Shellac

AKA: Lac Resin, Shellac Resin
Synthetic
Emollient
Occlusive
Skin Conditioner
Clean
Origin-Derived
Shellac. A resin secreted by Laccifer lacca, Coccidae
CAS #
9000-59-3
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Hair Fixing
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
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
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
3 studies / 3 not sensitizing (CIR 170)
Not Phototoxic
Product formulation test found no phototoxicity in the CIR safety assessment (CIR 170)
Mixed Eye Irritation Results
2 studies / 1 irritating / 1 mixed / reactions slight (CIR 170)
Mixed Skin Irritation Results
5 studies / 4 irritating / 1 not irritating / reactions slight (CIR 170)
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR
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