Lapachol

INCI: LAPACHOL

CAS Number
84-79-7
Function
Antimicrobial, skin conditioning
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status prohibited
US Notes FDA rejected lapachol as an investigational new drug for cancer treatment due to anticoagulant toxicity; not specifically banned in cosmetics but carries significant safety burden

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Strong anti-vitamin K activity (anticoagulant), documented reproductive toxicity and teratogenicity in animal studies, potential phototoxicity; systemic absorption through skin is a concern. A naturally occurring 1,4-naphthoquinone isolated from Tabebuia (pau d'arco) bark; shows broad-spectrum antimicrobial and antiparasitic activity in research; its toxicity profile makes cosmetic use problematic

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Concern Level: High

Frequently Asked Questions

Is Lapachol safe in cosmetics?

Strong anti-vitamin K activity (anticoagulant), documented reproductive toxicity and teratogenicity in animal studies, potential phototoxicity; systemic absorption through skin is a concern. A naturally occurring 1,4-naphthoquinone isolated from Tabebuia (pau d'arco) bark; shows broad-spectrum antimicrobial and antiparasitic activity in research; its toxicity profile makes cosmetic use problematic The EU classifies Lapachol as "prohibited". Safety rating: MODERATE.

Is Lapachol allowed in the EU?

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

What does Lapachol do in cosmetics?

Lapachol functions as: Antimicrobial, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 84-79-7.

What is the Margin of Safety for Lapachol?

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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