Polysaccharides

Amorphophallus Konjac Root Extract

INCI: AMORPHOPHALLUS KONJAC ROOT EXTRACT
CAS 37220-17-0 EC 253-404-6
Amorphophallus Konjac Root Extract is the extract of the roots of Amorphophallus konjac, Araceae
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Amorphophallus Konjac Root Extract is the extract of the roots of Amorphophallus konjac, Araceae

Purpose

Function

Film-forming agent and humectant derived from the root of Amorphophallus konjac; creates a moisture-retaining film on skin and hair, supports skin barrier function, and provides soothing and anti-inflammatory benefits via konjac glucomannan (KGM)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
EXCELLENT
US
Permitted
Absorptionnegligible
Sensitizationlow
MoSadequate
ConcernLow
Flags
film-forminghumectantpolysaccharideplant-derivedhigh-molecular-weightmoisture-retentionanti-inflammatoryewg-score-1cir-assessed-safeeu-cosing-registeredgras-food-grade
Verdict

Safe, well-tolerated plant-derived polysaccharide with a strong hydrating and film-forming profile. EWG scores it 1 (lowest hazard). CIR assessed the broader polysaccharide gum class as safe as used in cosmetics with no specific restrictions placed on glucomannan in topical applications. EU CosIng registered with no Annex restrictions. Widely used in serums, masks, and moisturizers. Suitable for sensitive skin.

US Note

No FDA prohibition; konjac flour holds GRAS status for food (since 1957/1994); cosmetic use is unrestricted under current 21 CFR; not on any prohibited or restricted list

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
37220-17-0
EC Number
253-404-6
INCI
AMORPHOPHALLUS KONJAC ROOT EXTRACT
Category
Polysaccharides
Updated
Apr 2, 2026