Betula Platyphylla Japonica Leaf Extract
INCI: BETULA PLATYPHYLLA JAPONICA LEAF EXTRACT
Reviewed by Kate · Last updated 14 Aug 2026
A plant extract that conditions and supports skin's natural moisture balance
Best For Skin Types
All, Dry, Sensitive
Addresses
Usage Frequency
Daily
What Is Betula Platyphylla Japonica Leaf Extract?
Betula platyphylla japonica leaf extract is derived from the leaves of the Japanese white birch tree. It is a botanical ingredient that functions primarily as a skin conditioner, working to improve the texture and hydration status of the skin.
The extract contains naturally occurring compounds including polyphenols and other phytochemicals. These are typical of birch species and are believed to contribute to the ingredient's conditioning properties, though research specific to this extract remains limited.
How It Works
As a conditioning agent, this extract is thought to work by forming a protective film on the skin surface or by penetrating the outer layers to improve water retention. The polyphenols present may also offer antioxidant properties, though the extent and relevance of this effect in topical formulations requires further investigation.
The ingredient is typically used at low concentrations in formulations, where its conditioning effect is achieved through the cumulative activity of its constituent compounds rather than a single active mechanism.
Clinical Evidence & References
Published research specifically examining Betula platyphylla japonica leaf extract in skincare applications is limited. Most evidence for birch-derived ingredients comes from broader studies on plant polyphenols and their conditioning properties in cosmetic formulations.
The ingredient appears in skincare products marketed for hydration and barrier support, but clinical data demonstrating efficacy in human subjects is sparse. Formulators select this ingredient based on its traditional use and theoretical benefits, though robust clinical validation would strengthen confidence in its performance claims.
How to Use
This ingredient is typically included in hydrating serums, moisturisers and barrier repair products. It works well alongside other conditioning agents and humectants. As with most botanical extracts, it is generally compatible with a broad range of formulations, though products should be tested for stability, particularly if combined with actives such as vitamin C or retinoids.
Safety & Precautions
Frequently Asked Questions
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Betula Platyphylla Japonica Leaf Extract is a variant of Betula Platyphylla Japonica Bark Extract, the form you will most often see on an ingredients list.
Extract from Asian White Birch bark with traditional use for inflammatory skin conditions
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