Science
Mechanism of Action
Lactitol operates as a humectant by attracting and retaining water molecules, thereby optimizing the skin's moisture levels. Concurrently, it serves as a prebiotic, selectively nurturing beneficial microorganisms within the skin's microflora, which helps to rebalance the cutaneous ecosystem and can alleviate associated dryness and itching.
Research
Clinical Evidence
Medium confidence3%
Key findings
- 01 MySkinRecipes review on humectant and prebiotic function
Transparency
Dusting Analysis
No data suggests Lactitol is commonly used below effective concentrations or that it has a low efficacy threshold for noticeable effects.
The Formula
Formulation
Stability
Lactitol maintains stability within a pH range of 3.5 to 5.5. For optimal integration, it should be dissolved in the water phase at room temperature or up to 40°C, as temperatures exceeding 40°C are advised against. This ingredient is notably hygroscopic.
Synergies
- Enhanced prebiotic and humectant benefits when combined with xylitol in complex formulations to further support the skin microbiome.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated disaccharide sugar alcohols, including Lactitol, confirming their safety for cosmetic use under current practices and concentrations, consistent with broader safety assessments for related sugar alcohols.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Lactitol is a valuable ingredient for its dual capacity to deliver optimal skin hydration and support a healthy skin microbiome, rendering it suitable for a broad spectrum of skin types and concerns.
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Similar Ingredients
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References
Sources