murphyZinc Silicate
AKA: Silicic acid (H4SiO4), Zinc salt (1:2), Silicic acid dizinc, Silicon zinc oxide (SiZn2O4)
Synthetic
Not Clean
OriginZinc Silicate is synthesized from zinc oxide and silicon dioxide, both inorganic mineral compounds. The two materials are combined through high-temperature fusion or chemical reaction to form the zinc silicate compound.
The Expert Panel for Cosmetic Ingredient Safety concluded that the following 24 silicate ingredients are safe in cosmetics in the present practices of use and concentration described in this safety assessment when formulated to be non-irritating, with the exception that the available data are insufficient to make a determination of safety for the use of naturally-sourced (i.e., mined) silicate ingredients in products that may be incidentally inhaled: Zinc Silicate.
Formula
H4O4SiZn2
Mol. Weight
226.90
CAS #
13597-65-4
Form
Powder
State
Dry Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Deodorant
Controls Odor
Neutralizes odor
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 808)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 808)
Eye Irritant in Testing
1 study / 1 irritating (CIR 808)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2025
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR