murphyDiatomaceous Earth
AKA: Diatomite, Kieselguhr, Silicon dioxide, Fossilized diatoms
Synthetic
Clean
OriginDerived from fossilized remains of diatoms, a type of single-celled algae from ancient marine deposits. Mined from sedimentary rock layers, then processed through grinding and purification to create a fine powder.
Diatomaceous Earth is a mineral material consisting chiefly of the siliceous frustules and fragments of various species of diatoms
Formula
SiO2
Mol. Weight
60.09
CAS #
61790-53-2
Form
Powder
Skin Types
●all-skin-types
Best For
Oiliness
Pregnancy & Breastfeeding Safe
Yes
Functions
Abrasive
Anticaking
Bulking
Opacifying
Physical Exfoliant
Prevents Clumping
Adds Body & Volume
Adds Opacity
Antioxidant Protection
Anti-Aging Benefits
Reduces Inflammation
Gently polishes surface
Adds volume
Creates creamy opacity
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
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
Product formulation test found no phototoxicity in the CIR safety assessment (CIR 837)
Not a Skin Irritant
3 studies / 3 not irritating (CIR 837)
Not a Sensitizer
2 studies / 2 not sensitizing (CIR 837)
Mixed Eye Irritation Results
3 studies / 2 mixed / 1 not irritating / reactions moderate (CIR 837)
Concentration Guide
Leave-on0.0049–0.01%
Rinse-off0.001–2%
0%50%100%
CIR reported use · report published 2026
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR