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Polygonum aviculare (Knotgrass) extract
AKA “knotgrass extract”
Extract
Ingredient Facts
Polygonum aviculare (Knotgrass) extract
AKA: Knotgrass extract
Extract · Emollient · EWG: 4
Plant-Derived
Emollient
Extract
Not Clean
Polygonum aviculare (knotgrass) extract is a cosmetic ingredient used as emollient.
Family
Polygonaceae (Buckwheat family)
Plant Part
Herb
Lifeform
Annual or perennial
Climate
Temperate
CAS #
84604-04-6
Form
Liquid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Used in traditional European and Asian herbal medicine for wound healing and skin astringency; historically applied to support skin firmness and clarity.
Skin Types
●all-skin-types
Best For
Redness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Regulatory Status
USAunder review
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR