Science
Mechanism of Action
Glycosyl Trehalose operates as a potent humectant, drawing and binding moisture within skin cells to form a 'water reservoir.' This action prevents cellular dehydration, maintaining elasticity and promoting a youthful appearance. It actively reinforces the skin's natural barrier, mitigating transepidermal water loss and bolstering defenses against irritants. Furthermore, it exhibits antioxidant properties by neutralizing free radicals, thereby protecting against oxidative stress, a primary contributor to skin aging. The ingredient also stimulates cell regeneration and renewal, contributing to smoother texture and a more uniform tone, while enhancing the skin's resilience to daily stresses. Beyond hydration and protection, Glycosyl Trehalose influences fibroblast function and modulates pro-inflammatory cytokines, critical actions for preserving collagen and extracellular matrix integrity. It also acts as a film-forming and emulsion-stabilizing agent within formulations.
Research
Clinical Evidence
Medium confidence2%
Key findings
- 01 A clinical study demonstrated that a 2% trehalose-containing cream, when combined with ceramides, led to a significant 69.5% increase in skin hydration and a 26.5% improvement in transepidermal water loss over 4 weeks of treatment.
- 02 High concentrations of trehalose, approximately 10% (100 mg/ml), have been shown to induce a beneficial senescence-like state in fibroblasts, which in turn accelerates keratinocyte proliferation, promotes angiogenesis, and supports optimal wound repair in murine models. These effects involve the activation of ERK1/2 and AKT pathways in human fibroblasts.
- 03 Topical application of formulations containing sodium trehalose sulfate over 4 weeks effectively reduced transepidermal water loss and enhanced stratum corneum water content in individuals with low stratum corneum water content, indicating its potential for ameliorating dry skin.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Glycosyl Trehalose exhibits high stability, particularly in acidic environments, with over 99% integrity maintained at pH 3.5 for one hour. This ingredient also contributes to enhancing emulsion stability and is generally compatible with a wide range of other cosmetic components, facilitating robust product formulations.
Synergies
- Ceramides (for enhanced hydration and barrier support)
Safety
Safety Profile
Glycosyl Trehalose is recognized by regulatory bodies, including the European Union, as safe for cosmetic applications. The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of trehalose and related disaccharides as used in cosmetics. It possesses a robust safety profile, with studies indicating a rare incidence of allergic reactions or skin irritation. The EWG Skin Deep database assigns it a low hazard rating across categories including cancer, allergies & immunotoxicity, and developmental & reproductive toxicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Glycosyl Trehalose is a valuable multifunctional ingredient, offering significant hydration, robust barrier support, and antioxidant protection with a low risk of irritation and broad skin compatibility.
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