murphyCalcium Stearate
AKA: 1592-23-0, Calcium octadecanoate, Octadecanoic acid, Calcium salt, Calcium distearate, Calstar, Flexichem, Aquacal, Flexichem CS, Stavinor 30
Synthetic
Emulsifier
Skin Conditioner
Synthetic
Clean
OriginDerived from stearic acid and calcium compounds, both obtained from animal fats or vegetable oils. Synthesized through the reaction of stearic acid with calcium hydroxide or calcium carbonate.
Calcium Stearate is a cosmetic ingredient used as anticaking, colorant, emulsion stabilising, viscosity controlling.
Solubility 0.004 G/100 CC H2O AT 15 °C; INSOL IN ALCOHOL & ETHER
Formula
C36H70CaO4
Mol. Weight
607.00
CAS #
1592-23-0
Form
Liquid
State
Pellets or Large Crystals, Liquid, Other Solid; Pellets or Large Crystals; Pellets or Large Crystals, Liquid; Dry Powder, Pellets or Large Crystals; Water or Solvent Wet Solid; Dry Powder; Liquid; Dry
Skin Types
●all-skin-types
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Prevents Clumping
Adds Color
Stabilizes Emulsion
Controls Viscosity
Keeps Formula Blended
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
—
Pregnancy
—
Concentration Guide
Leave-on0.000098–5%
Rinse-off0.00089–2.4%
0%50%100%
CIR reported use · 2016 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG