Best For Skin Types
All, Dry, Sensitive
Addresses
Usage Frequency
Daily
What Is Ulmus Davidiana Bark Extract?
Ulmus davidiana bark extract is derived from the bark of the Ulmus davidiana tree, native to East Asia where it has been used in traditional medicine for centuries. The extract is rich in polysaccharides—complex carbohydrate molecules composed primarily of rhamnose, galactose, and glucose—which are known to interact with skin in beneficial ways.
In skincare formulations, this ingredient functions as a humectant and skin conditioner, meaning it helps attract moisture to the skin and supports the skin's natural protective barrier. It is typically incorporated into serums, moisturisers, and treatment products at relatively modest concentrations.
How It Works
Polysaccharides are hygroscopic, meaning they have an affinity for water molecules. When applied to skin, they bind water and help hold it within the stratum corneum (the outermost layer), thereby improving skin hydration and reducing moisture loss. This mechanism is similar to how other humectant ingredients function in skincare.
The extract also appears to have mild anti-inflammatory properties, which may help reduce redness and support skin comfort. Early research suggests it may modulate certain inflammatory markers in skin cells, though more extensive clinical evidence would help clarify the strength and consistency of this effect.
Clinical Evidence & References
Laboratory studies indicate that polysaccharide extracts from Ulmus davidiana show promise for moisturising efficacy and anti-inflammatory activity. Research measuring water loss and skin hydration levels has demonstrated measurable improvements in moisture retention, supporting its use as a humectant ingredient.
Evidence for anti-inflammatory effects exists but remains limited to in vitro and small-scale studies. The ingredient's traditional use in East Asian medicine for skin inflammation is noteworthy, though traditional use alone does not constitute definitive modern clinical proof. Further human studies would strengthen confidence in its efficacy for specific skin concerns.
How to Use
This ingredient is well-suited to layering in a hydration-focused routine. Apply it to damp skin (after cleansing or toning) to maximise its humectant effect, then follow with an occlusive moisturiser or facial oil to seal in hydration. It can be used daily as part of your morning and evening skincare routine, and it works well alongside other hydrating and barrier-supporting ingredients.
Safety & Precautions
Frequently Asked Questions
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