne vulgaris." Int J Cosmet Sci, 2007. doi:10.1111/j.1467-2494.2007.00378.x

Limitations

This page provides a general overview of Phytosphingosine in dermatology. It does not cover every possible use, formulation, or interaction. Individual responses to compounds vary — what works for one person may not work for another. Always consult a qualified dermatologist before starting or changing any treatment.