Glucomannan

Glucomannan 1
molecular structure · PubChem CID 24892726
AKA: GlyTouCan:G86956SE, G86956SE, Glucomannoglycan, 76081-94-2, (Glucomannan)n, (Glucomannan)n+1, CHEBI:17020, LUEWUZLMQUOBSB-FSKGGBMCSA-N
Synthetic
Skin Conditioner
Synthetic
Not Clean
OriginDerived from the konjac plant (Amorphophallus konjac), a tropical tuber native to Southeast Asia. Extracted through solvent precipitation of the polysaccharide from konjac flour, then chemically synthesized for cosmetic formulation.
Glucomannan is a heteroglycan consisting of beta-(14)-linked D-glucose (G) and D-mannose (M) in a proportion of 5:8. The basic polymeric repeating unit has the pattern: GGMMGMMMMMGGM, with branching through beta-(13)- and beta-(16)-glucosyl linkages. Acetate groups are present on C-6 every 9-19 units of the main chain. It has a role as a nutraceutical.
Formula
C24H42O21
Mol. Weight
666.60
CAS #
-
Skin Types
●all-skin-types
Best For
General
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Conditions Skin
Skin Protecting
Shields skin from damage
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Insufficient
Pregnancy
—
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 680)
Concentration Guide
Leave-onNot reported
Rinse-off0.3–17%
0%50%100%
CIR reported use · 2013 survey
Regulatory Status
USAunder review
CANADA✔ permitted
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR