The EWG (Environmental Working Group) analysed 14,841 personal care products and compared ingredients found in these products against chemicals listed in 37 toxicity and regulatory databases. From this study the EWG has developed a list of top ingredients which are known and probable carcinogens; known and probable reproductive and developmental toxins; and ingredients that are illegal for use in cosmetics in the U.S. or E.U., or that have been found unsafe for use in cosmetics by authoritive bodies.
1. MERCURY
Unsafe for use in cosmetics according to FDA; Possible human reproductive or developmental toxin; Possible human carcinogen
2. THIMEROSAL
Unsafe for use in cosmetics according to FDA; Possible human reproductive or developmental toxin; Possible human carcinogen
3. LEAD ACETATE
Known human reproductive or developmental toxin; Prohibited for use in cosmetics in the European Union; Color not approved for use around eyes, in eye products
4. FORMALDEHYDE
Known human carcinogen; Not safe for use if aerosolized, in aerosolized product; Skin sensitizer
5. NICKEL
Known human carcinogen; Prohibited for use in cosmetics in the European Union; Skin sensitizer
6. TOLUENE
Unsafe according to International Fragrance Association; Possible human reproductive or developmental toxin; May contain harmful impurities or form toxic breakdown products
7. PETROLEUM DISTILLATES
Prohibited for use in cosmetics in the European Union; Possible human carcinogen; May contain harmful impurities or form toxic breakdown products
8. ACRYLONITRILE
Prohibited for use in cosmetics in the European Union; Possible human carcinogen; Skin sensitizer
9. ETHYLACRYLATE
Unsafe according to International Fragrance Association; Possible human carcinogen; Skin sensitizer
10. COAL TAR
Known human carcinogen; Prohibited for use in cosmetics in the European Union; May contain harmful impurities or form toxic breakdown products
11. DIBUTYL PHTHALATE
Prohibited for use in cosmetics in the European Union; Possible human reproductive or developmental toxin; Endocrine disruptor
12. POTASSIUM DICHROMATE
Possible human carcinogen; Possible human reproductive or developmental toxin; Skin sensitizer
13. METHYL CELLOSOLVE
Unsafe according to International Fragrance Association; Possible human reproductive or developmental toxin; Endocrine disruptor
14. FERROUS SULFATE
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Reproductive or developmental harm – limited evidence
15. SELENIUM SULFIDE
Possible human carcinogen; Restricted in EU cosmetics (manufacturing/structural limits); Reproductive or developmental harm – limited evidence
16. DIMETHYLAMINE
Prohibited for use in cosmetics in the European Union; Respiratory toxicity hazards; Skin or sense organ toxicity hazards
17. CHROMIUM
Known human carcinogen; Reproductive or developmental harm – limited evidence; Gastrointestinal or liver toxicity hazards
18. ZIRCONIUM SILICATE
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Restricted in EU cosmetics (manufacturing/structural limits)
19. ACRYLAMIDE
Possible human carcinogen; May contain harmful impurities or form toxic breakdown products; Restricted in EU cosmetics (impurity limit)
20. PHENYLPHENOL
Possible human carcinogen; Endocrine disruptor; Reproductive or developmental harm – limited evidence
21. D&C BLUE 6
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Color additive – banned or not approved for use in food
22. EXT D&C GREEN 1
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Color additive – banned or not approved for use in food
23. EXT D&C RED 1
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Color additive – banned or not approved for use in food
24. EXT D&C RED 3
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Color additive – banned or not approved for use in food
25. ACID VIOLET 43
Color additive – banned or not approved for use in cosmetics; May contain harmful impurities or form toxic breakdown products; Skin sensitizer
26. HEXACHLOROPHENE
Unsafe for use in cosmetics according to FDA; Lung sensitizer used in products that may be inhaled; Cancer – limited evidence of carcinogenicity
27. FD&C RED 3
Color additive – banned or not approved for use in cosmetics; Color not approved for use around eyes, in eye products; Not assessed for safety in cosmetics by industry panel
28. LIDOCAINE
Prohibited for use in cosmetics in the European Union; Neurotoxicity hazards; Respiratory toxicity hazards
29. HYDROXYANISOLE
Unsafe for use in cosmetics according to industry panel; Skin sensitizer; Neurotoxicity hazards
30. BHA
Possible human carcinogen; Endocrine disruptor; Skin sensitizer
31. LITHIUM CARBONATE
Possible human reproductive or developmental toxin; Endocrine disruptor; Gastrointestinal or liver toxicity hazards
32. DIMETHYL SULFOXIDE
Prohibited for use in cosmetics in the European Union; Reproductive or developmental harm – limited evidence; Cardiovascular or blood toxicity hazards
33. IODINE
Prohibited for use in cosmetics in the European Union; Endocrine disruptor; Gastrointestinal or liver toxicity hazards
34. PHENACETIN
Possible human carcinogen; Kidney toxicity hazards; Neurotoxicity hazards
35. PHENOLPHTHALEIN
Possible human carcinogen; Reproductive or developmental harm – limited evidence; Gastrointestinal or liver toxicity hazards
36. PROGESTERONE
Possible human carcinogen; Possible human reproductive or developmental toxin; Endocrine disruptor
37. ALUMINUM ZIRCONIUM TETRACHLOROHYDREX GLYCINE COMPLEX, ANHYDROUS
Unsafe for use in cosmetics according to FDA; Restricted in EU cosmetics (manufacturing/structural limits); Not assessed for safety in cosmetics by industry panel
38. DISPERSE BLUE 1
Possible human carcinogen; Kidney toxicity hazards; Industry-recommended limits on concentration/use
39. FERRIC AMMONIUM CITRATE
Color additive – banned or not approved for use in cosmetics; Persistent and bioaculative; Not assessed for safety in cosmetics by industry panel
40. BASIC VIOLET 14
Color additive – banned or not approved for use in cosmetics; Coal tar dye – cancer studies unavailable; Not assessed for safety in cosmetics by industry panel
41. ACID ORANGE 24
Color additive – banned or not approved for use in cosmetics; Coal tar dye – cancer studies unavailable; Not assessed for safety in cosmetics by industry panel
42. 2- AMINO- 4- NITROPHENOL
Prohibited for use in cosmetics in the European Union; Cancer – limited evidence of carcinogenicity; Not assessed for safety in cosmetics by industry panel
43. BRUCINE
Prohibited for use in cosmetics in the European Union; Highly toxic; Not assessed for safety in cosmetics by industry panel
44. ACID BLUE 3
Color additive – banned or not approved for use in cosmetics; Not assessed for safety in cosmetics by industry panel
45. ACID YELLOW 3
Color additive – banned or not approved for use in cosmetics; Not assessed for safety in cosmetics by industry panel
46. PIGMENT BLUE 15
Color additive – banned or not approved for use in cosmetics; Not assessed for safety in cosmetics by industry panel; In other consumer products besides personal care products
47. NAPHAZOLINE HYDROCHLORIDE
Prohibited for use in cosmetics in the European Union; Not assessed for safety in cosmetics by industry panel; Not assessed by industry panel
48. DIPHENHYDRAMINE HCL
Prohibited for use in cosmetics in the European Union; Not assessed for safety in cosmetics by industry panel; Not assessed by industry panel
49. TETRAHYDROZOLINE HYDROCHLORIDE
Prohibited for use in cosmetics in the European Union; Not assessed for safety in cosmetics by industry panel; Not assessed by industry panel