Microcrystalline Wax
AKA: Petrolatum wax, Paraffin wax, Microcrystalline paraffin
Plant-Derived
Emulsifier
Wax
Clean
Cera Microcristallina (EU),Hydrocarbon Waxes, Microcryst,Petroleum Wax, Microcrystalline
CAS #
63231-60-7
Form
Wax
Functions
Binding
Bulking
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Moisturizing
Improves Elasticity
Holds ingredients together
Adds volume
Keeps product blended
Controls product thickness
Traditional Use
A refined petroleum byproduct developed in the early 20th century. Used in cosmetics as a thickener and emollient, replacing or supplementing natural waxes like beeswax.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
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Verified Jun 2026
Data: CosIng · EWG · CIR