Topiramate

INCI: TOPIRAMATE

CAS Number
97240-79-4
Function
Skin conditioning (CosIng listing), though primarily known as an anticonvulsant/pharmaceutical active
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes FDA-approved drug (Topamaxยฎ); cosmetic use would be extremely problematic โ€” any therapeutic claim triggers drug classification

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

๐Ÿšจ CRITICAL: Known teratogen; causes birth defects (cleft lip/palate); CNS depressant; metabolic acidosis risk; California Prop 65 warning; pharmaceutical-grade ingredient with no legitimate cosmetic application; do NOT formulate with this ingredient

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Concern Level: High

Regulatory Flags

prop65

Frequently Asked Questions

Is Topiramate safe in cosmetics?

๐Ÿšจ CRITICAL: Known teratogen; causes birth defects (cleft lip/palate); CNS depressant; metabolic acidosis risk; California Prop 65 warning; pharmaceutical-grade ingredient with no legitimate cosmetic application; do NOT formulate with this ingredient The EU classifies Topiramate as "permitted". Safety rating: POOR.

Is Topiramate allowed in the EU?

Topiramate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Topiramate do in cosmetics?

Topiramate functions as: Skin conditioning (CosIng listing), though primarily known as an anticonvulsant/pharmaceutical active. It is classified as a cosmetic ingredient in our database. CAS number: 97240-79-4.

What is the Margin of Safety for Topiramate?

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.

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