Castanea Sativa (Chestnut) Leaf Extract



Castanea Sativa (Chestnut) Leaf Extract at a glance

  • Antioxidant-rich extract notable for its soothing properties
  • Helps support skin’s barrier and microbiome
  • Reduces skin discomfort
  • Enhances skin’s surface defenses against external irritants

Castanea Sativa (Chestnut) Leaf Extract description

Castanea sativa (chestnut) leaf extract comes from a tree native to countries throughout the northern hemisphere. The leaves contain antioxidant compounds astragalin and miquelianin, both having documented soothing abilities which help support a healthy skin barrier and calm signs and sensations of sensitivity. Other noted antioxidant compounds contributing to this plant’s benefits are ellagic acid, rutin, and isoquercetin.This plant extract can also help support a healthy microbiome and enhance skin’s surface defenses against environmental irritants that would otherwise trigger discomfort and redness. It is considered non-irritating and suitable for sensitive skin.The recommended usage level of chestnut leaf extract is 2%, of which 0.01–0.03% is the plant extract itself, the remainder being water and glycerin. That should give you an idea of the potency of this soothing plant!

Castanea Sativa (Chestnut) Leaf Extract references

  • Antioxidants, February 2021, pages 1–23
  • Metabolites, October 2020, pages 1–14
  • PLoS One, August 2015, pages 1–32
  • Basic & Clinical Pharmacology & Toxicology, November 2008, pages 461–467
  • Journal of Photochemistry and Photobiology, May 2008, pages 87–95

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not rated