Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Toxicological Studies
1 study endpoint found for Magnesium Stearate. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.
| Endpoint | Value | Route | Species | Study Type | Source |
|---|---|---|---|---|---|
| NOAEL | 2500 mg/kg bw/day | oral | rat | Subchronic | COSMOS_DB |
GHS Hazard Classification
Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.
Expert Verdict
Magnesium salt of stearic acid functioning as a binder and lubricant in pressed eye shadow and eyeliner powder formulations. Standard component of pan-pressing systems with one of the longest-established safety records as a pharmaceutical tablet excipient. No significant ophthalmological concerns or regulatory restrictions for eye-area use.
Regulatory Flags
Frequently Asked Questions
Is Magnesium Stearate safe in cosmetics?
Magnesium salt of stearic acid functioning as a binder and lubricant in pressed eye shadow and eyeliner powder formulations. Standard component of pan-pressing systems with one of the longest-established safety records as a pharmaceutical tablet excipient. No significant ophthalmological concerns or regulatory restrictions for eye-area use. The EU classifies Magnesium Stearate as "permitted". Safety rating: EXCELLENT. 1 toxicological study endpoint(s) are available in our database.
Is Magnesium Stearate allowed in the EU?
Magnesium Stearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Magnesium Stearate do in cosmetics?
Magnesium Stearate functions as: Binder; lubricant; slip agent in pressed powder formulations. It is classified as a Emollient in our database. CAS number: 557-04-0.
What is the Margin of Safety for Magnesium Stearate?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
What is the NOAEL for Magnesium Stearate?
The NOAEL (No Observed Adverse Effect Level) for Magnesium Stearate is 2500 mg/kg bw/day based on a Subchronic study via oral route in rat. Source: COSMOS_DB.
Compliance Tools
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Related Ingredients
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