The contamination problem in cosmetics
Unlike food and pharmaceuticals, cosmetics in the U.S. face minimal pre-market testing requirements. The FDA does not approve cosmetics before they reach store shelves. Independent lab analyses consistently find heavy metal contamination in lipstick, foundation, eyeshadow, and blush at levels that would trigger regulatory action in food products.
A 2023 analysis by UC Berkeley School of Public Health tested 231 commonly sold cosmetics and detected PFAS chemicals in 56% of foundations and eye products, and heavy metals in the majority of lip products tested.
What's being found — and why it matters
Lead is found naturally in mineral pigments (reds, oranges) used in lipsticks. The FDA allows up to 10 ppm in cosmetics but has no binding limit. The CDC maintains there is no safe level of lead exposure. Chronic low-level oral ingestion — which happens when lipstick is worn and eaten throughout the day — accumulates over time and is linked to neurological damage.
Cadmium is a known carcinogen found in yellow and orange pigments. It is toxic to the kidneys and linked to bone mineral loss.
Arsenic appears in some mineral-based "natural" products. Inorganic arsenic is a Group 1 carcinogen.
Chromium, often found in green and blue pigments, is a respiratory carcinogen in its hexavalent form.
The "natural" trap
Products marketed as "natural" or "mineral" are not necessarily safer. Minerals mined from the earth naturally contain trace heavy metals. The problem is that "natural" labeling in cosmetics carries no regulatory definition — products can make this claim regardless of their contamination levels.
What to look for
Certifications that carry actual weight: COSMOS Organic (EU standard), EWG Verified, and products screened by the Campaign for Safe Cosmetics. The Environmental Working Group's Skin Deep database provides contamination data for over 90,000 products.
Avoid products with the following in their ingredient lists, which are associated with contamination: CI 77491, 77492, 77499 (iron oxides that may contain lead), synthetic fragrances without disclosure, and products containing talc (often contaminated with asbestos).