Science
Mechanism of Action
Xylitol acts as a humectant by forming hydrogen bonds with water, increasing stratum corneum hydration and improving skin biomechanics. It enhances filaggrin and ceramide production, strengthens the skin barrier, and offers prebiotic as well as mild anti-inflammatory benefits.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 5% xylitol with 5% glycerol increased skin hydration, filaggrin, and improved biomechanical properties over 14 days in dry skin.
- 02 5% xylitol combined with 0.2% farnesol decreased Staphylococcus aureus and improved hydration in atopic dermatitis.
- 03 8.26% or 16.52% xylitol prevented acute dermal irritation and reduced inflammatory markers in a mouse study.
Transparency
Dusting Analysis
Not typically associated with dusting in cosmetic formulations due to its excellent water solubility and common inclusion as a humectant.
The Formula
Formulation
Stability
Compatible across pH 4-8.
Synergies
- Glycerol
- Farnesol
Safety
Safety Profile
The CIR Expert Panel found xylitol safe as used in cosmetics, citing no evidence of systemic toxicity, sensitization, or irritation. It is also FDA approved as a direct food additive.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Xylitol is a valuable multi-functional ingredient, offering significant hydration, barrier support, and microbiome balancing properties suitable for all skin types, with a strong safety record.
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