LEAD ACETATE
Commonly Found In
Overview
Lead acetate is a water-soluble lead salt historically used in progressive hair-darkening products at concentrations around 0.6%. It darkens gray hair by reacting with sulfur in hair keratin to form insoluble lead sulfide. The EU banned it (Annex II/289) and the FDA prohibited it in cosmetics effective October 2018 due to lead's status as a reproductive/developmental toxicant with no safe exposure threshold. Its historical use in products such as Grecian Formula illustrates the era before heavy-metal restrictions in personal care.
Also known as: Lead Acetate, Lead(II) Acetate, Sugar of Lead, Plumbous Acetate, Lead Diacetate
Key Benefits
No skin benefits. Lead acetate was used solely for gradual hair darkening via keratin-sulfur chemistry. Lead provides no therapeutic or cosmetic benefit to skin.
Skin Compatibility Ratings
Comedogenic Rating
Non-comedogenic; banned from cosmetics due to lead toxicity, not pore-clogging effects.
Source: EU Cosmetics Regulation Annex II; FDA ban
Irritancy Rating
Significant systemic toxicity via dermal absorption; lead accumulates in bone and soft tissue; reproductive and developmental toxicant with no safe threshold
Source: Published toxicological reviews; FDA prohibition rationale
Typical Use Concentration
Range
0.6% (historical hair dye use)
Optimal
Not applicable β ingredient is banned/prohibited in most jurisdictions
Historical progressive hair-darkening products used approximately 0.6% lead acetate. No current permitted cosmetic concentration.
Works Well With / Avoid
Avoid Combining
Banned in EU/UK cosmetics. FDA prohibited in US cosmetics effective 2018. Not for use in any personal care formulation.
Commonly Found In
Global Regulation Summary
Overview of current status across major international markets.
Detailed Regional Status
| Region | Status | Max Conc. | Conditions | Source |
|---|---|---|---|---|
| πͺπΊ EU | Banned | - | - | Official β |
| πΊπΈ USA | Allowed | - | - | Official β |
| π―π΅ Japan | Allowed | - | - | Official β |
| π°π· Korea | Unknown | - | - | Official β |
| π¬π§ UK | Banned | - | Follows EU regulations (II/289) | Official β |
π Why Regulations Differ
Lead acetate was banned in EU cosmetics (Annex II/289) based on lead's classification as a reproductive/developmental toxicant (CMR category 1A/1B). The FDA issued a final rule prohibiting it in US cosmetics in 2018 after decades of permitting its use in hair dye at 0.6%. Japan has not issued a specific ban but restricts heavy metals generally.
Recent Regulatory Changes
- β’ FDA Final Rule (Federal Register 2018) β prohibited lead acetate in cosmetics effective October 2018
Regulation Analysis
Regional Agreement
Banned in EU, UK but allowed in USA, Japan.
Category Comparison
There are 311 ingredients in the HAIR DYEING category. 100% are banned in at least one major market.
Strictness Ranking
πΏ Natural Sources
Synthetic compound. Lead occurs naturally as a heavy metal, but lead acetate (Pb(C2H3O2)2) is chemically synthesized.
π How It's Made
Synthesized by dissolving lead oxide or lead carbonate in acetic acid, yielding lead(II) acetate trihydrate crystals.
π Uses in Cosmetics
Historically used in hair dye products at low concentrations for gradual darkening. Now banned or restricted in most countries due to lead being a toxic heavy metal that can accumulate in the body. The FDA banned it in US cosmetics in 2022.
π¬ Other Applications
Historical uses: sweetener ('sugar of lead' in ancient Rome - highly toxic), paint pigment (lead white), astringent. Modern uses: chemical reagent, gold cyanidation process. Most uses discontinued due to lead toxicity.
π‘ Fun Facts
- β’ Known as 'sugar of lead' in ancient Rome for its sweet taste - chronic lead poisoning from this may have contributed to the fall of Rome
- β’ Still sold in some US drugstores as 'Grecian Formula' hair darkener despite FDA warnings about lead exposure and neurotoxicity
- β’ Works by reacting with sulfur in hair keratin to form black lead sulfide, gradually darkening hair with each application
Data Sources
- β’ EU CosIng database (Annex II/289)
- β’ FDA Final Rule β Prohibition of Lead Acetate in Cosmetics (2018)
- β’ IARC/NTP reproductive toxicant classification for lead compounds
- β’ FDA Voluntary Cosmetic Registration data
Last data verification: 2026-04-16
Learn More
Frequently Asked Questions
Why is LEAD ACETATE banned in the EU but allowed in the US?
The EU follows a precautionary principle, banning LEAD ACETATE under II/289 due to potential safety concerns. The US FDA has not found sufficient evidence to prohibit its use, allowing it under different safety assessment standards. This reflects differing regulatory philosophies between the two regions.
Why is LEAD ACETATE banned in the EU but allowed in Japan?
The EU prohibits LEAD ACETATE (II/289) based on their strict safety criteria. Japan's Ministry of Health, Labour and Welfare (MHLW) has evaluated the ingredient and permits its use, potentially with different safety data or usage conditions.
What is LEAD ACETATE used for in cosmetics?
LEAD ACETATE is primarily used for hair dyeing in cosmetic products. The ingredient is commonly found in hair color products and dyes.
Which countries regulate LEAD ACETATE?
LEAD ACETATE is banned in EU, UK. The ingredient is freely allowed in JP, US.
Are there alternatives to LEAD ACETATE?
Due to regulatory restrictions on LEAD ACETATE, cosmetic manufacturers often use alternative ingredients with similar functions. For hair dyeing, alternatives may include other approved ingredients in the same category. Consult product labels for specific formulations, and look for products compliant with your region's regulations.
Disclaimer
The information on this website is for educational and informational purposes only and is not intended as medical advice. While we strive for accuracy based on official government databases, cosmetic regulations change frequently. Always consult with a qualified professional or refer to the latest official regulatory documents for compliance. We are not responsible for any actions taken based on the information provided here.