murphyTalc
molecular structure · PubChem
AKA: STERITALC, Huashifen, Pulvis talci, Talc powder, INS NO.553(III), INS-553(III), E-553(III), Potstone, Sterile Talc
Synthetic
Barrier Support
Not Clean
OriginMined from magnesium silicate mineral deposits found in metamorphic rock formations worldwide. Extracted through mining, then mechanically ground and processed into fine powder form.
Talc (Mg3H2(SiO3)4) (CI 77718)
Solubility less than 1 mg/mL at 70 °F (NTP, 1992)
Formula
H2Mg3O12Si4
Mol. Weight
379.27
CAS #
14807-96-6
Form
Powder
State
Talc is an odorless white to grayish-white very fine crystalline powder (unctuous). Readily adheres to the skin. Nonflammable, noncombustible, and nontoxic.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Functions
Abrasive
Absorbent
Anticaking
Bulking
Opacifying
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
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
8
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 467)
Mixed Eye Irritation Results
1 study / 1 mixed / reactions slight (CIR 467)
Concentration Guide
Leave-on0.002–100%
Rinse-off0.0005–70%
0%50%100%
CIR reported use · 2009 survey
Regulatory Agencies
🧂Conflict of interest.
Verified Jun 2026 · 🧪 = conflict
Data: PubChem · CosIng · EWG · CIR