Lead acetate vs Butylated Hydroxyanisole: which is worse?
Quick answer: Lead acetate carries the heavier risk profile. Lead acetate is banned in the EU and allowed in the US; Butylated Hydroxyanisole is — in the EU and — in the US.
| Property | Lead acetate | Butylated Hydroxyanisole |
|---|---|---|
| EU status | Banned | — |
| US status | Allowed | — |
| Risk level | high | — |
| Banned in | European Union | Japan (banned for foods containing fats and oils) |
| Restricted in | — | European Union (restricted; banned in baby food), United Kingdom |
| Category | heavy metal | additive |
| Where it hides | progressive hair dye, men's hair color | — |
What is Lead acetate?
Lead acetate is a lead compound used in progressive darkening hair dyes.
What is Butylated Hydroxyanisole?
Butylated hydroxyanisole (BHA) is a synthetic phenolic antioxidant preservative derived from petroleum (see also bha entry). It is a mixture of 2-BHA and 3-BHA isomers, used to prevent oxidative rancidity in fats, oils, and fat-containing foods. Chemical formula C11H16O2.
Documented risks
Lead acetate: Lead is a potent neurotoxin with no safe level. Banned in EU cosmetics; the US FDA revoked its authorization in 2018.
Butylated Hydroxyanisole: IARC classifies BHA as Group 2B (possible human carcinogen) based on forestomach tumor studies in rodents at high doses. The NTP lists it as 'reasonably anticipated to be a human carcinogen.' EFSA's 2012 review found endocrine-disrupting potential. Japan banned it for food use. The FDA permits it at 0.02% of fat content. Concerns about estrogen-receptor interaction have been documented in animal studies. Contact dermatitis from cosmetic use is reported.
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