Cydonia Oblonga Leaf Extract
INCI: CYDONIA OBLONGA LEAF EXTRACT
Reviewed by Kate · Last updated 14 Aug 2026
A plant extract with conditioning properties, traditionally valued in skincare formulations
Best For Skin Types
All, Dry, Sensitive
Addresses
Usage Frequency
Daily
What Is Cydonia Oblonga Leaf Extract?
Cydonia Oblonga Leaf Extract is derived from the leaves of the quince plant (Cydonia oblonga), a fruit-bearing tree native to Western Asia. The extract is obtained through processing quince leaves to isolate their active constituents, which are then incorporated into skincare formulations.
In cosmetic products, this ingredient functions primarily as a skin conditioning agent. Quince leaves contain polyphenols and other plant compounds that may help support skin's natural barrier function and overall skin health when applied topically.
How It Works
Cydonia Oblonga Leaf Extract works through its polyphenolic and tannin content. These plant compounds are thought to interact with skin surface proteins and lipids, helping to condition the skin and support its natural moisture-retention capacity.
The extract may also have mild astringent properties, which could help maintain skin tone and texture, though more research is needed to establish the extent of these effects in topical formulations.
Clinical Evidence & References
Clinical evidence specifically focused on Cydonia Oblonga Leaf Extract in skincare is limited. Most data derives from the traditional use of quince in folk medicine and preliminary laboratory studies on quince leaf phytochemistry.
The ingredient is generally recognised as safe in cosmetic use, and its polyphenol content suggests potential antioxidant activity. However, robust human studies examining efficacy in skincare formulations are sparse, so claims should be viewed cautiously.
How to Use
This ingredient is typically found in concentrations well below 1% in finished products. Use as directed by the formulation—usually as part of a daily skincare routine. It pairs well with other conditioning and barrier-support ingredients. No specific preparation is necessary; simply apply as part of your regular regimen.
Safety & Precautions
Frequently Asked Questions
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