Isomalt

AKA: C-isomaltidex, INS NO.953, E-953, BAY I 3930, BAY-I-3930, ISOMALT (II)
Synthetic
Humectant
Clean
OriginDerived from sucrose (table sugar) through hydrogenation and rearrangement of glucose and fructose molecules. Produced by catalytic hydrogenation of isomaltulose, creating a disaccharide polyol with reduced caloric content.
A complex mixture of polysaccharides obtained by enzyme treatment of sucrose. It consists mainly of 6-0-.alpha.-D-glucopyranosyl-D-glucitol and 1-0-.alpha.-D-glucopyranosyl-D-mannitol
Solubility Soluble in water, very slightly soluble in ethanol.
Formula
C12H24O11
Mol. Weight
344.31
CAS #
64519-82-0
Form
Liquid
State
Odourless, white, slightly hygroscopic, crystalline mass.
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Locks In Moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 657)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 657)
Mixed Eye Irritation Results
2 studies / 1 mixed / 1 not irritating / reactions slight (CIR 657)
Concentration Guide
Leave-on0.19%
Rinse-off7.77%
0%50%100%
CIR reported use · report published 2019
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR