Beta Glucan
AKA: Beta-Glucan, (2S, 3R, 4S, 5S, 6R)-2-[(2R, 4R, 5R, 6S)-4, 5-dihydroxy-2-(hydroxymethyl)-6-[(2R, 5, 6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-6-(hydroxymethyl)oxane-3, 4, 5-triol, 6R)-2-((2R, 5-dihydroxy-2-(hydroxymethyl)-6-((2R, 6-trihydroxy-2-(hydroxymethyl)oxan-3-yl)oxyoxan-3-yl)oxy-6-(hydroxymethyl)oxane-3, GlyTouCan:G26190RC, Beta-D-Glucan
Synthetic
Humectant
Skin Conditioner
Synthetic
Not Clean
Beta-Glucan is a polysaccharide isolated from the cell walls of bacteria, plants, and fungi with immunostimulant and antineoplastic activities. In a solubilized form, beta-glucan binds to a lectin site within complement receptor 3 (CR3) on leukocytes, priming the receptor to trigger cytotoxic degranulation of leukocytes when leukocyte CR3 binds to complement 3 (iC3b)-coated tumors. Thus, the attachment of beta-glucan to CR3 of circulating leukocytes simulates leukocytes to kill iC3b-coated tumor cells in the same way as they kill iC3b-coated yeast. (NCI04)
Formula
C18H32O16
Mol. Weight
504.40
CAS #
26874-89-5
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.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Adds Body & Volume
Skin Conditioning Miscellaneous
Improves skin feel
Adds volume
Traditional Use
Unable to provide traditional use description; this does not appear to be a valid or recognizable cosmetic ingredient name.
EWG
5
CIR
Insufficient
Pregnancy
—
CIR Safety Findings
Not a Sensitizer
all-shades-safe
Concentration Guide
Industry max
Industry typically uses up to 0.1% in leave-on products (1 products reported). Source: CIR Safety Assessment (CIR Seq 611).
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
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.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR