Hyaluronic Acid

Hyaluronic Acid molecular structure
molecular structure · PubChem
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Synthetic
Humectant
Hyaluronic Acid
Acid
Clean
OriginSynthesized from sodium acetate or glucose through bacterial fermentation using Streptococcus zooepidemicus. The fermented product is then purified and precipitated to isolate high-molecular-weight hyaluronic acid.
Restricted:EWG VERIFIED products cannot contain this ingredient without adequate substantiation.
CAS #
9004-61-9
Form
Liquid
State
Solid
Skin Types
●all-skin-types, gentle
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
Functions
Humectant In Cosmetic Products
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-assessed3 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
2 studies / 2 not irritating (CIR 450)
Not an Eye Irritant
1 study / 1 not irritating (CIR 450)
Mixed Sensitization Results
1 study / 1 mixed (CIR 450)
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR